New Trends in Cosmetic Preservative Ingredients - ε - Polylysine

Time : 2025.03.14 Page View : 338 Author : Alice

In the pursuit of beauty and health, the safety and efficacy of cosmetics have always been the focus of people's attention. In recent years, a magical substance called polylysine has quietly entered the cosmetics preservatives field. With its unique properties and excellent performance, it has gradually become a rising star in the eyes of many cosmetics developers.

Polylysine is fermented by white streptococci and is a natural, safe, non-chemical preservative. It has a significant inhibitory effect on Gram-positive bacteria, Gram-negative bacteria and yeast. Compared with synthetic chemical preservatives, E-polylysine is safe, and its monomer is one of the eight most common amino acids in the human body. It has advantages that chemical preservatives cannot match, such as strong antibacterial properties, safety and non-toxicity, good water solubility, good thermal stability, and a wide range of action.

Excellent antibacterial properties

Polylysine has strong and broad-spectrum antibacterial ability, which can effectively inhibit the growth of a variety of bacteria, fungi and yeast. In cosmetics, microbial contamination is a major problem, which not only affects the stability of the product, but also may pose a threat to the skin health of users. The presence of polylysine is like a loyal guard, which interferes with the cell membrane function and protein synthesis of microorganisms to prevent them from breeding and multiplying in cosmetics. For example, in products rich in nutrients such as lotions and creams, it is easy to become a hotbed for microorganisms. After adding polylysine, the shelf life of the product can be significantly extended, ensuring that consumers are protected from the risks of microbial contamination during use, such as allergies and infections, so that the skin is always in a safe and healthy care environment.

Good biocompatibility

Cosmetics are in direct contact with the skin, and the compatibility of its ingredients with the skin is crucial. Polylysine has excellent biocompatibility. Polylysine is compatible with sodium hyaluronate. On the one hand, polylysine can ensure the microbial stability of the product, prevent microbial degradation of sodium hyaluronate, and maintain its moisturizing effect. On the other hand, the two work synergistically to provide all-round care for the skin from the two aspects of antibacterial and moisturizing, making the skin hydrated and healthy. In products such as essences and masks, this combination can significantly improve the skin's moisturizing effect and enhance product stability.

Unique moisturizing and repairing effects

Polylysine has unique moisturizing properties. It can attract and lock moisture on the surface of the skin, forming a moisturizing film to reduce moisture loss. This is essential for maintaining the moisture and elasticity of the skin, especially in a dry environment. It can effectively prevent problems such as dryness and roughness of the skin due to lack of water. In addition, polylysine also has a certain repair effect on damaged skin cells. When the skin is damaged by external stimuli (such as ultraviolet rays, pollution, etc.), polylysine can promote cell metabolism, accelerate the repair and regeneration of damaged cells, and help the skin return to a healthy state. Long-term use of cosmetics containing polylysine can make the skin glow with natural radiance and present a healthier and younger state.

Share to