What Is Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate?
Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate is a liquid derived from fermenting broccoli extract with two friendly bacteria strains, Lactobacillus and Leuconostoc. During fermentation the microbes break down the plant material and release smaller molecules like amino acids, peptides, sugars, lactic acid and antioxidants that are easier for skin to use. The finished mixture is then carefully filtered to remove the bacteria and any solids, leaving a clear bioactive filtrate.
Broccoli itself is rich in vitamins A, C and K along with sulfur-containing compounds such as sulforaphane, which are valued for their antioxidant properties. Fermentation boosts the availability of these nutrients while also adding skin-loving postbiotic substances produced by the microbes.
The popularity of fermented ingredients in food sparked interest in using similar technology for skincare in the early 2010s. Brands looking for gentle yet effective alternatives to harsh preservatives and synthetic actives began experimenting with probiotic ferment filtrates, leading to the inclusion of this broccoli version in modern formulas.
To make the filtrate, fresh or freeze-dried broccoli is extracted with water or a mild solvent, sterilized, inoculated with a controlled culture of Lactobacillus and Leuconostoc, and left to ferment under strict temperature and pH conditions. After several days the mixture is filtered and standardized for use in cosmetics.
You will most often find Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate in hydrating toners, daily moisturizers, soothing sheet masks, anti-aging serums and leave-on treatments designed for sensitive or dull skin.
Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate’s Cosmetic Benefits/Uses
This ferment filtrate brings a mix of hydration and skin-soothing properties that enhance many types of personal care products.
- Humectant – attracts water from the environment and binds it to the upper layers of skin, helping formulas deliver lasting moisture and leaving skin feeling plump and comfortable
- Skin conditioning – supplies vitamins, antioxidants and gentle acids that smooth the skin surface, support a healthy barrier and improve overall softness and resilience
Who Can Use Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate
This ferment filtrate suits most skin types. Its light watery texture and humectant action make it ideal for dry or dehydrated skin, while the absence of heavy oils means oily and combination skin can enjoy it without feeling greasy. Sensitive skin often tolerates it well thanks to the soothing postbiotics, though anyone with a known broccoli or cruciferous vegetable allergy should steer clear.
Because the ingredient is derived entirely from plant matter and benign bacteria it meets vegan and vegetarian standards. No animal products or by-products are used during fermentation or extraction.
Current research shows no specific risks for women who are pregnant or breastfeeding when this ferment is applied topically. Still, this is not medical advice and those who are expecting or nursing should review any skincare routine with their doctor to be safe.
The filtrate does not increase photosensitivity so daytime use without added sun risk is fine. It also layers well with common actives like niacinamide, peptides and hyaluronic acid.
Potential Side Effects/Adverse Reactions
Reactions to topical Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate vary from person to person. The points below describe potential side effects only; most users will not experience them when the ingredient is formulated and stored correctly.
- Allergic contact dermatitis – redness, itching or rash in individuals allergic to broccoli or other brassica vegetables
- Mild stinging or irritation – possible in very sensitive skin due to natural acids and low pH
- Breakouts – rare pimples if the finished product contains occlusive ingredients that trap oil and debris
- Microbial contamination issues – unlikely but possible if a DIY or poorly preserved product allows unwanted bacteria to grow
If any adverse effect is observed stop using the product and seek advice from a healthcare professional.
Comedogenic Rating
Rating: 0 / 5
Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate is a lightweight water-based ingredient with no heavy oils or waxes that could block pores, so it is considered non-comedogenic. Its humectant molecules sit on the skin surface or draw moisture inward rather than forming an occlusive film. This makes it suitable for people who are prone to acne or breakouts.
Keep in mind that a finished product’s full formula matters; rich creams containing this ferment plus thick butters or silicones could still feel clogging on oily skin even though the ferment itself is not.
Summary
Lactobacillus/Leuconostoc/Broccoli Extract Ferment Filtrate acts mainly as a humectant and skin-conditioning agent. Fermentation releases small sugars, amino acids, lactic acid and antioxidants that pull water into the outer layers of skin, smooth texture and support the barrier. The ingredient has gained steady popularity as brands explore probiotic and postbiotic trends, though it is still less common than staples like hyaluronic acid.
Topical use is regarded as very safe with low risk of irritation or pore clogging. As with any new skincare ingredient it is wise to do a quick patch test when trying a product that features this ferment to confirm personal tolerance.