Cosmetic Raw Materials
Xi'an Sost Biotech Co.,ltd
Cosmetic Raw Material Factory
Email: ericyang@xasost.com
Tel: +86 13165723260
Office: 18F Tower B, High-tech Modern City Building, Zhangba 5th Road, Xian, China, 710075
Symwhite 377 Powder
what is SYMWHITE 377 POWDER?
Phenethyl resorcinol, also known as 4-(1-phenylethyl)-1,3-benzene, is a resorcinol derivative. It is commonly known as SymWhite377. Phenethyl resorcinol has a strong antioxidant effect and strongly inhibits the activity of tyrosinase.
Phenethyl resorcinol, also known as Symwhite 377, is an ingredient that whitens the skin and results in a more homogeneous complexion, which effectively reduces melanin production in the skin by inhibiting tyrosinase synthesis.
Specification
|
Item |
Specification |
|
Appearance |
White to off - white crystalline powder |
|
Assay |
≥99.0% (HPLC) |
|
Melting Point |
108 - 112°C |
|
Solubility |
Soluble in ethanol, propylene glycol; slightly soluble in water |
|
Loss on Drying |
≤0.5% |
|
Residue on Ignition |
≤0.1% |
|
Heavy Metals |
≤10ppm (Pb), ≤2ppm (As) |
|
Microbiological Purity |
Total Plate Count ≤1000CFU/g; Yeast & Mold ≤100CFU/g; Pathogens: Negative |
|
Shelf Life |
36 months in sealed packaging |
|
Packaging |
1kg/bag, 5kg/drum, 25kg/drum; Customized packaging available |
SYMWHITE 377 EFFECTS
In which products can Phenylethyl Resorcinol be used?
*Brightening Creams and Serums: Suitable for use in products that target hyperpigmentation and uneven skin tone to create noticeable radiance.
*Anti-Aging Properties: Its anti-inflammatory properties make it a valuable addition to anti-aging products, creams and masks, helping to reduce signs of aging such as fine lines and wrinkles.
*Sun Protection: Can be added to sunscreens to increase protection against UV staining and oxidative damage.
*Cosmetic Uses: Used in foundations, BB creams and CC creams to improve skin tone and enhance radiance.
SOST Biotech – Your Trusted Phenylethyl resorcinol/Sym white 377 powderSupplier
✅ Certified Quality: ISO/GMP-compliant manufacturing
✅ Custom Solutions: Tailored concentrations & formulations
✅ Bulk Pricing: Competitive rates for OEM Services
✅ Global Shipping: Doorstep delivery with full documentation
Packing & Shipping
What We Can Do?
Product Data Sheets
| Analysis | Description | Result |
| Appearance | Brown powder | Conform |
| Odor | No special taste | Nasil |
| Identification | Conform with reference sample | HPLC |
| Mesh Size | 90%Though 80 Mesh | Conform |
| Loss on drying | <5% | 0.038 |
| Ash Content | ≤5.0% | GB5009.4 |
| Ash content | <20% | 0.1903 |
| Content (hypericin) | >0.3% | 0.301%（uv） |
| Heavy metal | <10ppm | Conform |
| Pesticide residue | Do not detect | Conform |
| Total bacteria | <1000cfu/g | Conform |
| Saccharomyces mycobacteria | <100cfu/g | Conform |
| Escherichia coli. | Do not detect | Conform |
| Salmonella | Do not detect | Conform |