Niacinamide 20% Serum
TIRTIR
A high-concentration serum with 20% niacinamide, alpha-arbutin, and retinol to brighten skin, fade dark spots, and improve overall skin texture. Suitable for those targeting hyperpigmentation and uneven skin tone.
Key Ingredients
Humectant that attracts and retains moisture
Humectant and solvent for ingredient delivery
Humectant and solvent that enhances hydration
+ 15 more ingredients
Ingredient Effectiveness Data
Editorial baseline from K-beauty clinical research and community consensus. Real subscriber reports layer on as the community grows.
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Frequently Asked Questions
What are the key ingredients in Niacinamide 20% Serum?
The key active ingredients in Niacinamide 20% Serum by TIRTIR include Niacinamide (Vitamin B3) (brightening, pore-minimizing, barrier-support), Glycerin (Humectant that attracts and retains moisture), Alpha-Arbutin (Skin brightener that inhibits melanin production), Macadamia Seed Oil (Emollient oil that moisturizes and softens skin), Corn Kernel Extract (Antioxidant and skin conditioning agent). Drawing on K-beauty research and community consensus, key ingredients show 82% effectiveness for acne in oily skin types. Seoul Sister tracks ingredient effectiveness across 5,800+ K-beauty products to provide data-backed recommendations.
Is Niacinamide 20% Serum good for sensitive skin?
Niacinamide 20% Serum is a Korean serum by TIRTIR. Sensitive skin compatibility depends on individual triggers and allergies. Seoul Sister's AI advisor Yuri analyzes all 20 ingredients against your specific skin type, concerns, and known allergens to provide a personalized compatibility score. Common irritant ingredients like fragrance, alcohol denat, and essential oils are flagged automatically.
Is Niacinamide 20% Serum good for oily skin?
For oily skin, the key factors in evaluating Niacinamide 20% Serum are comedogenic ingredient ratings, oil content, and finish type. This serum contains 8 active ingredients. Seoul Sister's database cross-references each ingredient's comedogenic rating (0-5 scale) against your skin type to identify potential pore-clogging risks. Subscribe for a personalized oily skin compatibility analysis.
How much does Niacinamide 20% Serum cost?
Niacinamide 20% Serum by TIRTIR starts from $19.00 USD for 30ml. Seoul Sister Pro members compare prices across 6+ authorized retailers including Olive Young, Soko Glam, and YesStyle to find the best deal, with automatic price drop alerts.
Where to buy Niacinamide 20% Serum?
Niacinamide 20% Serum by TIRTIR is available from authorized K-beauty retailers including Olive Young Global, Soko Glam, YesStyle, and Amazon. Prices start from $19.00 USD. Seoul Sister verifies retailer authenticity and tracks counterfeit indicators to help you buy genuine Korean skincare products.