Researched by Helena DeMaria-Williams
Formula IngredientHumectantPolyglycerin-3
INCI: Polyglycerin-3
Polyglycerin-3 is a moisturising ingredient made up of three glycerin molecules linked together (also known as triglycerol). Its larger molecular structure compared to standard glycerin means it penetrates the skin more slowly, delivering a gentler, longer-lasting humectant effect. It draws water into the stratum corneum, helps maintain the skin barrier, and is widely used in serums, essences, toners, and masks.
Category
Humectant
Irritation Risk
Low
Skin Types
all skin types, dry, dehydrated, sensitive, oily, acne-prone, combination
What does this do in a formula?
humectancy, long-lasting moisturisation, skin barrier support, gentle hydration, improved skin texture
Is Polyglycerin-3 safe? Key considerations
Can Polyglycerin-3 cause irritation?
Low RiskPolyglycerin-3 is a derivative of glycerin, one of the least irritating cosmetic ingredients. It is well-tolerated by all skin types including sensitive skin. No EU CosIng Annex II or III restrictions apply. Its slower absorption rate means it is even less likely to cause transient stinging compared to pure glycerin.
Does Polyglycerin-3 increase sun sensitivity?
No RiskPolyglycerin-3 is a humectant and does not increase photosensitivity. No sun protection precautions are required based on its presence in a formulation.
Is Polyglycerin-3 safe during pregnancy?
SafeMANUAL REVIEW: No dedicated pregnancy safety data found in EWG Skin Deep or MotherToBaby databases for polyglycerin-3 specifically. Based on its structural similarity to glycerin (a universally regarded safe cosmetic ingredient), it is generally considered safe during pregnancy. Consult a healthcare provider if in doubt.
How does Polyglycerin-3 work?
Polyglycerin-3 is a moisturising ingredient made up of three glycerin molecules linked together (also known as triglycerol). Its larger molecular structure compared to standard glycerin means it penetrates the skin more slowly, delivering a gentler, longer-lasting humectant effect. It draws water into the stratum corneum, helps maintain the skin barrier, and is widely used in serums, essences, toners, and masks.
Which products contain Polyglycerin-3?
Shop products that contain Polyglycerin-3
