The Clinical-Grade Solution for Advanced Hyperpigmentation and Dark Spots
Isobutylamido Thiazolyl Resorcinol (Thiamidol) is widely recognized as one of the most powerful cosmetic-grade inhibitors of human tyrosinase available today. Benchmarked against industry leaders like Eucerin, this high-performance active is specifically engineered to target stubborn dark spots and post-inflammatory hyperpigmentation (PIH) with clinical precision, providing a visible improvement in skin tone evenness.
| CAS No. | 1428475-80-6 |
|---|---|
| Source | High-Purity Cosmetic Synthesis |
| Appearance Color | White to Light Yellow Crystalline Powder |
| Key Parameter | Purity ≥ 99.0% |
| Solubility | Oil-Soluble / Alcohol-Soluble |
Shaanxi Huatai Bio-fine Chemical Co. presents a high-purity, cosmetic-grade Isobutylamido Thiazolyl Resorcinol that serves as the ultimate benchmark for clinical brightening. Our unique advantage lies in providing a 99% purity crystalline form that offers superior affinity for human tyrosinase compared to traditional brightening agents like Kojic Acid or Arbutin. This ingredient is our signature “anti-spot gold,” designed for brands looking to formulate professional-grade serums that deliver rapid, targeted results on melasma and age spots without the irritation often associated with resurfacing acids.
Isobutylamido Thiazolyl Resorcinol is a revolutionary resorcinol derivative that has redefined the standards for skin brightening. It is a functional cosmetic active that specifically targets the rate-limiting step of melanogenesis in human skin.
Our production process ensures a highly stable molecule with minimal residual impurities.
Purity: ≥ 99.0%
Loss on Drying: ≤ 1.0%
Heavy Metals: < 10 ppm
Stability: Highly stable in oil-in-water emulsions when protected from direct light.
Human Tyrosinase Inhibition: Unlike many actives tested on mushroom tyrosinase, this molecule is a potent inhibitor of human tyrosinase, effectively blocking the production of melanin at the source.
Pigment Regulation: It modulates the entire pigment production cycle, preventing the formation of new spots while fading existing discoloration.

Industry Benchmark: Directly comparable to the efficacy of top-tier international anti-spot brands.
Ultra-Low Effective Dosage: Delivers significant clinical results at very low concentrations compared to traditional whitening agents.
Targeted Efficacy: Highly effective on stubborn dark spots, including age spots and sun damage.
Recommended Usage: 0.1% – 0.2%.
Solubility: Dissolve in the oil phase or use a suitable solvent like Ethoxydiglycol or Propanediol before adding to the formulation.
pH Stability: Best maintained in a pH range of 4.5 – 6.0.
Our manufacturing facility operates under ISO 9001/22000 and HALAL certifications. We provide a full technical dossier to ensure our cosmetic-grade active meets the stringent safety requirements of global skincare markets.
Thiazolyl Resorcinol + Niacinamide: To block melanin production while simultaneously preventing pigment transfer to surface cells.
Thiazolyl Resorcinol + Ectoin: To brighten skin while providing a powerful protective shield against UV-induced stress and inflammation.
Thiazolyl Resorcinol + Glabridin: A “brightening gold” duo for intensive, multi-level spot correction.
This active is the primary ingredient in high-potency “Dark Spot Correctors” and “Clinical Brightening Serums”. Brands using our high-purity powder have successfully launched products that rival premium European skincare lines in performance tests.
Clinical literature indicates that Thiazolyl Resorcinol is significantly more effective than traditional agents like Hydroquinone (in a cosmetic context) for improving skin tone evenness without the associated safety concerns. Internal lab data confirms a visible reduction in spot intensity within 4 to 8 weeks of use.
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