Thick, silvery scales binding hair shafts into matted tufts. Temporary but alarming hair loss. A condition most clinicians miss — and most patients have never heard of. The complete clinical guide to pityriasis amiantacea (asbestos scalp): what causes it, why standard shampoos fail, how trichoscopy diagnoses it, which medications can trigger it, and what actually treats it.

97% of people with scalp psoriasis say it affects their daily life. The complete 2026 clinical guide — causes, triggers, what it looks like on darker skin, why coal tar has a ceiling, and the plant-based Dermotricology protocol that addresses all four drivers simultaneously.

Hair loss doesn't happen overnight. For months — sometimes years — before you notice a single extra strand in the shower drain, a silent inflammatory process is progressively destroying your follicles beneath the skin's surface. This guide covers the molecular cascade behind preventable hair loss, how to identify your scalp type, and what a clinical preventive protocol actually looks like — before damage becomes permanent.

As rising temperatures and intense solar radiation peak across the United States, your hair and scalp face an invisible chemical injury known as photo-photolysis. Ultraviolet rays directly attack the hair's protein matrix, breaking the crucial disulfide bonds that provide structural strength, while high heat forces sweat and oil glands into overdrive. When this hyper-secreted sebum mixes with sweat and oxidizes under direct sunlight, it forms inflammatory byproducts that can cause severe scalp irritation, itching, and sudden seasonal shedding. Traditional mass-market shampoos are often too aggressive for these seasonal issues, making specialized dermotricological photoprotection—such as Kapyderm's plant-based Sun Protector formulas—essential to neutralize environmental residues, deliver structural Hydrolyzed Collagen, and stabilize the scalp's natural defense barrier.