What Is Leuconostoc/Passiflora Edulis Pulp/Soy Protein Ferment Lysate Filtrate?
Leuconostoc/Passiflora Edulis Pulp/Soy Protein Ferment Lysate Filtrate is a skin care ingredient born from fermentation. It starts with two plant sources: soy protein and the juicy pulp of passion fruit (Passiflora edulis). These materials are mixed and allowed to ferment with Leuconostoc, a friendly lactic acid bacterium often used in food pickling. During fermentation the bacteria break down the large plant proteins and sugars into smaller pieces such as peptides, amino acids and natural moisturising sugars. After fermentation the mix is gently lysed to release even more beneficial compounds, then filtered to create a clear liquid known as the lysate filtrate.
Interest in fermented beauty ingredients grew as Korean and Japanese brands showed how fermentation could make nutrients easier for skin to absorb. Labs later combined soy, passion fruit and Leuconostoc to harness the soothing power of soy peptides with the antioxidant glow of passion fruit sugars.
The finished filtrate is water-light so it slips easily into formulas like hydrating toners, sheet masks, creamy moisturisers, daily serums, after-sun gels and gentle anti-age treatments. Its plant-based origin also fits well in “clean beauty” and vegan product lines.
Leuconostoc/Passiflora Edulis Pulp/Soy Protein Ferment Lysate Filtrate’s Cosmetic Benefits/Uses
In skin care this ingredient is prized for one core job.
Skin conditioning: The blend of small peptides, amino acids and sugars helps skin hold onto water, leaving it soft, smooth and comfortable. Regular use can improve the look of dry or rough areas, support a healthier barrier and give a fresh, well-hydrated feel without heaviness.
Who Can Use Leuconostoc/Passiflora Edulis Pulp/Soy Protein Ferment Lysate Filtrate
This ferment filtrate is gentle and water based, making it suitable for most skin types including dry, normal, combination and oily. Its hydrating peptides and sugars add moisture without leaving a greasy film so even acne-prone or sensitive skin usually tolerates it well. People with a known soy allergy should approach with caution, as trace soy proteins may remain after fermentation.
The ingredient is entirely plant derived and cultured with a food grade bacterium, so it fits vegan and vegetarian lifestyles.
No data links the topical use of this ferment with problems during pregnancy or breastfeeding. Still, this is not medical advice and anyone who is pregnant or nursing should show the product label to their healthcare provider before use.
The filtrate does not make skin more sensitive to sunlight, and there are no special daytime restrictions. Standard sunscreen use is still encouraged for overall skin health.
It layers well with most common actives such as vitamin C, niacinamide, retinoids and gentle exfoliating acids, adding a shot of light hydration without interfering with their work.
Potential Side Effects/Adverse Reactions
Responses to topical Leuconostoc/Passiflora Edulis Pulp/Soy Protein Ferment Lysate Filtrate vary from person to person. The effects listed below are only potential outcomes and are unlikely for the average user when the ingredient is formulated and preserved correctly.
- Mild redness or stinging
- Itchiness or tightness on very sensitive skin
- Allergic contact dermatitis in individuals allergic to soy or passion fruit
- Rare bacterial contamination leading to irritation if the finished product is poorly preserved
If any of these reactions occur discontinue use and consult a healthcare professional.
Comedogenic Rating
Rating: 0/5. This filtrate is almost entirely water with tiny peptides, amino acids and sugars that do not clog pores. It contains no heavy oils or waxes and is used at low percentages in formulas, so it sits lightly on the skin and rinses away cleanly. Because of this it is considered non-comedogenic and is suitable for people who are prone to acne or breakouts. If a finished product containing this ferment triggers pimples the culprit is more likely another ingredient in the mix, such as occlusive oils or thick silicones.
Summary
Leuconostoc/Passiflora Edulis Pulp/Soy Protein Ferment Lysate Filtrate is a gentle hydrator that conditions skin by delivering readily absorbed peptides, amino acids and natural sugars produced during fermentation. These small molecules bind water, reinforce the skin barrier and leave the surface feeling soft and smooth without heaviness.
While not as famous as hyaluronic acid or ceramides, the ingredient is gaining quiet traction in K-beauty inspired toners, serums and masks thanks to the current interest in fermented actives and vegan formulations.
Topical use is considered low risk for most people, with soy or passion fruit allergy being the main concern. As with any new skin care product it is smart to patch test first to make sure your skin agrees with the formula.