Zinc PCA

Zinc PCA is the zinc salt of pyrrolidone carboxylic acid, combining zinc’s sebum-suppressing and anti-inflammatory action with PCA’s natural moisturising factor hydration. The result is a rare two-in-one for oily and acne-prone skin: it visibly reduces shine and pore congestion over weeks while keeping skin comfortable — not the stripped-dry feel classic acne agents leave. At 1–2% it also mildly inhibits the 5α-reduction that drives oil production and calms blemish-related redness. Ideal in gel serums and mattifying moisturisers for the T-zone. Pairs perfectly with niacinamide for a science-based oily-skin protocol without prescription actives.