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Isopropylphthalimide

What Isopropylphthalimide is & what it does

Isopropylphthalimide is a synthetic phthalimide derivative closely related to butylphthalimide, carrying an isopropyl group on the nitrogen. It is generally used as a plasticizer that improves the flexibility and durability of film-forming systems, for example in nail products. Like its butyl counterpart it is an oil-compatible, laboratory-made ingredient.

What does Isopropylphthalimide do in skincare?

Isopropylphthalimide is typically used as a plasticizer that improves the flexibility and durability of film-forming systems, for example in nail products. It is not a common active in everyday facial skincare.

Is Isopropylphthalimide natural or synthetic?

It is synthetic. It is a man-made phthalimide derivative, closely related to butylphthalimide, and is not sourced from plants or animals.

Is Isopropylphthalimide vegan?

Being a fully synthetic ingredient with no animal-derived components, it is generally regarded as vegan-friendly. The overall product still needs to be assessed on its full formula.

Sunscreens with Isopropylphthalimide

We rate 7 sunscreens that contain it:

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