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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 Hylamide C25 Biomed Biobright SkinMedica Lytera 2.0 Tebitech Tebiskin LC Lightening Cream COSRX Mela14 White Ampule Skin Script Retinaldehyde Serum PCA Skin Pigment Gel Hq Free Zelens Z Lumious Brightening Serum Garnier Serum Mask Light Complete PCA Skin Pigment Gel Protocol Oxidated Retinol Serum Purid Refreshing Brightening Serum RejuvAus Ab Repair & Restore Antioxidant Serum For Oily Skin Rx1 RejuvAus Ab Repair & Restore Antioxidant Serum For Oily Skin Rx2 RejuvAus Ab Repair & Restore Antioxidant Serum For Oily Skin Rx4 Bellflower Glutathione Power Brightening Cream InstaNatural Dark Spot Corrector, Anti-Aging Physicians Formula Skin Booster Vitamin Shot - Brightening RejuAus Abc Repair & Restore Antioxidant Serum Rx2 RejuvAus Abc Repair & Restore Antioxidant Serum Rx1 RejuvAus Abc Repair & Restore Antioxidant Serum Rx4 Dermalogica Retinol Clearing Oil 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 labo Super White 377Vc Avene D-Pigment Light Avene D-Pigment Riche Dark Spot Lightener Garnier Light Complete White Speed Super Essence Hava Zingboim Age Protection Cream LancĂ´me Blanc Expert Skin Tone Brightening Emulsion Equilibra Carbone Attivo Maschera Viso LANCER Fade Serum Intense ZEFF Pure Brightening Cream Awake Beauty Hello, Sunshine Moisturizer DR. SABA QUTUB Miracle Pro Vitamin Serum Good Science Beauty 004-Br Skin Brightening Cream Some By Mi Galactomyces Pure Vitamin C Glow Toner Vichy Normaderm Phytosolution Sos Sulphur Paste 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 Garnier Light Complete Vitamin C Serum ISDIN Foto Ultra 100 Isdin Active Unify Fusion Fluid Spf 50+ La Roche-Posay Pigmentclar Uv Spf30 - Skin Tone Correcting Daily Moisturiser 40Ml