Is Polyepsilon-Lysine fungal acne safe?

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

Is Polyepsilon-Lysine safe for pregnancy?

Yes, Polyepsilon-Lysine is generally considered safe for use during pregnancy.

Is Polyepsilon-Lysine vegan?

Yes, Polyepsilon-Lysine is typically vegan.

Is Polyepsilon-Lysine comedogenic?

No, Polyepsilon-Lysine has a low comedogenic rating of 0/5 and is unlikely to clog pores.

Polyepsilon-Lysine

ε-Polylysine

Good

Safe

Pores

0/5

Irritancy

0/5

FA Safe

❌ No

Pregnancy

✅ Safe

Vegan

✅ Yes

Science & Benefits

Polyepsilon-Lysine is a naturally derived polymer of the essential amino acid L-lysine, produced via fermentation. It is unique in that it functions as both a powerful humectant and a broad-spectrum antimicrobial agent. It helps to stabilize the skin microbiome by inhibiting the growth of harmful bacteria without the harshness of synthetic preservatives. Its cationic nature allows it to bind effectively to the negatively charged skin surface, providing long-lasting hydration. It is zero-comedogenic and zero-irritant, making it a 'bulletproof' choice for sensitive, acne-prone skin that requires microbiome-friendly preservation.

Safety Alerts

🍄

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