Phenylethyl Resorcinol (CAS 85-27-8), also known as SymWhite 377, is a highly sought-after cosmetic ingredient renowned for its exceptional skin lightening and antioxidant properties. For formulators, understanding how to best incorporate this potent active is key to unlocking its full potential. As a leading manufacturer and supplier, we offer practical insights and formulation tips to ensure your products deliver optimal results.

Understanding the Basics: Properties and Applications

Phenylethyl Resorcinol is a white to beige crystalline powder with a high purity (typically ≥99.0%). Its primary function is to inhibit tyrosinase, the enzyme that drives melanin production, thereby reducing hyperpigmentation and evening skin tone. It also acts as a powerful antioxidant, protecting the skin from free radical damage and contributing to anti-aging benefits. Its applications span across skin whitening creams, serums, treatments for dark spots, freckle reduction, and anti-aging formulations.

Key Formulation Considerations for Phenylethyl Resorcinol

  • Incorporation Phase: Phenylethyl Resorcinol is best incorporated into the oil phase of your formulation. This ensures its stability and allows for effective dispersion. While it can be mixed directly into a cream base in the final step, it's often recommended to pre-disperse it in a suitable oil or solvent within the oil phase.
  • Optimal pH Range: The ideal pH for formulations containing Phenylethyl Resorcinol is generally between 4.0 and 5.5. Maintaining this pH range is crucial for its stability and efficacy.
  • Temperature Sensitivity: While relatively stable, it is advisable to add Phenylethyl Resorcinol during the cool-down phase of production, ideally when the formulation temperature is below 45°C (113°F). Some sources suggest temperatures up to 50°C may be tolerated, but lower temperatures help preserve its integrity.
  • Solubility: It is soluble in oils and certain glycols like propylene glycol, which aids in its incorporation into cosmetic bases.
  • Recommended Usage Levels: Typical usage levels range from 0.1% to 1.0%. For leave-on products, 0.5% is often recommended as a starting point. Always consult specific product guidelines and conduct stability testing.

Sourcing High-Quality Phenylethyl Resorcinol

When you need to buy Phenylethyl Resorcinol, choosing a reliable supplier is paramount. Look for manufacturers that can guarantee high purity (≥99.0%) and provide comprehensive technical documentation such as Certificates of Analysis (COA) and Material Safety Data Sheets (MSDS). As a leading supplier in China, we are committed to providing cosmetic manufacturers with premium-grade SymWhite 377. We offer competitive pricing for bulk purchases, ensuring you can access this powerful ingredient for your product development without compromising on quality. Understanding the price per kilogram for various quantities will aid in your procurement planning.

Partnering for Success

Formulating with Phenylethyl Resorcinol can significantly enhance the efficacy and market appeal of your skincare products. By adhering to best practices for its incorporation and sourcing from trusted manufacturers, you can confidently create advanced formulations that address hyperpigmentation and deliver radiant, youthful-looking skin. We are here to support your formulation journey with high-quality ingredients and expert advice. Contact us today to learn more about purchasing Phenylethyl Resorcinol and to receive a quote.