4-Phenylethyl Resorcinol, also known as SymWhite® 377, is a synthetic compound developed for advanced skin brightening and whitening applications. Known for its strong inhibitory effect on tyrosinase, this active ingredient is 22 times more effective than kojic acid, while being safer and more stable in formulation. It is widely used in premium cosmetic and skincare products targeting hyperpigmentation, uneven skin tone, and age spots.
2. Key Benefits
-
Potent Whitening Agent: Strong tyrosinase inhibition helps reduce melanin formation
-
Even Skin Tone: Visibly improves dullness, age spots, and hyperpigmentation
-
High Stability: More stable than traditional whitening agents (e.g. arbutin, kojic acid)
-
Low Irritation Risk: Gentle on skin, suitable for sensitive and aging skin types
-
Easy to Formulate: Compatible with creams, serums, lotions, and masks
3. Applications
-
Whitening & Brightening Creams
-
Spot Treatment Serums
-
Anti-aging & Even-tone Products
-
Daily Moisturizers for Skin Radiance
-
Luxury Skincare & Dermocosmetics
