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Can I use PHA (Gluconolactone) and Niacinamide (B3) together?

⚡ Quick answer: PHA (Gluconolactone) and Niacinamide (B3) layer well together — a common, complementary K-beauty pairing. Apply thinnest to thickest and give each a moment to absorb.

Can you use PHA (Gluconolactone) and Niacinamide (B3) together?

✅ Fine together

PHA (Gluconolactone) and Niacinamide (B3) layer well together — a common, complementary K-beauty pairing. Apply thinnest to thickest and give each a moment to absorb.

PHA (Gluconolactone) guide → · Niacinamide (B3) guide →

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🙋 People also ask

Can you use vitamin C and niacinamide together?

Yes, current understanding is that vitamin C and niacinamide can be used together safely, and many Korean formulas combine them. The old warning that they cancel out is largely outdated. If your skin is sensitive, you can still apply them at different times of day to be cautious.

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What does niacinamide do?

Niacinamide is a form of vitamin B3 widely used in Korean skincare to help brighten the look of dullness, refine the appearance of pores and support the skin barrier. It's gentle, well tolerated by most skin types and pairs easily with many other ingredients.

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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed 2026-06-21.

General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.