Betaine
HumectantSoothingNaturalAlso known as: Trimethylglycine, TMG, Cocamidopropyl Betaine
A naturally occurring osmolyte found in sugar beets. Functions as a humectant and osmoprotectant that helps cells retain water.
Routine placement
Serum · AM & PM
Time to results
Immediate hydration boost; 2-4 weeks for sustained improvement
Hydrating, osmoprotective, reduces irritation, improves skin barrier, soothes sensitive skin.
Present in moisturizers and soothing products. Suitable for daily use.
Natural osmolyte with documented humectant and anti-irritant properties. Reduces surfactant-induced irritation in cleansers.
Cautions
Very well tolerated. Non-irritating. Can reduce the irritation potential of surfactants when included in cleansers.
What does Betaine do for skin?
Betaine is used in skincare primarily as a humectant ingredient. Its effects depend on concentration and formulation. Check the benefits section above for specific details.
Is Betaine safe for sensitive skin?
Betaine is generally well-tolerated, but sensitivity varies by individual. Start with a patch test if you have reactive skin, and introduce gradually into your routine.
Can I use Betaine every day?
For most skin types, daily use is appropriate at standard concentrations. If you experience any irritation, reduce frequency to every other day.
Does your skincare contain Betaine?
Paste your product's ingredient list to check, or create your Skinularity ID for a full routine.
Find Betaine products
Browse skincare products containing Betaine.
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