What Is Lactobacillus/Saccharomyces Silkworm Extract Ferment Filtrate?
Lactobacillus/Saccharomyces Silkworm Extract Ferment Filtrate is a skin care ingredient made by fermenting silkworm extract with two friendly microorganisms, Lactobacillus and Saccharomyces. Silkworm extract is naturally rich in proteins called sericins and fibroins that help keep moisture in the skin. During fermentation these proteins are broken into smaller pieces, making them easier for skin to take in and boosting their antioxidant power. The final filtrate also contains vitamins, amino acids and natural organic acids produced by the microbes, all of which add extra skin loving benefits.
Fermenting animal or plant extracts is not new; Korean beauty brands popularized the practice to enhance absorption and gentleness. As interest in microbiome friendly skin care grew, formulators looked for novel sources of protein and antioxidants, and the humble silkworm fit the bill. Today the ingredient is produced in controlled tanks where silkworm extract is mixed with the two microbes, left to ferment, then filtered to remove solids and bacteria, leaving a clear liquid concentrate ready for cosmetic use.
You will typically find Lactobacillus/Saccharomyces Silkworm Extract Ferment Filtrate in hydrating essences, sheet masks, anti aging serums, lightweight moisturizers and soothing after sun gels. Its multitasking nature also makes it popular in eye creams and overnight sleeping packs.
Lactobacillus/Saccharomyces Silkworm Extract Ferment Filtrate’s Cosmetic Benefits/Uses
This ferment brings several helpful actions to a skin care formula
- Antioxidant – Helps neutralize free radicals created by UV light and pollution which can otherwise lead to dullness and early signs of aging. This support keeps skin looking brighter and more even
- Skin Conditioning – The broken down proteins, amino acids and natural sugars bind water to the surface of the skin, leaving it soft, smooth and comfortably hydrated without a heavy feel
- Skin Protecting – Forms a light breathable film that reduces moisture loss and supports the skin’s own barrier making it more resilient to daily stressors like wind and temperature swings
Who Can Use Lactobacillus/Saccharomyces Silkworm Extract Ferment Filtrate
This ferment filtrate suits most skin types. Dry and mature skin appreciate the extra moisture while normal and combination skin enjoy its light feel. Sensitive skin generally tolerates it because fermentation lowers the chance of irritation. Oily or acne prone skin can also benefit since the ingredient is water based and not greasy, though individual reactions vary.
Because the raw material comes from silkworms it is not considered vegan or vegetarian friendly. Anyone avoiding animal derived ingredients will want to skip products that list this filtrate.
No data suggest special risks for women who are pregnant or breastfeeding when using the ingredient topically. Still this is not medical advice and those who are expecting or nursing should review any skincare product with their doctor to stay on the safe side.
The filtrate does not increase photosensitivity so it can be used morning or night without raising sunburn risk, although daily sunscreen is always a smart habit.
Potential Side Effects/Adverse Reactions
Side effects from topical use of Lactobacillus/Saccharomyces Silkworm Extract Ferment Filtrate differ from person to person. The points below outline potential issues yet most users will not experience them when the ingredient has been formulated and stored properly.
- Allergic response to silk proteins such as redness itching or hives
- Stinging or burning on very sensitive or compromised skin
- Breakouts if combined with highly occlusive products that trap heat and sweat
- Spoilage related irritation if the final product is contaminated or past its shelf life
If any unwanted reaction occurs stop use right away and consult a healthcare professional if symptoms persist or worsen
Comedogenic Rating
Rating: 0 / 5 (non comedogenic)
The filtrate is almost entirely water soluble and contains broken down proteins, amino acids and light organic acids rather than heavy oils or waxes. It forms a breathable film that does not trap sebum so it is very unlikely to block pores. That makes it a comfortable choice for people who struggle with congestion or blemishes.
As always the finished product matters. If the formula pairs this ferment with rich butters or silicones the overall pore clogging potential can rise so check the full ingredient list when acne is a concern.
Summary
Lactobacillus/Saccharomyces Silkworm Extract Ferment Filtrate delivers three key benefits: antioxidant support that helps fend off dullness, skin conditioning through moisture binding peptides and sugars, and a protective veil that reinforces the skin barrier. Fermentation breaks large silk proteins into smaller fragments making them easier for skin to absorb while friendly microbes add extra vitamins and organic acids.
Right now the ingredient enjoys moderate popularity in Korean and indie brands but is still a relative newcomer in mainstream Western lines. Fans appreciate its feather light feel and multitasking nature so its presence will likely keep growing.
Topical use is considered low risk for most people with the main caution being its animal origin for those who want vegan products. While irritation is rare it is smart to perform a quick patch test whenever you try a new formula that contains this or any other active.