Shop Dr.Althea 15% Niacinamide Purity Serum 30ml
Serum
Dr.Althea

15% Niacinamide Purity Serum 30ml

~$22· 30ml
AcneDark spotsRadianceVisible pores

Tracked ingredients

Key actives from our research database. Click any to read the full evidence dossier.

Evidence behind the ingredients

Real citations from our research database — one per tracked active in this product. Click any ingredient name to read its full evidence dossier.

Tea Tree OilModerate evidence4 citations

A natural acne spot-treatment that kills the bacteria behind red, painful pimples. Slower than benzoyl peroxide but with fewer side effects when used at 5%.

Najafi-Taher R et al., A topical gel of tea tree oil nanoemulsion containing adapalene versus adapalene marketed gel in patients with acne vulgaris: a randomized clinical trial, Archives of Dermatological Research 2022;314(7):673-679 — RCT showed tea tree oil + adapalene nanoemulsion gel produced significantly better reduction in total, inflammatory and non-inflammatory acne lesions than standard adapalene

2022Positive — efficacyPMID:34251536View source ↗

Malhi HK, Tu J, Riley TV, Kumarasinghe SP, Hammer KA, Tea tree oil gel for mild to moderate acne; a 12 week uncontrolled, open-label phase II pilot study, Australasian Journal of Dermatology 2017;58(3):205-210

2017Positive — efficacyPMID:27000386View source ↗

Enshaieh S, Jooya A, Siadat AH, Iraji F, The efficacy of 5% topical tea tree oil gel in mild to moderate acne vulgaris: a randomized, double-blind placebo-controlled study, Indian Journal of Dermatology Venereology and Leprology 2007;73(1):22-5

2007Positive — efficacyPMID:17314442View source ↗
Rice Bran ExtractModerate evidence8 citations

A traditional Japanese brightener with built-in antioxidants. Softens, hydrates, and adds glow.

Syafitri E et al., Cutaneous Delivery of Bioactive Components from a Rice Bran Oil Nanoemulsion and Their Biodistribution in Porcine and Human Skin, International Journal of Pharmaceutics: X 2026

2026Mechanism onlyPMID:42028061View source ↗

Zamil DH et al., Dermatological uses of rice products: Trend or true?, Journal of Cosmetic Dermatology 2022;21(11):6056-6060 — review of rice-derived ingredients with antiaging, anti-inflammatory, brightening, photoprotective effects

2022Mechanism onlyPMID:35587098View source ↗

Miyasaka K et al., Anti-melanogenic effects of glucosylceramides and elasticamide derived from rice oil by-products in melanoma cells, melanocytes, and human skin, Journal of Food Biochemistry 2022;46(10):e14353 — rice-derived ceramides/elasticamide suppressed UV-induced pigmentation

2022Positive — efficacyPMID:35986572View source ↗
NiacinamideStrong evidence11 citations

A multitasker that calms redness, evens out skin tone, and helps oily skin balance out. One of the safest do-a-little-of-everything ingredients.

Moro F et al., Skin Cancer Prevention and Antiaging: Role of Nicotinamide, International Journal of Molecular Sciences 2026

2026Mechanism onlyPMID:42278444View source ↗

Passeron T et al., An Investigator-Blinded, Randomized Trial of a Broad-Spectrum Sunscreen Containing Sclareolide and Niacinamide, Dermatology and Therapy (Heidelberg) 2026

2026Positive — efficacyPMID:41240206View source ↗

Vergilio MM et al., Topical Formulation with Niacinamide Combined with 5 MHz Ultrasound for Improving Skin Ageing, Current Medicinal Chemistry 2025

2025Positive — efficacyPMID:39171587View source ↗
+1 more ingredient
Vitamin EModerate evidence6 citations

A workhorse antioxidant that defends your skin from daily oxidative damage. Pairs especially well with vitamin C, and it's in nearly every good moisturizer for a reason.

Neves JR et al., Efficacy of a topical serum containing L-ascorbic acid, neohesperidin, pycnogenol, tocopherol, and hyaluronic acid in relation to skin aging signs, Journal of Cosmetic Dermatology 2022;21(10):4462-4469 — tocopherol-containing antioxidant serum reduced pollution-induced damage and improved aging signs

2022Positive — efficacyPMID:35150043View source ↗

Warshaw EM et al., Patch Testing With Tocopherol and Tocopherol Acetate: The North American Contact Dermatitis Group Experience, 2001 to 2016, Dermatitis 2021;32(5):308-318 — 15-year NACDG data: positive patch-test reactions to tocopherol rare given widespread cosmetic use

2021Safety assessmentPMID:34238818View source ↗

Lin FH et al., Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin, Journal of Investigative Dermatology 2005;125(4):826-832 — ferulic acid + vit C + vit E combo doubled photoprotection vs C+E alone (cross-listed; same paper cited for Ferulic Acid and Vit C)

2005Positive — efficacyPMID:16185284View source ↗

Sources: PubMed · KCI · J-Stage · CNKI · Wanfang · SFD · MFDS · Cochrane · SCCS · CIR. Every entry points to a specific document. See methodology for what each outcome label means.

Layering conflicts

Ingredients in this product that can react with common actives. Avoid stacking unless noted.

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