Is Glycereth-25 PCA Isostearate fungal acne safe?

No, Glycereth-25 PCA Isostearate is considered a trigger for fungal acne (Malassezia) as it typically contains lipids or esters that feed the yeast.

Is Glycereth-25 PCA Isostearate safe for pregnancy?

Yes, Glycereth-25 PCA Isostearate is generally considered safe for use during pregnancy.

Is Glycereth-25 PCA Isostearate vegan?

Yes, Glycereth-25 PCA Isostearate is typically vegan.

Is Glycereth-25 PCA Isostearate comedogenic?

No, Glycereth-25 PCA Isostearate has a low comedogenic rating of 0/5 and is unlikely to clog pores.

Glycereth-25 PCA Isostearate

Pyroter

Good

Safe

Pores

0/5

Irritancy

0/5

FA Safe

❌ No

Pregnancy

✅ Safe

Vegan

✅ Yes

Science & Benefits

Glycereth-25 PCA Isostearate is a complex, non-ionic ester that combines the hydrating power of PCA (a natural skin humectant) with the spreadability of isostearic acid. It functions primarily as a high-performance solubilizer and humectant that enhances the skin’s ability to retain moisture. Unlike traditional emulsifiers, it is exceptionally gentle and does not disrupt the lipid bilayer of the stratum corneum. Its unique structure allows it to effectively disperse oil-soluble vitamins into water-based serums without adding any pore-clogging potential. It is a sophisticated ingredient for 'clean' formulations that require both surfactant properties and intensive, skin-identical hydration.

Safety Alerts

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Fungal Acne: This ingredient is a lipid/ester that can feed Malassezia yeast. Avoid if you have active FA bumps.