GALACTOOLIGOSACCHARIDES
Humectant
Good
About GALACTOOLIGOSACCHARIDES
A prebiotic sugar mix (used in infant formula and gut health supplements) applied topically to support the skin microbiome. Very safe; gentle humectant.
Detailed Analysis
Galactooligosaccharides (GOS) are a mixture of short-chain oligosaccharides (typically 3-8 sugar units long) produced by enzymatic transgalactosylation of lactose. They are best known as a prebiotic in infant formula, with extensive food-safety data and regulatory approval in EU and US for infant nutrition. In cosmetics they function as a skin-microbiome prebiotic, hydrating humectant, and mild skin conditioning agent. The safety profile is excellent — no sensitization, no irritation, non-toxic at cosmetic concentrations. The main caveat is residual protein from the dairy source, which can be a concern for cow's milk-allergic individuals (though most cosmetic-grade GOS is highly purified). Typical cosmetic use 0.1-2%.
Skin Benefits
- ✓ Prebiotic oligosaccharide — supports skin microbiome
- ✓ Humectant/hydrating properties
- ✓ Food-grade safety history (infant formula)
- ✓ Non-irritating, non-sensitizing
Known Concerns
- ⚠ Derived from dairy in most supplies — minor allergen for milk-sensitive
- ⚠ Variable chain-length composition by supplier
Safety Score
Good
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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Download LuxSenseThis information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.