TIRTIR Niacinamide 20% Serum is a high-strength brightening and tone-refining serum. It targets discoloration and excess oil with 20% niacinamide plus alpha-arbutin, while a hydrating base keeps the finish smooth—not sticky. There’s a small amount of retinol in the formula, so introduce gradually and use at night.

After cleansing and toner, apply 1–2 pumps/drops to face and neck, then follow with moisturizer. Start 2–3 nights per week; increase as tolerated. Because it contains retinol, use in the evening and wear sunscreen during the day. Avoid layering with other retinoids in the same routine. If your skin is reactive, buffer by applying over a light moisturizer.

TIRTIR champions healthy, radiant skin with a wide range of products from face and body care to cosmetics. Known especially for its bestselling Ceramic Cream and SOS Serum, the brand embodies its motto of “eternal brilliance.” 

Water, Niacinamide, Glycerin, Butylene Glycol, Propanediol, Alpha-Arbutin, 1,2-Hexanediol, Hydroxyacetophenone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Glycereth-25 Pca Isostearate, Ethylhexylglycerin, Caprylic/Capric Triglyceride, Macadamia Ternifolia Seed Oil, Zea Mays (Corn) Kernel Extract, Disodium EDTA, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydrogenated Lecithin, Retinol, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Brassica Campestris (Rapeseed) Sterols, Cholesterol, Polyglyceryl-10 Laurate, Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate, Aluminum/Magnesium Hydroxide Stearate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Polysorbate 60, Sorbitan Isostearate, Fructan, Potassium Cetyl Phosphate, Glucose, Chitosan, Tris(Tetramethylhydroxypiperidinol) Citrate, Glutathione, Zinc Pca

Types:
Normal – targeted brightening with a smooth, non-sticky finish.
Dry – use over hydrating layers and seal with cream.
Oily – helps regulate excess oil and keeps shine in check.
Combination – refine the T-zone while brightening uneven areas.
Sensitive – high strength; patch test and go slow (may tingle or flush at first).

Concerns:
Pigmentation/Dark Spots/Acne Scars — niacinamide + alpha-arbutin visibly even tone and help fade post-blemish marks over time.
Pore-Reduction/Enlarged Pores — high-dose niacinamide helps regulate sebum and refine the look of pores.
Blemishes/Acne-Prone — niacinamide + zinc PCA support a calmer, clearer look (support step; not a spot treatment).
Dullness/Uneven — resurfacing and tone-evening actives boost clarity and glow.
Aging — niacinamide (with a touch of retinol) supports smoother texture and early fine lines.