Is Pentaerythrityl Tetraisostearate fungal acne safe?

Yes, Pentaerythrityl Tetraisostearate is generally considered safe for fungal acne-prone skin.

Is Pentaerythrityl Tetraisostearate safe for pregnancy?

Yes, Pentaerythrityl Tetraisostearate is generally considered safe for use during pregnancy.

Is Pentaerythrityl Tetraisostearate vegan?

No, Pentaerythrityl Tetraisostearate is typically derived from animal sources.

Is Pentaerythrityl Tetraisostearate comedogenic?

No, Pentaerythrityl Tetraisostearate has a low comedogenic rating of 2/5 and is unlikely to clog pores.

Pentaerythrityl Tetraisostearate

Crodamol PTIS

Good

Safe

Pores

2/5

Irritancy

0/5

FA Safe

✅ Yes

Pregnancy

✅ Safe

Vegan

❌ No

Science & Benefits

A branched-chain tetraester that provides a 'cushioned,' luxurious skin feel similar to lanolin but without the comedogenicity. It forms a breathable, water-resistant barrier. While rated 2 for comedogenicity, it is safe for most. In an acne context, it is a 'logic winner' for recovering skin post-Accutane or for severely dehydrated barriers, as it provides substantive emolliency without being metabolized by C. acnes.

Safety Alerts

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Non-Vegan: This ingredient is typically derived from animal sources (e.g. beeswax, lanolin, carmine).