★What is the appearance and purity of your cosmetic-grade Nicotinamide Powder?
It appears as white crystalline powder with purity ≥ 99% (HPLC test), low impurity, low nicotinic acid content, and stable batch consistency.
★Is Nicotinamide Powder water-soluble or oil-soluble?
Niacinamide is excellent water-soluble, easy to dissolve in water phase and compatible with most aqueous & emulsified formulas.
★How does Nicotinamide Powder brighten skin?
It inhibits the transfer of melanin from melanocytes to keratinocytes without damaging melanocytes, achieving gentle and long-lasting brightening effect.
★What products is Nicotinamide Powder suitable for?
Whitening serums, oil-control lotions, barrier repair creams, toners, masks, sunscreens, sensitive skin care products and anti-aging cosmetics.
★What is the recommended usage rate of Nicotinamide Powder in formulations?
Daily mild care: 1%–2%
Oil control & brightening: 2%–5%
High-efficiency repair: 5%–10%
★What ingredients can Nicotinamide Powder be compounded with?
It can be combined with vitamin C derivatives, tranexamic acid, arbutin, glabridin, hyaluronic acid, peptides and centella asiatica to enhance efficacy.
★What is the recommended dosage of Niacinamide in cosmetic formulations?
Effective concentration ranges vary by target benefit:
Barrier repair / moisturizing: 2-5%
Skin brightening / hyperpigmentation: 4-5% (studies show 5% effective)
Anti-aging / wrinkle reduction: 3-5%
Sebum control / pore reduction: 2-4%
Anti-acne / anti-inflammatory: 2-5%
General purpose (toners, lotions): 2-3%
Higher concentrations (up to 10%) are safe but may cause mild irritation for some users. For first trials, start at 2-3%. Note: Some markets restrict Niacinamide to ≤5% for leave-on products (check local regulations).
★Is Niacinamide approved for cosmetic use in the EU, USA, and China?
EU: Listed in CosIng with no concentration restriction (typical use ≤5%).
USA: Allowed; FDA considers it safe for cosmetic use.
China (NMPA): Listed in IECIC 2021 (INCI: 烟酰胺) with no maximum concentration specified, but some finished product registration guidelines suggest ≤5% for leave-on.
We provide full registration documents including COA, MSDS, TDS, and China compliance declaration. Note: For export to Japan, Niacinamide is classified as a “quasi-drug” active at certain concentrations; please check local requirements.
