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Texture Improvement
The Ordinary

Niacinamide 10% + Zinc 1%

High-concentration niacinamide for pores, texture & sebum

Category
Serum
Price
¥800〜¥1,200
Rating
4.5/5
全肌質対応

Key Ingredients

ナイアシンアミド(ビタミンB3) 10%
Promotes ceramide synthesis for barrier strengthening. Normalizes sebum, tightens pores, and inhibits melanin transport to reduce dullness.
亜鉛 PCA 1%
Mineral that helps regulate sebum production. Also has antibacterial properties for acne prevention.

How It Works

Niacinamide serves as NAD+/NADH precursor, promoting keratinocyte differentiation and barrier function. Upregulates ceramide synthesis enzymes (serine palmitoyltransferase), increasing intercellular lipid production. Acts directly on sebaceous glands to suppress sebum (reduces triglyceride/fatty acid production). Inhibits melanosome transfer to keratinocytes for brightening. Zinc PCA suppresses 5α-reductase activity, further controlling excess sebum.

How to Use

After cleansing and toner, apply 2-3 drops to palm and gently pat into entire face. Can use AM and PM. Safe to combine with Vitamin C (previous concerns about incompatibility have been debunked).

Expected Results

Improved texture and less visible pores at 2-4 weeks. Reduced dullness and more even skin tone at 4-8 weeks. Balanced sebum and less shine. Pigmentation improvement possible after 12+ weeks.

Scientific Evidence

Bissett DL, Oblong JE, Berge CA (2005)
Niacinamide: a B vitamin that improves aging facial skin appearance. Dermatol Surg
5%ナイアシンアミドの12週間塗布で、シワ・色素沈着・赤み・くすみ・弾力が有意に改善することを二重盲検RCTで実証。
Draelos ZD, Matsubara A, Smiles K (2006)
The effect of 2% niacinamide on facial sebum production. J Cosmet Laser Ther
2%ナイアシンアミドでも日本人女性の皮脂産生が有意に減少(4週間で26%減)。10%ではさらに顕著な効果。
Hakozaki T, Minwalla L, Zhuang J, et al. (2002)
The effect of niacinamide on reducing cutaneous pigmentation and suppression of melanosome transfer. Br J Dermatol
ナイアシンアミドがメラノソームの輸送を35-68%阻害し、色素沈着を有意に減少させることを実証。

Precautions

At 10% concentration, mild tingling may occur initially (usually subsides in 1-2 weeks). If redness/irritation persists, reduce frequency or start with 5%. Use within 12 months of opening.

Related Professional Treatments

Professional treatments that pair well with this home care product.

Hydrafacial Chemical Peel

Looking for professional care?

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■ Disclaimer
Information on this page is based on scientific literature and does not guarantee product results. Effects vary by individual. Discontinue use and consult a dermatologist if skin issues occur.