Polysorbate 21
A non-ionic emulsifier and solubilizer. It blends oil and water and dissolves fragrance and actives. Well tolerated.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Polysorbate 21 (INCI: Polysorbate 21) is a nonionic emulsifier and solubilizer. It binds oil and water and dissolves fragrance and poorly soluble actives, which keeps the formula even and stable. This is a functional ingredient, not a skincare active. Its work is in the structure of the product, not in a direct skin benefit. It should not be judged as a skincare active. Because of its topical use and lack of systemic relevance, it can be used during pregnancy and breastfeeding without concern. Tolerance is high. It is a mild surfactant, with low irritation and allergy potential, comfortable on sensitive skin. Most skin does not react.
Frequently asked questions
Is Polysorbate 21 safe during pregnancy?
Polysorbate 21 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Polysorbate 21 for?
Polysorbate 21 suits: normal, dry, combination, oily, sensitive.
What is Polysorbate 21 and what does it do in cosmetics?
A non-ionic emulsifier and solubilizer.
What's the INCI name for Polysorbate 21?
The INCI name is Polysorbate 21.
See Polysorbate 21 in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
Other functional ingredients
Polysorbate 40, Polysorbate 60, Polysorbate 80, Polyurethane-64, Stearyl Beeswax, C30-45 Alkyl Methicone, Ethoxydiglycol, Octyldodecanol
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