Best For Skin Types
All, Dry, Combination, Sensitive
Addresses
Usage Frequency
Daily
What Is Glycine Soja Seed Water?
Glycine Soja Seed Water is an aqueous extract derived from soybean seeds. It functions primarily as a humectant — a type of ingredient that attracts and binds water molecules to the skin's surface, helping to increase hydration levels.
Soy-derived ingredients have been used in skincare formulations for decades and are generally recognised for their skin-conditioning properties. This particular extract is lightweight and blends easily into serums, toners, and moisturisers.
How It Works
As a humectant, Glycine Soja Seed Water works by drawing water from the environment and deeper skin layers towards the stratum corneum (the outermost layer of skin). This increases the water content of the epidermis, which can improve hydration and skin plumpness.
The ingredient also contains amino acids and other plant compounds that may offer conditioning benefits, though the extent of these effects in cosmetic concentrations remains modest.
Clinical Evidence & References
Soy-derived ingredients, as a category, have been reviewed for safety and are generally recognised as well-tolerated in cosmetic formulations. However, specific clinical evidence for Glycine Soja Seed Water's efficacy in skincare is limited. Most data supporting its use comes from broader ingredient category assessments rather than dedicated efficacy studies.
The humectant function is well-established for this class of ingredient, so it can reasonably be expected to contribute to skin hydration when used in appropriate concentrations. Further targeted research would strengthen the evidence base for specific claims.
Published Research
How to Use
Glycine Soja Seed Water is typically incorporated into hydrating serums, toners, and lightweight moisturisers. It works best when applied to damp skin, as this maximises its humectant effect by providing moisture for the ingredient to bind to. Layer it before richer creams or oils to seal in hydration.
Safety & Precautions
Frequently Asked Questions
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Take the skin quizRelated Ingredients
Glycerol
Is a skin-restoring ingredient, meaning it is found naturally in skin Functions as a humectant, helping skin retain moisture
Glyceryl Acrylate/Acrylic Acid Copolymer
A synthetic polymer that helps formulations maintain texture whilst supporting skin hydration
Glycine
Amino acid that helps the body create proteins Produced by the body
Glycogen
A complex sugar known as a polysaccharide | Offers water-binding properties so is a humectant
Glycol
A lightweight humectant that draws moisture into the skin and aids ingredient delivery
Glycolide
A synthetic polymer used in advanced skincare delivery systems rather than as a direct skincare ingredient
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