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Phenylethyl Resorcinol

Also-called-like-this: SymWhite
What-it-does: antioxidant, skin brightening

Official CosIng Information


A skin-lightening and antioxidant active ingredient derived from a molecule that exists naturally in Pine tree. According to the clinical results of the manufacturer, 0.5% of phenylethyl resorcinol is more effective than 1% of well-known skin-lightener kojic acid. 

Though the results from the manufacturer sound quite promising, a skin-lightening study from 2013 involving phenylethyl resorcinol shows quite moderate results. In the 80 participants, 12-week study, phenylethyl resorcinol was combined with three other actives (disodium glycerophosphate, L-leucine, and undecylenoyl phenylalanine) and only 57% of the participants showed at least a moderate response and 17% did not improve at all.

Show me some proof

  • Journal of cosmetic dermatology, 2013 Mar;12(1):12-7, Efficacy of hydroquinone-free skin-lightening cream for photoaging

Products with Phenylethyl Resorcinol

Hylamide Booster;C25 SkinMedica Lytera 2.0 COSRX Mela14 White Ampule PCA Skin Pigment Gel Hq Free Zelens Z Lumious Brightening Serum PCA Skin Pigment Gel Purid Refreshing Brightening Serum Bellflower Glutathione Power Brightening Cream Physicians Formula Skin Booster Vitamin Shot - Brightening HydroPeptide Lumapro-C Serum La Roche-Posay Pigmentclar Serum Riversol The Corrector Shu Uemura Blanc:Chroma Brightening & Polishing Gentle Cleansing Oil YUESAI Brighten White Peony Ultra Moisture Spot Erasing Essence Avene D-Pigment Light Avene D-Pigment Riche Dark Spot Lightener Garnier Light Complete White Speed Super Essence Lancôme Blanc Expert Skin Tone Brightening Emulsion LANCER Fade Serum Intense DR. SABA QUTUB Miracle Pro Vitamin Serum Some By Mi Galactomyces Pure Vitamin C Glow Toner ISDIN Foto Ultra Isdin Active Unify Color Fusion Fluid Spf 50+ Indeed Laboratories Pepta-Bright L'Oreal Revitalift Triple Power Anti-Aging Day Lotion Spf 30 L'Oreal White Perfect Clinical Overnight Cream Dr Dennis Gross Clarifying Colloidal Sulfur Mask La Roche-Posay Pigmentclar Uv Spf30 - Skin Tone Correcting Daily Moisturiser 40Ml L'oreal Loreal Paris Revitalift Bright Reveal Brightening Day Moisturizer Spf 30 Vichy Normaderm Beautifying Anti-Blemish Care La Roche-Posay Pigmentclar Eyes - Dark Circle Skin-Evening Corrector La Roche-Posay Pigmentclar Eyes Anti-Dark Circle Brightening Care Garnier Pure Active Sensitive Anti-Blemish Soothing Moisturiser Ducray Melascreen Handcream Spf 50 Lancôme Rénergie Multi-Lift Ultra Full Spectrum Cream Garnier Moisture Bomb Super-Hydrating 3-In-1 Moisturiser Spf10 LANCER Radiance Awakening Mask Intense with LES-10 Some By Mi Galactomyces Pure Vitamin C Glow Serum Lancôme Rénergie Lift Multi-Action Ultra Moisturizer Spf 30 Helena Rubinstein Re-Plasty Laserist Garnier Clearly Brighter Anti-Sun Damage* Daily Moisturizer Spf 30 Garnier Clearly Brighter Even Tone Spf 30 Daily Moisturizer