Glycerin

글리세린

Goodhumectant

A humectant that draws moisture into the skin.

What is Glycerin?

CAS Number

56-81-5

Formula

C3H8O3

Molecular Weight

92.09 g/mol

Also known as: glycerol, glycerin, Glycerine, Glycyl alcohol, Trihydroxypropane

What does Glycerin do for skin?

Glycerin acts as a potent humectant, attracting and binding water from the atmosphere and deeper epidermal layers into the stratum corneum, significantly increasing skin hydration. It also plays a crucial role in maintaining skin barrier function by facilitating water transport through aquaglyceroporins (primarily AQP3) in keratinocytes, which contributes to proper cell maturation and normal desquamation.

Typical concentration: Typically used at 1-10% in most cosmetic formulations, with common usage around 3-5%. It can be found at concentrations up to 40% or higher in specialized products for intense hydration or as a cosolvent.

Is Glycerin safe?

Glycerin is widely recognized as safe (GRAS) by the FDA for topical use and exhibits very low potential for skin irritation or sensitization. The CIR Expert Panel concluded glycerin is safe in cosmetic formulations at concentrations up to 79.9%.

What does the research say about Glycerin?

Regulatory Info

Status: Restricted
All Ingredients

Frequently Asked Questions

What does Glycerin do in skincare?+

A humectant that draws moisture into the skin. Glycerin acts as a potent humectant, attracting and binding water from the atmosphere and deeper epidermal layers into the stratum corneum, significantly increasing skin hydration. It also plays a crucial role in maintaining skin barrier function by facilitating water transport through aquaglyceroporins (primarily AQP3) in keratinocytes, which contributes to proper cell maturation and normal desquamation.

Is Glycerin safe for sensitive skin?+

Glycerin is widely recognized as safe (GRAS) by the FDA for topical use and exhibits very low potential for skin irritation or sensitization. The CIR Expert Panel concluded glycerin is safe in cosmetic formulations at concentrations up to 79.9%.

What percentage of Glycerin should I look for?+

Look for products with Typically used at 1-10% in most cosmetic formulations, with common usage around 3-5%. It can be found at concentrations up to 40% or higher in specialized products for intense hydration or as a cosolvent. for clinical efficacy.

Further Reading