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Polyglyceryl-2 Isostearate

What Polyglyceryl-2 Isostearate is & what it does

Polyglyceryl-2 Isostearate is a non-ionic emulsifier made by joining isostearic acid to a short polyglycerol backbone. In a skincare or sunscreen formula it helps blend the oil and water phases into a stable emulsion and can give the product a smooth, soft feel. It is a glyceryl-ester surfactant often chosen as a gentler, polyethylene-glycol-free alternative for emulsifying creams and lotions.

What does Polyglyceryl-2 Isostearate do in skincare?

It works mainly as a non-ionic emulsifier, helping the oil and water parts of a cream or sunscreen blend into a stable mixture. It can also improve the texture, giving products a smooth, soft feel. It is a polyethylene-glycol-free alternative to some other emulsifiers.

Is Polyglyceryl-2 Isostearate natural or synthetic?

It is best described as semi-synthetic. It is made by chemically combining isostearic acid with a polyglycerol backbone, and these building blocks can come from plant or synthetic sources. The finished ingredient is processed rather than used in its raw natural form.

Is Polyglyceryl-2 Isostearate vegan?

It can be vegan, because its starting materials, isostearic acid and glycerol, may be derived from plant oils. However, fatty acids and glycerol can also come from animal sources, so the vegan status depends on the specific supplier. Check with the brand if this matters for your choice.

Sunscreens with Polyglyceryl-2 Isostearate

We rate 32 sunscreens that contain it, showing the top 10 by overall score:

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