What Is Lactobacillus/Coriandrum Sativum Seed Ferment Filtrate?
Lactobacillus/Coriandrum Sativum Seed Ferment Filtrate is a liquid derived from coriander seeds that have been naturally fermented with the help of the friendly bacteria Lactobacillus. The process starts with crushing or milling coriander seeds to expose their nutrients, then combining them with a culture of Lactobacillus under controlled warmth and moisture. During fermentation the bacteria break down sugars, proteins and oils in the seeds into smaller, skin friendly molecules and release helpful by-products like peptides and mild acids. After fermentation the mixture is carefully filtered to remove solids and microbes, leaving a clear or slightly hazy fluid packed with water-soluble nutrients.
The idea of using fermented plant extracts in beauty care gained traction in Korean skin care labs in the early 2000s. Researchers noted that fermentation not only boosts the bioavailability of plant compounds but also lowers the risk of irritation. Coriander was chosen for its natural antioxidants and trace minerals while Lactobacillus was selected because it produces soothing post-biotics. As demand for gentle yet effective ingredients grew, this filtrate began appearing in formulations marketed for sensitive and dull skin.
Today you will most often spot Lactobacillus/Coriandrum Sativum Seed Ferment Filtrate in hydrating toners, light lotions, sheet masks, overnight masks, anti-aging serums and after-sun treatments. Because it is water based it slips easily into both gel and cream textures and pairs well with humectants like glycerin or hyaluronic acid.
Lactobacillus/Coriandrum Sativum Seed Ferment Filtrate’s Cosmetic Benefits/Uses
Formulators choose this ferment for one key reason
Skin conditioning: The filtrate is rich in amino acids and mild organic acids that help attract and hold moisture on the skin surface, leaving it softer and smoother. The post-biotics produced during fermentation can also support a balanced skin microbiome which may reduce feelings of irritation or tightness, giving skin a calm comfortable look and feel.
Who Can Use Lactobacillus/Coriandrum Sativum Seed Ferment Filtrate
This ferment is gentle enough for most skin types. Dry skin enjoys the light boost of moisture, oily and combination skin appreciate that it hydrates without heaviness and sensitive skin often finds the post-biotics soothing. There are no known reasons it would be unsuitable for acne-prone or mature skin either.
The ingredient is plant-derived and produced with friendly bacteria, so it fits vegan and vegetarian lifestyles. No animal by-products are used during fermentation or filtration.
Current research shows no specific risks for pregnant or breastfeeding women when the filtrate is used in a cosmetic formula. Still, this is not medical advice and anyone who is pregnant or nursing should check with a doctor before adding new products, just to be safe.
Lactobacillus/Coriandrum Sativum Seed Ferment Filtrate does not make skin more sensitive to sunlight, so it is not considered photosensitizing. Of course daily sunscreen is always wise for overall skin health.
Potential Side Effects/Adverse Reactions
Side effects can vary from person to person. The points below list potential reactions, yet most people will not run into these issues when the ingredient is used correctly in a finished product.
- Mild redness or stinging in very reactive skin
- Allergic contact dermatitis if someone is allergic to coriander or other seed extracts
- Breakouts in rare cases if a formula containing the ferment also includes other pore-clogging ingredients
If irritation, rash or any unexpected reaction occurs, stop use and consult a healthcare professional.
Comedogenic Rating
Rating: 0/5. This filtrate is almost entirely water and water-soluble nutrients with virtually no heavy oils or waxes that could block pores. Fermentation further breaks down any residual seed lipids into smaller molecules that rinse away easily, so there is minimal risk of clogging. Suitable for people who are prone to acne or frequent breakouts. Because it is microbiome friendly it may even help keep blemish-causing bacteria in check.
Summary
Lactobacillus/Coriandrum Sativum Seed Ferment Filtrate is mainly used to condition skin by drawing in moisture and delivering calming post-biotic compounds created during fermentation. Its gentle nature and light texture let it slip into hydrating toners, serums and masks without weighing skin down, making it a quiet favorite in Korean inspired formulations while still relatively under-the-radar in Western lines.
Current evidence shows it is safe for most users with a very low risk of irritation or pore blockage. As with any new skincare ingredient it is wise to patch test a fresh product first to make sure your skin agrees with it.