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Glycine Soja Seed Extract

Also-called-like-this: Soybean Extract

Official CosIng Information


When you hear the word Soy, you probably associate it with soy sauce or tofu, not skincare. But as it turns out, the soybean has a bunch of useful active components and soybean extract is an interesting cosmetic ingredient with a wide range of possible effects. 

Its main active components are antioxidant phenolic acids and flavonoids as well as small and large soy proteins. The large proteins give soybean extract nice skin smoothing and softening properties, while the small proteins (soybean trypsin inhibitor (STI) and Bowman-Birk inhibitor (BBI)) are thought to inhibit skin pigmentation and delay hair regrowth.   

Regarding skin pigmentation, the soybean extract works by hindering melanosome transfer, meaning it blocks the melanin pigment from traveling up to the surface of the skin and becoming visible there. This is useful for most pigmentation situations but, if you have melasma, soy is not for you as melasma is estrogen-mediated and soy is a well-known phytoestrogen

The most famous and bioactive flavonoids in soybeans are the isoflavones called genistein and diadzein that have potent antioxidant and anti-inflammatory properties. Genistein is also proven to inhibit UV induced redness in human skin. These isoflavones are also the ones that make soy a phytoestrogen, meaning they have a (weak) estrogenic effect. Topical estrogen is known to decrease skin thinning and collagen loss and soy might be able to do the same, especially during and after menopause when natural estrogen levels run low.  

There is also some promising, but as yet not in-vivo (done on real people), research that soybean extract can stimulate both elastin and collagen synthesis and thus lead to healthier, younger-looking skin. 

Overall, soybean extract is a promising and multi-functional active, a nice addition to most ingredient lists.

Show me some proof

  • Waqas, Muhammad Khurram, et al. "Dermatological and cosmeceutical benefits of Glycine max (soybean) and its active components." Acta Pol Pharm 72.1 (2015): 3-11.
  • Baumann, LESLIE S. "Cosmeceutical critique: soy and its isoflavones." Skin & Allergy News 32 (2001): 17.
  • Zhao, Renbin, et al. "Extracts from Glycine max (soybean) induce elastin synthesis and inhibit elastase activity." Experimental dermatology 18.10 (2009): 883-886.

Products with Glycine Soja Seed Extract

Blithe Vital Treatment Pulp Essence - 8 Nourishing Beans V Magic Nuit Hydrating Pre-Serum dr. denese Hydroshield Ultra Moisturizing Face Serum Aveeno Positively Radiant Overnight Hydrating Facial cicabiafine Nourishing Body Gel Aveeno Positively Radiant Sheer Daily Face Moisturizer Spf 30 DRMTLGY Hydration Booster 10X Daisy Sky Advanced A Renewing Serum Dr. Jart+ Every Sun Day Tone Up Sun Screen Spf 50+ Pa+++ Matsuyama Hadauru Moisturizing Infusion Balancing Skin Lotion Matsuyama Hadauru Moisturizing Infusion Moist Rich Rilastil D-Clar Depigmenting Concentrate Drops Rilastil D-Clar Depigmenting Concentrate In Drops Secret Key Milk Brightening Toner Aveeno Positively Radiant Intensive Night Cream Aveeno Positively Radiant Maxglow No-Mess Sleep Mask Equate Beauty Naturally Beaming Broad Spectrum Daily Moisturizer Sunscreen, Spf 15 Giovanni Natural Mousse Air-Turbo Charged Hair Styling Foam Huda Beauty Silk Balm Hydrating And Nourishing Lip Balm Matsuyama Hadauru Moisturising Cleansing Gel Q+A Liquorice Lip Oil SANA Nameraka Honpo Skin Lotion SANA Nameraka Honpo Skin Lotion Rich SANA Nameraka Honpo Soymilk Mask SANA Nameraka Honpo Soy Wrinkle Care Skin Lotion N Troiareuke Radiance Ampoule e.l.f. Hydrogel Under Eye Mask Bite Beauty French Press Lip Gloss COSRX Blackhead Remover Mr.Rx Kit Elizavecca Witch Piggy Hell-Pore Bifida Pure Ample Moonshot Perfect Cleansing Oil Cotton SNP Black Pearl Renew Eye Patch Skinfix Lipid-Boost Jelly Skinfix Lipid-Hyaluronate Serum VENeffect Pore Minimizing Cleanser Youth Lab Lip Balm Aveeno Positively Radiant Daily Face Moisturizer For Even Skin Tone, Spf 15 Elizavecca Witch Piggy Hell Pore Galactomyces Premium Ample Giovanni L.A. Hold Hair Spritz Jordan Samuel Skin Soothing Face Oil Mediheal Placenta Revital Essential Mask Ex Tara Nurture Leave-In Topix Elite Fortified Moisturizer Topix Glycolix Elite Facial Cream Fortified V Magic V Magic Gel (V Gel) Avon Anew Hydra Fusion Nighttime Facial Treatment Avon Anew Power Serum Beauty Pro Thermotherapy Warming Gold Foil Mask Bioelements Probiotic Anti-Aging Serum Dermedic Oilage Face Cleansing Oil Syndet