Supplement analysis backed by scientific evidence · PT

← All supplements
Limited evidenceJoints & skin

Acne Support Formulas

Capsules combining zinc, vitamin A and botanicals for acne-prone skin. Zinc on its own has reasonable trial evidence; the mixed formulas as sold have essentially none, and none of this replaces standard acne treatment.

Evidence last reviewed: August 2026

What the science says

  • Zinc reduces inflammatory lesions Moderate evidence

    A systematic review and meta-analysis found that people with acne have lower serum zinc than controls, and that zinc treatment significantly reduced the mean inflammatory papule count, whether used alone or added to standard therapy. The included trials were small and used varied zinc salts and doses.

  • Herbal ingredients Limited evidence

    A systematic review of clinical trials of herbal medicines in acne found a scattered set of small, mostly short and poorly blinded studies across many different plants, with no single botanical supported by replicated good-quality evidence.

  • The finished blends Limited evidence

    No trial has tested a commercial multi-ingredient acne capsule against placebo. The vitamin A amounts in these products are orders of magnitude below the retinoid doses used in dermatology and should not be expected to act the same way.

Dosage & safety

Studied doseTrials of oral zinc in acne used roughly 30–50 mg of elemental zinc per day (often as zinc gluconate or sulfate) for 8–12 weeks. Blend labels typically supply 15–30 mg zinc plus 750–1500 mcg RAE vitamin A.
SafetyZinc above about 40 mg/day long-term can cause nausea and copper deficiency; take with food. Preformed vitamin A (retinol/retinyl palmitate) is teratogenic — do not use in pregnancy or if pregnancy is possible, and never stack it with isotretinoin. Zinc reduces absorption of tetracycline and quinolone antibiotics, which are common acne prescriptions; separate doses by several hours.

Scientific references

Where to buy

View on iHerb

Referral link — this site may earn a commission on purchases.

Related in Joints & skin