Lactococcus Ferment Lysate (Probiotic)

This aqueous lysate from fermented Lactococcus bacteria is a probiotic-derived cosmetic ingredient and humectant. It boosts surface hydration, supports a resilient-feeling barrier, and reduces the look of irritation.
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Snapshot

Overview
A probiotic ferment that hydrates skin and calms irritation.
Category
Barrier Support, Soothing, Skin Conditioning
Type
Humectant

Ratings

Overall Rating

Good

Comedogenic Risk

None

Not typically evaluated for comedogenicity — no standardized rating available.

Is Lactococcus Ferment Lysate (Probiotic) a Good Ingredient?

Rated Good because lysates like this show emerging evidence for improving hydration and supporting barrier-related markers, with generally low irritation. The data in cosmetics is promising but not as extensive as for well-established humectants, which keeps it at Good rather than Great.

Skin Benefits

Helps skin hold onto water so it feels smoother and more comfortable. May support a balanced skin ecosystem, which can reduce the sensation of reactivity.

Uses in Skincare & Cosmetics

Often included in serums, essences, and moisturizers aimed at sensitive or dryness-prone skin. Also found in post-cleanse mists to add quick, breathable hydration.

Safety

Typically well tolerated with a low irritation profile; patch test if skin is highly reactive or compromised. No widely recognized regulatory restrictions for cosmetic use.