Lactococcus ferment lysate is a skincare ingredient derived from the fermentation of Lactococcus bacteria. This lysate is used in cosmetics and personal care products for its beneficial properties related to skin conditioning, soothing, and enhancing the skin's natural barrier.

Chemical Composition and Structure: Lactococcus ferment lysate contains a range of bioactive compounds resulting from the fermentation process, including:

Proteins: Enzymes and peptides released during fermentation that can help to improve skin texture and elasticity.
Polysaccharides: Carbohydrates that contribute to hydration and form a protective layer on the skin.
Lactic Acid: An alpha-hydroxy acid (AHA) that provides mild exfoliation and helps to maintain skin moisture levels.
Vitamins: Such as Vitamin B12, which supports skin health and helps to maintain a healthy complexion.
Organic Acids: Like lactic acid, which aids in skin exfoliation and renewal.

The chemical structure of these compounds includes peptide chains, polysaccharide chains, and various organic acids that contribute to the lysate’s efficacy.

Physical Properties:

Appearance: Typically a clear to slightly opaque liquid or gel-like substance.
Odor: Mildly fermented or neutral.
Density: Generally light and non-greasy.
Solubility: Completely soluble in water, making it compatible with aqueous formulations.

Production Process: The production of Lactococcus ferment lysate generally involves the following steps:

Fermentation: Lactococcus bacteria are cultured in a controlled environment, allowing them to ferment the media and produce various bioactive compounds.
Lysis: The bacterial cells are lysed (broken down) to release their contents into the fermentation media.
Filtration: The lysate is filtered to remove cellular debris, resulting in a clear or slightly opaque liquid.
Standardization: The lysate may be standardized to ensure consistent levels of active compounds and quality.

Applications:

Cosmetics: Used in skincare products for its skin-conditioning and soothing properties. It helps to improve the overall texture and health of the skin.
Serums and Creams: Incorporated into serums and creams to enhance skin hydration, support the skin barrier, and promote a smoother complexion.
Sensitive Skin Products: Added to products formulated for sensitive skin to help calm and protect the skin.

Environmental and Safety Considerations:

Environmental Impact: The fermentation and production of Lactococcus ferment lysate should be managed responsibly to minimize environmental impact. Sustainable practices in production are important to reduce ecological footprint.
Safety: This ingredient is generally regarded as safe for use in cosmetics and personal care products when used as directed. Individuals with allergies or very sensitive skin should use caution.

INCI Functions:


Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.
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