Zinc and skin health: overview of physiology and pharmacology

Review published in Dermatologic Surgery (2005) covering zinc’s roles across skin physiology — from basic cellular function to therapeutic applications in skin disease. Cited in the peat knowledge graph as the reference for zinc’s dermatological properties, because peat naturally contains zinc and the question of whether this contributes to peat’s therapeutic activity requires knowing what zinc does in skin.

Zinc’s Functions in Skin

Zinc is essential at multiple levels: structural (component of zinc-finger proteins that regulate gene expression), enzymatic (cofactor for hundreds of enzymes including those in collagen synthesis), immune (required for normal immune cell function and antibacterial defence), and wound healing (tissue repair processes are zinc-dependent). Deficiency in any of these functions produces measurable skin pathology — impaired wound healing, increased susceptibility to infection, acneiform eruptions.

Therapeutic Relevance

Zinc has documented antimicrobial activity against skin bacteria, including acne-associated Cutibacterium acnes and Staphylococcus epidermidis. It also has anti-inflammatory properties through multiple pathways. These are the same indications where peat shows benefit — the overlap is consistent with a zinc contribution.

Honest Caveats

The zinc content of peat varies significantly by deposit. Some Central European therapeutic peats are zinc-rich; Northern sphagnum peat is typically lower in mineral zinc. Whether the zinc concentration achieved in peat therapy is sufficient to produce the effects documented in topical zinc research requires deposit-specific analysis. The principle (zinc benefits skin) is well-established; its quantitative contribution to peat therapy specifically is not individually isolated in the current literature.