Scalp Psoriasis: Causes, Triggers, Treatment — and What Actually Works in 2026

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Kapyderm USA  ·  Scalp Conditions  ·  Clinical Guide — July 2026

Scalp Psoriasis:
Causes, Triggers, Treatment —
and What Actually Works in 2026

97% of people with scalp psoriasis say it affects their daily life. The thick silvery plaques. The burning itch that doesn't stop. The treatment that works — until you stop using it. This is the complete clinical picture: what drives it, what triggers it, who gets it, why the standard treatment path has a ceiling, and what a comprehensive approach looks like today.

MA

Reviewed by: Marlen Arita — Master in Dermotricology
Kapyderm USA  ·  Published July 9, 2026  ·  22 min read

Home › Blog › Scalp Psoriasis — Complete 2026 Clinical Guide

Quick answer

Scalp psoriasis is an autoimmune condition driven by the IL-23/IL-17 cytokine axis that produces thick silvery-white plaques, intense burning itch, and a relapsing cycle that topical-only treatment cannot break. It affects up to 80% of the 9 million U.S. psoriasis patients. Key triggers include stress, infections, alcohol, and vitamin D deficiency. The 2026 treatment landscape includes roflumilast foam (FDA-approved May 2025), biologics, and plant-based clinical systems designed to support scalp surface renewal, microbiome balance, barrier integrity, and internal nutritional wellbeing — without steroids, coal tar, or a prescription.

In this article

1. What scalp psoriasis is — and what it looks like
2. Prevalence and quality-of-life data
3. Symptoms — beyond the flakes
4. Triggers — what causes flares
5. The IL-23/IL-17 mechanism
6. Scalp psoriasis on darker skin tones
7. Scalp psoriasis vs dandruff vs seborrheic dermatitis
8. Does scalp psoriasis cause hair loss?
9. Diet and scalp psoriasis
10. The 2026 treatment landscape
11. The Dermotricology plant-based protocol
12. Frequently asked questions

What Scalp Psoriasis Is — and What It Looks Like

Scalp psoriasis is plaque psoriasis occurring on the scalp. It shares the same underlying autoimmune mechanism as psoriasis elsewhere on the body — the immune system drives skin cells to multiply up to 10 times faster than normal, producing the characteristic buildup of thick, dead skin cells on an inflamed scalp surface. But the scalp presentation is clinically distinct: harder to reach with topical treatments, resistant to standard approaches, and disproportionately impactful on quality of life relative to the area involved.

On lighter skin tones, scalp psoriasis appears as raised, well-defined, reddish or salmon-colored patches covered with thick silvery-white scales. It frequently extends beyond the hairline onto the forehead, back of the neck, and around and behind the ears. On darker skin tones — including Black, Brown, and Hispanic skin — scalp psoriasis may appear purple, violet, or dark brown, with gray rather than silvery scales. This variation is a leading cause of misdiagnosis, discussed in detail below.

The 2025 network meta-analysis finding

A 2025 peer-reviewed network meta-analysis confirmed that scalp psoriasis "is often resistant to topical and conventional systemic agents" and that there is no consensus gold standard treatment.[1] This is the current state of the clinical literature — and the reason a comprehensive multi-driver approach matters.

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Prevalence and Quality-of-Life Data

80% of the 9 million U.S. psoriasis patients experience scalp involvement — the most common and often most distressing presentation[2]

76.3% of scalp psoriasis patients have Sensitive Scalp Syndrome — burning, prickling, tightness, and pain on top of the itch, per a 2025 multicenter study of 350 patients[3]

88% of psoriasis patients say the condition affects their overall emotional wellbeing — anger, helplessness, and embarrassment each reported by over 87%[4]

Research presented at the 2025 AAD Annual Meeting confirmed that scalp psoriasis drives severe quality-of-life impact even in patients with low total body surface area involvement.[5] The visibility of the scalp — flakes on every dark shirt, plaques at the hairline — creates a burden that clinical severity scores consistently underestimate. 72.4% of psoriasis patients report activity impairment.[4]

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Symptoms — Beyond the Flakes

Scalp psoriasis is frequently reduced to "flaking and itching" in consumer content. The actual symptom profile is significantly more complex — and understanding it matters for both diagnosis and treatment expectations.

• Thick silvery-white plaques — attached to the scalp surface, often with a dry, silvery scale that lifts off and flakes; on darker skin tones these appear gray rather than silver
• Burning itch — not just surface itchiness but deep, persistent burning; the 2025 Sensitive Scalp Syndrome study found 75.1% reported itching as the dominant sensation, followed by prickling, tightness, and burning[3]
• Scalp redness or inflammation — clearly visible on lighter skin; may be subtle or appear as purple/dark discoloration on darker skin
• Extension beyond the hairline — plaques frequently spread onto the forehead, temples, back of the neck, and inside and behind the ears
• Temporary hair thinning — from the chronic inflammation disrupting the follicle cycle (telogen effluvium); typically resolves when the condition is controlled
• Nail changes — pitting, thickening, discoloration, and onycholysis (nail separation) in many psoriasis patients; a key distinguishing feature from seborrheic dermatitis, which does not affect nails
• Sleep disruption — the nocturnal itch from scalp psoriasis is a documented quality-of-life issue affecting sleep and cognitive function

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Triggers — What Causes Scalp Psoriasis Flares

Scalp psoriasis is not random. Flares are triggered by identifiable factors that activate or amplify the IL-23/IL-17 inflammatory cascade. Identifying and managing your personal triggers is one of the most effective things you can do to reduce flare frequency — independently of whatever topical treatment you use.

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Stress — the single most commonly reported trigger. Cortisol directly suppresses immune regulation and activates the inflammatory cascade. The connection between stress events and psoriasis flares is well-documented and bidirectional: the condition causes stress, and stress worsens the condition.

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Infections — particularly streptococcal throat infections (strep), which are a documented trigger for both initial psoriasis onset and subsequent flares. The immune response to the infection activates the same inflammatory pathways that drive psoriasis.

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Scalp trauma or injury — the Koebner phenomenon: psoriasis appearing at sites of skin injury. Harsh brushing, chemical scalp treatments, tight hairstyles with tension at the hairline, and aggressive scratching can all trigger new plaques in susceptible scalp areas.

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Medications — lithium (used for bipolar disorder), beta-blockers (blood pressure medications), antimalarials, and NSAIDs are all documented to trigger or worsen psoriasis. If you started a new medication and noticed a psoriasis flare, mention this connection to your prescribing physician.

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Alcohol — a consistent, dose-dependent trigger. Alcohol suppresses immune regulatory function, increases systemic inflammation, and reduces the effectiveness of psoriasis treatment. Even moderate regular consumption is associated with more frequent and severe flares.

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Smoking — doubles the risk of psoriasis and worsens severity in existing disease through its pro-inflammatory effects on multiple immune pathways.

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Vitamin D deficiency — Vitamin D has direct immunomodulatory effects on the T-cell activation pathways involved in psoriasis. Deficiency removes a natural brake on the inflammatory cascade. Supplementation is one of the most evidence-supported nutritional interventions for psoriasis management.

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Cold, dry weather — winter and low-humidity environments reduce scalp moisture, increase scalp sensitivity, and are associated with flare peaks. Google search data on psoriasis consistently shows seasonal elevation in late winter and early spring in the northern hemisphere.[6]

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Harsh hair care products — sulfates, parabens, fragrances, alcohol-based products, and chemical treatments (relaxers, perms, bleach) can strip the scalp barrier and trigger inflammation at vulnerable follicle sites. For natural and coily hair types, the frequency of washing and product formulation choice is a particularly relevant factor.

Practical note

Keeping a simple trigger diary — noting flares alongside stress events, diet changes, weather, sleep, and product changes — is one of the most consistently useful clinical tools for personalizing psoriasis management. The triggers that matter most are specific to the individual, not universal.

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The IL-23/IL-17 Mechanism — Why This Is an Autoimmune Condition

Understanding the mechanism isn't just academic — it explains exactly why the relapse cycle exists, why topical-only treatment has a ceiling, and why the most effective pharmaceutical interventions (biologics) work the way they do.

The cascade: from dendritic cells to plaques

Environmental or genetic triggers activate dendritic cells in the skin. These secrete IL-23 — a cytokine that licenses Th17 T-cells to produce IL-17A and IL-22. IL-17A then drives keratinocyte hyperproliferation (skin cells 10× faster than normal), creating the plaque buildup, and generates a feedback loop that sustains the inflammatory environment.[7] This loop doesn't require ongoing external triggering to maintain itself — once established, it is self-perpetuating.

Why the relapse happens every time

Topical anti-inflammatories suppress the downstream output of this cascade — the visible inflammation and plaque formation — while the upstream immunological loop continues. When you stop, the loop is exactly where it was before. The biologics that produce dramatic results (Skyrizi, Taltz, Cosentyx) work by blocking specific points in the cytokine cascade — which is why their effects are more durable. The access barriers ($25,000+ annually, injections, immunosuppression) leave a real gap that a comprehensive botanical protocol — addressing the internal inflammatory environment alongside the scalp surface — is positioned to fill.

Systemic comorbidities — the same pathway, different tissues

The IL-17 pathway driving scalp plaques also contributes to psoriatic arthritis (up to 30% of patients), cardiovascular disease, metabolic syndrome, and depression through shared inflammatory mechanisms.[7] Severe psoriasis reduces life expectancy by approximately 3–4 years through these comorbidities. This is the clinical rationale for treating psoriasis as a systemic condition — and for including internal support in any comprehensive management protocol.

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Scalp Psoriasis on Darker Skin Tones

This section represents one of the most clinically underserved areas in scalp psoriasis content — and given that Kapyderm USA's partner network actively serves patients of all skin tones (including documented clinical outcomes in Black patients with coily hair), it belongs in any comprehensive guide.

How it looks on darker skin

On Black, Brown, and Hispanic skin, scalp psoriasis plaques appear purple, violet, or dark brown rather than red, with gray rather than silver scales. Post-inflammatory hyperpigmentation — dark spots remaining after plaques heal — is more pronounced and can persist long after the active disease is controlled. These differences mean it's frequently misdiagnosed as seborrheic dermatitis or "just dandruff."

The access and diagnosis gap

Black patients are 69% less likely to be prescribed a biologic than white psoriasis patients — a disparity driven by underrepresentation in medical literature, diagnostic undertraining, and insurance access barriers. A plant-based non-pharmaceutical clinical system is particularly relevant for populations who are systematically underserved by the pharmaceutical treatment pathway.[8]

Special considerations for natural and coily hair types

Standard scalp psoriasis treatment advice is designed for straight hair — frequent washing, foam or shampoo-based medicated treatments, leave-on applications. For natural and coily hair types, these protocols don't always translate. Washing frequency may be lower; protective styles (braids, locs, weaves) affect product access; and harsh medicated shampoos may strip moisture from hair types that are already prone to dryness. Botanical oil-based treatments — like K1 Essential Oil and KS115 in the Kapyderm system — offer better compatibility with natural hair care routines than foam or shampoo-only approaches.

Clinical documentation

Carole Mendoza, Certified Dermotricology Educator at Mendoza Dermotricology Solutions (Pooler, GA), documented a 40-year-old female patient with androgenetic alopecia on tightly coiled natural hair using the Kapyderm plant-based protocol — achieving significant crown density restoration in 16 weeks with zero pharmaceuticals. Read the full case study →

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Scalp Psoriasis vs Dandruff vs Seborrheic Dermatitis

These three conditions are among the most confused in scalp health. They share surface symptoms — flaking, scalp discomfort, redness — but have completely different underlying mechanisms, which means they need different interventions.

Feature	Scalp Psoriasis	Seborrheic Dermatitis	Dandruff
Mechanism	Autoimmune — IL-23/IL-17 axis	Microbial — Malassezia yeast overgrowth	Malassezia — mild, no significant inflammation
Scale appearance	Thick, dry, silvery-white (gray on dark skin); well-defined plaques	Greasy, yellowish, less-defined patches	Loose white or yellowish flakes; fine, not plaque-like
Scalp surface	Red/inflamed underneath (purple on dark skin)	Yellowish, oily background	Normal — no significant inflammation
Extends beyond hairline	Often — forehead, neck, ears	Rarely	No
Burning sensation	Yes — 76.3% have Sensitive Scalp Syndrome	Rarely	No
Nail changes	Common — pitting, thickening	No	No
Joint symptoms possible	Yes — up to 30% develop psoriatic arthritis	No	No
Can overlap	Psoriasis + seborrheic dermatitis together = sebopsoriasis. A 2025 study found SD may be a risk factor for progression to scalp psoriasis.

The critical practical distinction between scalp psoriasis and dandruff: dandruff responds to antifungal shampoos (ketoconazole, zinc pyrithione) because its cause is microbial. Scalp psoriasis does not resolve with antifungal treatment alone because its cause is autoimmune. If antifungal shampoos haven't resolved your scalp condition after consistent use, psoriasis or sebopsoriasis should be considered.

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Does Scalp Psoriasis Cause Hair Loss?

Yes — but in the vast majority of cases it is temporary, not permanent. Scalp psoriasis causes telogen effluvium: chronic inflammation disrupts normal follicle cycling, pushing more follicles simultaneously into the resting (telogen) phase, resulting in increased shedding and reduced density. This typically resolves when the condition is controlled — the follicles are dormant, not destroyed.

Permanent scarring alopecia from scalp psoriasis is rare, occurring only in very severe, long-standing, untreated cases where chronic inflammation generates fibrous tissue that permanently replaces the follicle. For most people managing scalp psoriasis, hair loss is a symptom of active disease, not a prognosis for permanent change.

Important note: aggressive scratching, picking at plaques, and certain treatments (high-strength salicylic acid, retinoids) can themselves cause additional hair breakage — independent of the psoriasis itself. Mechanical gentleness with the scalp during active disease is an underemphasized part of hair loss prevention.

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Diet and Scalp Psoriasis — The Internal Connection

Diet influences scalp psoriasis through the gut-skin axis and systemic inflammatory load. An anti-inflammatory dietary pattern can reduce the internal environment that sustains the IL-23/IL-17 cascade between flares — making diet one of the most actionable non-pharmaceutical levers in scalp psoriasis management.

Prioritize — anti-inflammatory

• Fatty fish (salmon, mackerel, sardines) — omega-3 fatty acids directly reduce inflammatory cytokine production
• Colorful vegetables and fruits — antioxidants neutralize free radicals that amplify skin inflammation
• Olive oil — oleocanthal has documented anti-inflammatory properties
• Vitamin D — supplementation supports immune regulation; deficiency is a documented trigger
• Probiotic-rich foods (fermented vegetables, kefir, yogurt) — support gut microbiome diversity that modulates systemic immune response
• Whole grains — maintain insulin sensitivity and reduce metabolic inflammation

Reduce — pro-inflammatory

• Alcohol — dose-dependent trigger; even moderate regular consumption increases flare frequency and reduces treatment effectiveness
• Processed and ultra-processed foods — drive systemic inflammation through advanced glycation end-products
• Refined sugars — spike insulin and amplify the inflammatory cascade
• Red and processed meats — associated with higher systemic inflammatory markers in psoriasis patients
• Nightshade vegetables (tomatoes, peppers, eggplant) — anecdotally reported as triggers by some patients; evidence is individual, not universal

The most evidence-supported dietary pattern for psoriasis is the Mediterranean diet — consistent with the anti-inflammatory priorities above. Emerging research on personalized dietary approaches based on gut microbiome analysis represents the next frontier in dietary management of inflammatory skin conditions.

Obesity and metabolic syndrome are documented psoriasis comorbidities associated with more severe disease and reduced treatment response. Weight management is clinically relevant — not as cosmetic advice but as part of inflammatory load reduction.

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The 2026 Treatment Landscape — Honest Assessment

Treatment	Mechanism	Evidence	Limitations
Coal Tar (T/Gel, MG217)	Slows keratinocyte hyperproliferation; mildly anti-inflammatory	Moderate — NPF-recognized; mild maintenance use	Strong odor; hair discoloration in light hair; potential carcinogenic risk; no microbiome support; no internal component[9]
Salicylic Acid (T/Sal, Keralyt)	Keratolytic — softens and lifts scale	Useful for plaque softening; weaker anti-inflammatory	Strips scalp if overused; may cause hair breakage with prolonged use; surface only
Clobetasol Shampoo (Clobex) — Rx	Potent corticosteroid — fast suppression of surface inflammation	Strong for moderate-severe; fast clearance	Prescription; HPA axis suppression risk; skin thinning; rebound flare on stopping
Roflumilast Foam 0.3% (Zoryve) — Rx May 2025	PDE-4 inhibitor; steroid-free; once-daily; designed for hair-bearing areas	Strong steroid-free option; well-tolerated; FDA-approved for scalp	Prescription; newer long-term data; topical only; no systemic component
Biologics (Skyrizi, Taltz, Cosentyx, Tremfya)	IL-17/IL-23 blockade — targets the systemic driver directly	Excellent for moderate-severe; Skyrizi achieves 83–100% DLQI 0/1 in scalp trials	$25,000+/year; injection or IV; immunosuppression; access barriers for patients of color
Oral TYK2 inhibitors (Sotyktu; zasocitinib pending) Emerging	Blocks TYK2 — oral biologic-level efficacy; no injection	Strong phase 3 data; biologic-comparable results without needle	Prescription; black box considerations; newer safety data
Kapyderm Scalp Psoriasis Treatment	Intensive keratolytic scale support (KS115) + microbiome rebalancing + barrier support + botanical liver support + nutritional supplementation	Comprehensive plant-based support system for daily scalp management; compatible as adjunct to pharmaceutical care	No steroids · No coal tar · No prescription · 9 components · 2-phase protocol

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The Dermotricology Plant-Based Protocol for Scalp Psoriasis

The Kapyderm approach is designed to address all four scalp drivers simultaneously — intensive keratolytic action to lift surface scale buildup first, then anti-inflammatory botanical support and microbiome rebalancing, then barrier restoration, with internal nutritional support running throughout. The two-phase structure reflects a comprehensive clinical approach: Phase 1 delivers intensive daily support during the active scalp condition; Phase 2 maintains a balanced scalp environment for the long term.

Phase 1 — Intensive Daily Support (during active scalp condition)

1

KS115Topical · 3× daily The critical first step — intensive salicylic acid-based keratolytic formula that helps lift and soften thick surface scale buildup before other actives are applied. Salicylic acid is a recognized keratolytic with documented efficacy in reducing scalp scale in psoriasiform and seborrheic conditions (StatPearls, NCBI 2024). Without this step, subsequent formulas sit on top of the scale rather than reaching the scalp surface. Applied morning, afternoon, and evening.

2

Essential Oil K1Topical · After KS115 Concentrated botanical essential oil delivering deep lipid support to the scalp surface and documented anti-inflammatory action from its botanical active complex. Applied after KS115, followed by Special K Cream to seal in the botanical layer. Plant-derived anti-inflammatory constituents including terpenes and phenolic compounds have been studied for their role in modulating scalp inflammatory signaling in peer-reviewed literature.

3

Special K CreamTopical · After K1 Emollient barrier cream that supports structural lipid integrity of the scalp surface, helps maintain moisture balance, and seals in the botanical actives applied in preceding steps. Barrier support is a recognized strategy in the management of scalp inflammatory conditions — a compromised barrier amplifies sensitivity and extends recovery time.

4

Dandruff & Dry Hair Base Cleanser + Ampoule NTopical · Daily wash Ampoule N is mixed directly into the cleanser — delivering concentrated botanical anti-inflammatory actives when follicles are most receptive (post-cleansing, follicle open).

5

dePure SupplementInternal · 2 caps morning + 2 caps afternoon Artichoke, Boldo, Dandelion — a botanical liver support formula with documented hepatoprotective and cholagogue properties. Artichoke extract (Cynara scolymus) has peer-reviewed evidence for supporting liver function and reducing systemic inflammatory markers. A balanced internal environment is a recognized complementary strategy in integrative approaches to chronic inflammatory skin conditions. Taken as internal support alongside the topical protocol.

6

Revital SupplementInternal · 2 caps nightly High-density multivitamin and mineral complex formulated to support overall skin and hair health at the cellular level — including vitamins documented to contribute to normal skin function (Biotin, Vitamins B5, B6, C, E — all with EU-approved health claims for skin and hair). Taken nightly to support the body's natural overnight renewal processes.

Phase 2 — Ongoing Scalp Maintenance

Once the scalp condition has visibly improved and scale buildup has cleared, transition to a daily maintenance routine designed to keep the scalp environment balanced, sebum levels regulated, and the microbiome in a healthy state.

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Fungi-Activ + Base Tonic + Special K Cream + K1 OilTopical · Daily Replace KS115 with this combination. Fungi-Activ supports a balanced scalp microbiome — its active complex is formulated to help maintain healthy Malassezia levels, which the peer-reviewed literature identifies as a co-factor in sebopsoriasis. Base Tonic supports scalp circulation and ecological balance. K1 and Special K Cream support barrier integrity and deliver ongoing botanical anti-inflammatory support.

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Continue: Dandruff Cleanser + Ampoule N, dePure, RevitalOngoing Daily wash and internal support continue. The maintenance phase has no defined end — many people continue it indefinitely as their ongoing management protocol.

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Frequently Asked Questions

What does scalp psoriasis look like?

On lighter skin: raised, well-defined, reddish patches covered with thick silvery-white scales — often extending beyond the hairline. On darker skin (Black, Brown, Hispanic): purple, violet, or dark brown patches with gray scales. The color variation on darker skin is a major cause of misdiagnosis. The plaques in psoriasis are thicker and more defined than seborrheic dermatitis (greasy yellow flakes) or dandruff (fine loose flakes, no inflammation).

What triggers scalp psoriasis flares?

The most commonly documented triggers: stress (the single most reported trigger), streptococcal throat infections, scalp trauma or injury (Koebner phenomenon), certain medications (lithium, beta-blockers, antimalarials), alcohol, smoking, vitamin D deficiency, cold/dry weather, and harsh hair care products with sulfates or chemical treatments. Your personal triggers may be a subset of these — a flare diary is the most practical way to identify the specific factors relevant to your condition.

Why does scalp psoriasis keep coming back?

Because the IL-23/IL-17 autoimmune inflammatory loop continues operating between visible flares even when the scalp appears clear. Topical treatment suppresses the surface symptom while in use — when you stop, the cascade is exactly where it was. Long-term management requires addressing the systemic driver alongside the scalp surface, which is why internal support (dePure + Revital) is part of the Kapyderm protocol rather than an optional add-on.

What is the difference between scalp psoriasis and dandruff?

Dandruff: loose, fine, oily flakes from Malassezia yeast; no defined plaques; no significant inflammation; responds to antifungal shampoos. Scalp psoriasis: thick, dry, silvery-white or gray well-defined plaques with intense burning itch (76.3% have Sensitive Scalp Syndrome); often extends beyond the hairline; may involve nail changes and joint symptoms; does not resolve with antifungal treatment alone. If antifungal shampoos haven't helped after consistent use, psoriasis or sebopsoriasis should be considered.

Does diet affect scalp psoriasis?

Yes — through the gut-skin axis and systemic inflammatory load. The most evidence-supported approach is the Mediterranean diet: omega-3-rich fatty fish, colorful vegetables, olive oil, probiotic foods. Reduce alcohol (documented dose-dependent trigger), processed foods, refined sugars. Vitamin D deficiency is a documented psoriasis trigger — supplementation is evidence-supported. Obesity and metabolic syndrome are associated with more severe disease and reduced treatment response, making weight management a clinically relevant factor in comprehensive psoriasis management.

Is coal tar still recommended for scalp psoriasis in 2026?

Coal tar remains a clinically recognized option for mild scalp psoriasis — NPF-acknowledged. However, peer-reviewed literature explicitly cites "cosmetically unappealing formulations, foul odor, potential hair discoloration in light hair, and potential carcinogenic risk" as documented compliance barriers. The 2025–2026 landscape offers steroid-free alternatives including roflumilast foam (FDA-approved May 2025 for scalp psoriasis) and botanical systems addressing the same keratolytic and anti-inflammatory mechanisms without coal tar's compliance limitations.

Related Resources

01 Find a Certified Kapyderm Treatment Center → 02 Scalp Psoriasis Home Treatment — $424.89 → 03 Scalp Psoriasis Treatment Overview →

Clinical References & Sources

1. PMC12090945. Biologic and Non-Biologic Therapies for Scalp Psoriasis: Network Meta-analysis of RCTs. Dermatology Practice & Concept. 2025 Apr. PMC12090945
2. HCPLive. Psoriasis in 2025: Year in Review. December 2025. 9 million U.S. patients; 80% scalp involvement; roflumilast foam May 2025. hcplive.com
3. PMC12721185. Sensitive Scalp Syndrome in Scalp Psoriasis: Prevalence, Correlates, and QoL Impact. JDIN. November 2025. 76.3% SScS prevalence in 350 patients; itching 75.1% dominant. PMC12721185
4. PMC3532407. Quality of Life and Work Productivity Impairment among Psoriasis Patients: NPF Survey Data 2003–2011. 88% emotional wellbeing impact; 72.4% activity impairment. PMC3532407
5. PhysiciansWeekly / 2025 AAD Annual Meeting. Scalp Psoriasis Drives QOL Impact Despite Low BSA. PSORIATYK SCALP analysis. physiciansweekly.com
6. JMIR Dermatology. Google Trends in Dermatology: Scoping Review. Seasonal variation in psoriasis searches — elevated late winter/early spring. derma.jmir.org
7. PMC8019008. Interleukin-17 and IL-23: Mechanisms in Psoriasis and Comorbidities. IL-23/IL-17 cascade; 30% psoriatic arthritis; 3–4 yr life expectancy reduction. PMC8019008
8. WebMD. How Does Psoriasis Affect People of Color? Black patients 69% less likely to receive biologic prescriptions; misdiagnosis rates; presentation on darker skin. webmd.com
9. PMC8163911. Scalp Psoriasis: Literature Review of Effective Therapies and Updated Recommendations. Coal tar compliance issues; carcinogenic risk documented. PMC8163911
10. AbbVie / AAD 2026. Risankizumab in Scalp Psoriasis — UnlIMMited Trial. 83.3–100% DLQI 0/1 at 16 weeks. abbvie.com
11. Journal of Allergy and Clinical Immunology. Vol. 155, Issue 2. 2025. Multi-omics of seborrheic dermatitis and scalp psoriasis. SD as risk factor for scalp PSO progression; TGM1 and IL36RN as molecular targets. sciencedirect.com
12. National Psoriasis Foundation. Scalp Psoriasis. Updated June 30, 2026. Overview, symptoms, causes, triggers, treatment. psoriasis.org

All references are peer-reviewed publications, recognized clinical institutions, or current clinical guidelines. Last reviewed July 2026.

MA

Marlen Arita

Master in Dermotricology · Kapyderm USA

Marlen Arita holds the title Master in Dermotricology — the highest credential in the Kapyderm certification system — and serves as the clinical director of Kapyderm USA. She is responsible for certifying all Technicians of Dermotricology in the Kapyderm USA network. This article was reviewed and approved by Marlen Arita.

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