Zi
Zinc
Zinc PCA · Zinc GluconateSoothing
Trace mineral with mild astringent + antibacterial properties. Common pairing partner for niacinamide in oily-skin formulas.
What it does
Topical zinc reduces sebum production and has light antibacterial activity. Most evidence is for the niacinamide + zinc combination in oil-control serums. Standalone use is limited.
The evidence, graded
expert consensusNiacinamide and zinc both reduce sebum production through different mechanisms. They're commonly combined in oily-skin and acne-adjacent products.Bissett 2005 · Dermatologic Surgery ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Also known as
zinc pca, zinc gluconate
Pairs worth knowing
This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
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