Ingredient efficacy

Zinc PCA: does it work, and at what %?

Zinc PCA is one of the actives we grade on evidence, not marketing. The benefit is real — but only when the dose clears the threshold the research supports. Here's the number, and the products that actually hit it.

0.1% effective dose · 1% strong

The verdict: Zinc helps regulate sebum and has anti-inflammatory effects.

OilinessAcne

How we grade Zinc PCA

We check the disclosed concentration against the effective threshold from peer-reviewed dermatology literature and regulatory monographs, then weigh the formulation and any product-specific study. The grade is computed from the open rubric — re-run it on any ingredient list and you get the same letter. Also labeled as Zinc.

8 graded products with an effective dose of Zinc PCA

A Mad Hippie Daily protective serum.
— · 12.7% Zinc PCA 87/100 B The Ordinary Niacinamide 10% + Zinc 1%
$6 · 1% Zinc PCA 81/100 B The Ordinary Niacinamide 10% + Zinc 1% Oil Control Serum
$6 · 1% Zinc PCA 81/100 B The Ordinary Niacinamide 10% + Zinc 1% Oil Control Moisturizer
$17 · 1% Zinc PCA 81/100 B Naturium Niacinamide Serum 12% + Zinc 2%
$17 · 2% Zinc PCA 81/100 C Supergoop! mineral matte screen
— · 17.4% Zinc PCA 67/100 C Badger Daily Mineral Sunscreen with Zinc Oxide, SPF 30
— · 18.75% Zinc PCA 67/100 C Little Urchin Natural Clear Zinc Sunscreen SPF 50
— · 22.75% Zinc PCA 63/100

Browse all graded products →

Common questions

What concentration of Zinc PCA is effective?

On Visage Theory's rubric, Zinc PCA reaches an effective dose at 0.1% and a strong, research-backed dose at 1%. Below that, the labeled benefit is unlikely no matter how good the marketing is.

Is more Zinc PCA always better?

Not necessarily — past the effective range you mostly add irritation risk, not benefit. What matters is clearing the threshold in a stable formula, which is exactly what our grade checks.

How do I know a product actually contains an effective dose of Zinc PCA?

Most brands list the active but hide the concentration. When the dose isn't disclosed we can't confirm efficacy, so we withhold a grade rather than guess. Products that disclose an effective dose are graded and listed below.

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