Sorbitol
What It Is
A sugar alcohol that functions as a hydrating agent. It's naturally found in fruits and is often used as a humectant and thickener in skincare products.
Key Functions
- Attracts water to the skin
- Provides gentle hydration
- Helps stabilize formulations
- Natural alternative to synthetic humectants
Quick Facts
Humectant
Hydration
Safety Profile:
Excellent safety profile
Safe during pregnancy and breastfeeding
Very low risk of sensitivity
Ingredient Penetration Depths
Understanding how deep skincare ingredients can reach
Stratum Corneum
Outermost protective layer
High MW Hyaluronic Acid
Mineral Sunscreens
Silicones
Ceramides
Epidermis
Living skin cells, no blood vessels
Medium MW Hyaluronic Acid
Niacinamide
Vitamin C Derivatives
AHAs (Glycolic Acid)
Dermis
Collagen, elastin, blood vessels
Low MW Hyaluronic Acid
Retinol
Peptides
L-Ascorbic Acid
Factors Affecting Penetration
Molecular Weight
Smaller molecules (under 500 Da) penetrate deeper. The 500 Da rule states that molecules larger than this rarely penetrate beyond the stratum corneum.
Formulation
Delivery systems like liposomes, nanoparticles, and certain solvents can help larger molecules penetrate deeper into skin layers.
Skin Condition
Damaged or compromised skin barriers allow deeper penetration, while intact barriers are more selective about what passes through.
Safety Profile
General Safety
Excellent safety profile
Safe during pregnancy and breastfeeding
Very low risk of sensitivity
Frequently Asked Questions
Is Sorbitol safe for all skin types?
Sorbitol is generally excellent safety profile. It's particularly suitable for all skin types, natural formulations.
How does Sorbitol hydrate the skin?
As a humectant, Sorbitol works by attracting water molecules from the environment and deeper skin layers to the surface, providing hydration. A sugar alcohol that functions as a hydrating agent. It's naturally found in fruits and is often used as a humectant and thickener in skincare products.
Should I apply Sorbitol to dry or damp skin?
For best results, apply products containing Sorbitol to slightly damp skin. This gives the humectant water molecules to bind to, maximizing its hydrating effects.
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Hyaluronic Acid
Hyaluronic acid is a naturally occurring substance in the human body that has the remarkable ability to hold up to 1,000 times its weight in water. This makes it an exceptional humectant for skincare applications, providing intense hydration and helping to maintain skin plumpness and elasticity.
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A common and effective humectant that draws water from the environment and deeper skin layers to the surface. It also helps to strengthen the skin's barrier function.
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A synthetic alcohol that acts as a humectant and enhances product penetration. It helps to keep products from melting in heat or freezing when cold.
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