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Soy Isoflavones

What-it-does: antioxidant

Official CosIng Information


The biologically active, phytoestrogenic parts of the soybean. The most well-known one is genistein, a potent antioxidant that is proven to inhibit UV-induced redness in human skin. 

Soy isoflavones are also thought to be useful for situations when natural estrogen levels are low, such as during and after menopause. Low estrogen levels can cause skin thinning and collagen loss and soy isoflavones might be able to help with that. 

Show me some proof

  • Baumann, LESLIE S. "Cosmeceutical critique: soy and its isoflavones." Skin & Allergy News 32 (2001): 17.

Products with Soy Isoflavones

Biologique Recherche Serum Pigm 400 SANA Nameraka Honpo Soy Wrinkle Care Skin Lotion N Biologique Recherche Creme Pigm 400 Dr Dennis Gross Hydra-Pure Oil-Free Moisturiser Eveline Cosmetics Royal Snail 50+ VENeffect Firming Phyto-Lift Serum Dr. Dennis Gross Skincare Alpha Beta® Ultra Gentle Daily Peel For Sensitive Skin Isntree Aloe Soothing Gel (Moisture Type) Isntree Aloe Soothing Gel Fresh Cosmedix Phytoharmony Balancing Moisturizer Isntree Clear Skin Bha Toner JanMarini Age Intervention Face Cream Step 4 Dr Dennis Gross Alpha Beta Universal Daily Peel Cosmedix Phytoclear Clarifying Moisturizer Dr Dennis Gross Alpha Beta Extra Strength Daily Peel First Aid Beauty Skin Rescue Oil-Free Mattifying Gel Moisturizer June Jacobs Intensive Age Defying Hydrating Serum Dr Dennis Gross C+ Collagen Mist Perfect Skin Set & Refresh Emma S. Ageless Serum GLAMGLOW #Glittermask Gravitymud™ Firming Treatment Mask Hair Restoration Laboratories Professional Strength Hair Restore Shampoo Skin Actives Anti-Aging Cream VENeffect Anti-Aging Lip Treatment Ladival Anti-Age Anti-Pigment Spf 50+ Skin Actives Scientific Capillary Repair Cream Missha Misa Cho Gong Jin First Oil Dr Dennis Gross Ferulic + Retinol Triple Correction Eye Serum Dr Dennis Gross Clinical Grade Ipl Dark Spot Correcting Serum Emma S. Ageless Night Cream Mineralium Mineral Therapy Body Lotion Missha Misa Cho Gong Jin Cleansing Foam Primary Raw Doyou Soy Milk Ferment Essence Toner Verso Night Cream Dr. Barbara Stürm Brightening Serum Le Mieux Retinol Serum Missha Misa Cho Gong Jin Toner Cu skin Moisture Balancing Cream GLAMGLOW Gravitymud Firming Treatment PCA Skin Après Peel Hydrating Balm PURA D'OR Advanced Therapy Shampoo Aveeno Illuminating Daily Moisturizer Broad Spectrum Spf15 Sunscreen For Face Borghese Crema Ristorativo PM Hydrating Night Cream Dr Dennis Gross Drx Blemish Solutions™ Acne Eliminating Gel Missha Misa Cho Gong Jin Ampoule Rodan + Fields Redefine Overnight Restorative Cream Dr Dennis Gross Drx Blemish Solutions™ Acne Eliminating Gel Ducray Melascreen Handcream Spf 50 Milk Makeup Watermelon Brightening Face Mask Dr Dennis Gross Professional Grade Resurfacing Liquid Peel Step 1 iS Clinical Youth Intensive Creme