Soybean Protein
INCI: Glycine Soja Protein
Reviewed by Daisy · Last updated 18 Aug 2026
Also known as: Glycine Soja, Soy Protein
Plant protein for firming and nourishing
Addresses
EWG Safety Score
What Is Soybean Protein?
Soybean protein is extracted from Glycine soja (soy) and provides valuable amino acids and peptides for skin health. Soy has been a staple in Asian beauty traditions for centuries.
The protein helps improve skin elasticity and firmness by supporting the skins structural matrix. Soy also contains isoflavones with phytoestrogenic properties beneficial for mature skin.
Soybean protein is well-tolerated by most skin types and provides nourishment without the heaviness of some plant-based ingredients.
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Soybean Protein is a variant of Glycine Soja Protein, the form you will most often see on an ingredients list.
A plant-derived protein that conditions skin and may help support barrier function
Related Ingredients
Glycine Soja Protein
A plant-derived protein that conditions skin and may help support barrier function
Soy Protein Phthalate
Plant-derived protein that conditions skin and stabilises formulations
Soyamine
A plant-derived ingredient that helps stabilise formulations and improve texture
Soybean Oil Polyglyceryl-6 Esters
A plant-derived emollient and emulsifier that conditions skin whilst stabilising formulations
Stearamidopropyl Dimethylamine
A conditioning agent that reduces static and improves texture in rinse-off formulations
Stearamidopropyl Dimethylamine Stearate
A conditioning agent that helps reduce static and improve texture in formulations
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