Niacinamida 10% Serum

Niacinamida 10% Serum by Principia Skincare is formulated for oily, combination, acne-prone, normal skin. Principia's bestseller and the product that put Brazilian direct-to-consumer skincare on the map. 10% niacinamide + zinc PCA in a stripped-back formula that's basically The Ordinary's approach with Brazilian R&D. At R$89 (~$18 USD), it undercuts imports by half and delivers the same sebum-regulating, pore-minimizing, post-inflammatory-hyperpigmentation-fading results that make niacinamide the consensus oily-skin active. The minimalist INCI list is the point — no fragrance, no silicones, no filler. Principia is doing for Brazil what The Ordinary did for the West: evidence-based actives at accessible prices.

The key active ingredients in Niacinamida 10% Serum are Niacinamide, Zinc PCA. It's known for: 10% niacinamide + zinc PCA — gold-standard oil-control duo and minimalist INCI — no fragrance, silicones, or unnecessary fillers.

Yes, Niacinamida 10% Serum targets pores, oiliness, acne, hyperpigmentation. 10% niacinamide + zinc PCA — gold-standard oil-control duo

Niacinamida 10% Serum retails for around $18, which places it in the budget range for serums. Check the "Where to Buy" section above for current retailer prices.

The main drawbacks to be aware of: the 10% concentration can cause initial flushing in sensitive skin; the watery texture pills under some heavier moisturizers; distribution mostly online — hard to find in pharmacies.