KT-939 and KX-826 can be used as a cosmetic ingredient and has received the review approval of the International Nomenclature Cosmetic Ingredient (the “INCI”), the details of which are set out as follows:
NexaWhite 939 (KT-939)
A Next-Gen Human Tyrosinase Inhibitor That Outperforms Thiamidol and 377
Ingredient Specifications
- Common Name：KT-939、OXIMIDOL、KWhite 939、NexaWhite 939
- INCI：Methyloxetanecarbamido Thiazolyl Resorcinol
- KCID: 메틸옥세테인카바미도티아졸릴레조시놀
- CAS Number：3081328-14-2
- Purity：≥98%
- Appearance：Off-white powder
- Storage Conditions：Store in alight-resistant, hermetically sealed container at ambient temperature.
- Dosage：<1%，Suggested 0.2%
- Applications：Skincare products for brightening and spot-correcting
- Packaging：1-100kg or Custom Solutions
Mechanism of Action
Ingredient Overview
KT-939 is a next-generation brightening and dark spot–correcting ingredient, selected through AI-powered screening. As a highly efficient tyrosinase inhibitor, it precisely targets tyrosinase and blocks the oxidation of tyrosine, effectively preventing melanin production at its source. It delivers clinically advanced depigmenting efficacy with an optimized safety profile. Compared to Thiamidol and 377, KT-939 demonstrates superior performance in both efficacy and skin tolerance—ideal for achieving natural radiance and even tone.
Ingredient Efficacy
Brightening & Dark Spot-Correction, Antioxidant Defense, Soothing Complex, Radiance Boosting, Enhanced Skin Tone Uniformity
Core Advantages
High-Efficacy Depigmenting, Clinically Proven Safety, Exclusive Patent Pending Formula
KX-826
A Next-Gen Ingredient For Hair Density, Scalp Care & Acne Control
Ingredient Specifications
- Common Name：KX-826、KOSHINE 826
- INCI：Methylpyridinyl Fluoromethoxybenzonitrile Dimethyloxothiooxoimidazolidine
- JNCI：メチルピリジニルフルオロメトキシベンソトリルジメチルオキソチオオキソイミダソリジン
- KCID: 메틸피리디닐플루오로메톡시벤조나이트릴다이메틸옥소터오옥소이미다졸리딘
- CAS Number：1272719-08-0
- Purity：≥98%
- Appearance：Off-White to light yellow powder
- Dosage：0.5 - 2%
- Applications：Scalp Care, Hair Density Support, and Sebum Control for Acne-Prone Skin
- Packaging：1-100kg or Custom Solutions
Mechanism of Action
Ingredient Overview
KX-826 is a small-molecule compound derived from natural plant monomers. It reduces DHT-related activity in sebaceous glands, supports skin and scalp balance, and delivers multiple benefits—including improved hair density, oil control, scalp comfort, and clearer acne-prone skin.
Ingredient Efficacy
Hair Density Support, Scalp Comfort Complex, Strand Strength & Nourishment, Sebum Regulation (Oil Control), Acne clear Skin Care
Core Advantages
Fast-acting, Clinically Proven Safety, Exclusive Patented Formula
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