Ingredient guide
Zinc PCA
INCI name · zinc pca
In short
Zinc PCA (also known as zinc pyrrolidone carboxylic acid) is a skincare active generally associated with the look of pores and skin texture and smoothness. It is often chosen for oily and combination skin. MIRU describes it by what is visible on skin, never as a treatment or cure.
What it is
Zinc salt of PCA. Studied for sebum regulation and support of blemish-prone skin.
Evidence receipt
LimitedZinc · applied to skin
Based on 2 sources
Open the citable recordLimited but consistent evidence in relation to calmer, clearer skin. More supportive than central.
See 2 sources
Systematic review and meta-analysis: acne patients had significantly lower serum zinc; zinc reduced inflammatory papule counts as mono- or adjunct therapy.
inflammatory papule count, serum zinc
Dermatol Ther, 2020Zinc has antibacterial/anti-inflammatory and sebum-reducing effects; recommendation strength B (limited-quality evidence).
acne, sebum
J Drugs Dermatol, 2013
Affiliation note. Publication links report the study authors and their affiliations. MIRU does not infer independence from an affiliation alone.
Where it sits
Serums sit after toner and before moisturiser. Thinnest to thickest, water before oil.
- Cleanse
- Tone
- Zinc PCA
- Moisturise
- SPF
Also found as
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Check an ingredient listCommon questions
What does Zinc PCA do for skin?
Zinc PCA is associated in published research with the look of pores and skin texture and smoothness. Zinc salt of PCA. Studied for sebum regulation and support of blemish-prone skin. MIRU frames ingredients by what is visible, not by medical claims.
When should I use Zinc PCA?
Zinc PCA is typically used morning or evening. Introduce any new active on its own first and add one product at a time so you can see how your skin responds.
Is Zinc PCA suitable for my skin type?
Zinc PCA is often chosen for oily and combination skin. It is generally considered well tolerated. If your skin is reactive, patch-test first and watch for any irritation.
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Personal guidance, not medical advice.