Glycerin
HumectantEmollientNaturalAlso known as: Glycerol, Vegetable Glycerin
One of the most effective and well-studied humectants available. A sugar alcohol that draws water from the environment and deeper skin layers to hydrate the surface.
Powerful humectant, strengthens skin barrier, improves skin texture, non-irritating, enhances penetration of other ingredients.
Present in most moisturizers and serums. Can be used at 2-5% in DIY formulations. Apply to damp skin for best results.
One of the most studied humectants with decades of safety and efficacy data. Improves skin hydration, barrier function, and mechanical properties.
Cautions
Very high concentrations (>20%) can feel sticky. In very dry climates, may draw water from skin rather than environment. Always combine with occlusives.
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