Is Leuconostoc Ferment Filtrate fungal acne safe?

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

Is Leuconostoc Ferment Filtrate safe for pregnancy?

Yes, Leuconostoc Ferment Filtrate is generally considered safe for use during pregnancy.

Is Leuconostoc Ferment Filtrate vegan?

Yes, Leuconostoc Ferment Filtrate is typically vegan.

Is Leuconostoc Ferment Filtrate comedogenic?

No, Leuconostoc Ferment Filtrate has a low comedogenic rating of 0/5 and is unlikely to clog pores.

Leuconostoc Ferment Filtrate

Radish Root Ferment Filtrate

Good

Safe

Pores

0/5

Irritancy

0/5

FA Safe

❌ No

Pregnancy

✅ Safe

Vegan

✅ Yes

Science & Benefits

Leuconostoc Ferment Filtrate is derived from the bacterium used in the production of kimchi. It contains natural peptides that exhibit broad-spectrum antimicrobial activity. In 2026 formulations, it is the primary choice for 'clean' preservation. Beyond its role as a stabilizer, it acts as a gentle humectant that maintains skin hydration levels. It is zero-comedogenic and exceptionally well-tolerated by sensitive skin. For acne patients, it provides a 'microbiome-safe' preservation system that protects the product from contamination while supporting the skin's natural acidic defense barrier.

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.