What Is Bacillus/Silk/Soybean/Tagetes Erecta Flower Ferment Filtrate?
Bacillus/Silk/Soybean/Tagetes Erecta Flower Ferment Filtrate is a skin-friendly liquid that comes from fermenting three natural materials — silk fibers, soybean seed extract and marigold (Tagetes erecta) flowers — with the help of the Bacillus microorganism. During fermentation the Bacillus breaks down large proteins, sugars and other plant compounds into smaller pieces that are easier for skin to absorb. The finished filtrate contains lightweight amino acids from silk, soothing peptides from soy and antioxidant molecules from marigold along with helpful enzymes created during the process.
Fermentation has been used in food and skin care for centuries because it makes ingredients gentler and more potent. Korean beauty brands popularized ferment filtrates in modern cosmetics, inspiring formulators worldwide to look beyond traditional extracts. This particular blend was developed to combine the softness of silk, the conditioning power of soy and the brightening properties linked to marigold flowers, then deliver them in a single fermented fluid.
The process starts by soaking silk cocoons, soybean meal and dried marigold petals in a nutrient solution. Bacillus bacteria are added and the mixture is kept at a warm controlled temperature for several days. After fermentation the liquid is filtered to remove solids, leaving a clear or slightly amber filtrate ready for use in skin care.
You will most often see this ingredient in lightweight creams, hydrating serums, soothing masks, anti-aging lotions and after-sun gels where it helps soften the skin and improve overall texture without feeling heavy.
Bacillus/Silk/Soybean/Tagetes Erecta Flower Ferment Filtrate’s Cosmetic Benefits/Uses
This ferment filtrate earns its place in formulas thanks to the following actions
- Skin conditioning: Helps skin feel smoother and more supple, supports a healthy moisture balance and can boost radiance over time
- Emollient: Fills in tiny gaps on the skin surface to create a softer touch and to reduce rough flaky patches
Who Can Use Bacillus/Silk/Soybean/Tagetes Erecta Flower Ferment Filtrate
This ferment filtrate is light and non greasy so it suits most skin types including normal, dry, combination and oily. Its soothing properties make it a good option for sensitive skin as well, although anyone with a known allergy to soy or plants in the daisy family should proceed with caution because the ingredient contains soybean proteins and marigold flower compounds that could trigger a reaction.
The presence of silk proteins means the ingredient is derived from silkworm cocoons, so it is not considered vegan or vegetarian friendly. Consumers who avoid all animal derived materials will want to choose an alternative.
No data indicate that topical use of this ferment poses a special risk to women who are pregnant or breastfeeding. Still, this is not medical advice and anyone who is expecting or nursing should ask a healthcare professional before adding new skincare products to their routine.
The filtrate does not increase the skin’s sensitivity to sunlight and can be used day or night without raising the risk of sunburn. Routine daytime sun protection is always recommended for general skin health.
Potential Side Effects/Adverse Reactions
Individual responses to Bacillus/Silk/Soybean/Tagetes Erecta Flower Ferment Filtrate can vary. The effects listed below are possible but uncommon when the ingredient is incorporated properly in a finished cosmetic formula.
- Allergic reaction in people sensitive to soy proteins
- Allergic reaction in people sensitive to marigold or other Asteraceae plants
- Mild redness or stinging on very reactive or compromised skin
- Rare contact dermatitis from exposure to silk peptides
- Irritation if applied to broken or freshly exfoliated skin
If any unwanted reaction occurs discontinue use and seek medical advice if symptoms persist or worsen.
Comedogenic Rating
Rating: 1 / 5
This ferment filtrate is water based and contains mostly lightweight amino acids, peptides and small plant molecules rather than heavy oils or waxes that could block pores. While a tiny amount of natural lipids from soy may remain after fermentation they are present in such low levels they rarely contribute to clogged follicles. Because of this the ingredient earns a low comedogenic score of 1.
Suitable for acne-prone or breakout-prone skin
If the finished product combines this ferment with richer butters, oils or silicones the overall formula could still be pore clogging so always consider the full ingredient list.
Summary
Bacillus/Silk/Soybean/Tagetes Erecta Flower Ferment Filtrate works mainly as a skin conditioner and emollient. Fermentation breaks silk, soy and marigold compounds into tiny fragments that can penetrate the upper layers of skin, deliver hydration, smooth rough texture, support a healthy moisture barrier and supply protective antioxidants. The result is softer, calmer and more radiant skin without heaviness.
Although not as common as ingredients like hyaluronic acid or niacinamide, this ferment has carved out a niche in Korean inspired formulas and is slowly appearing in mainstream serums and creams.
Current data show it is generally safe for topical use with the main cautions being possible plant or soy allergies and its non-vegan origin. As with any new skincare ingredient it is wise to perform a small patch test before regular use, especially if your skin is sensitive.