Lysozyme
What is Lysozyme?
Lysozyme is a naturally occurring enzyme, classified as a glycoside hydrolase, primarily found in human tears, saliva, nasal secretions, and egg whites. This small protein functions by hydrolyzing bonds in bacterial cell walls, exhibiting antimicrobial activity. In cosmetic formulations, especially skincare products like creams, lotions, and serums, it is categorized as a skin conditioning agent. It works by interacting with the skin's surface to help retain moisture, support barrier integrity, and enhance tactile qualities such as softness and suppleness. Often sourced from hen's egg white or produced via microbial fermentation for vegan options, lysozyme integrates into emulsions at trace levels to provide these conditioning effects without altering product texture. Its biocompatibility stems from its presence in bodily fluids, making it suitable for gentle daily use.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Helps maintain skin softness and smoothness.
Supports skin flexibility for a supple feel.
Contributes to overall skin conditioning in formulations.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals with normal to dry skin seeking conditioning. | People with known egg protein allergies. |
| Users preferring natural enzyme-based ingredients. | Individuals sensitive to enzyme-based actives. |
| Those incorporating gentle, low-hazard skincare routines. | Those preferring fully synthetic-free products. |
Safety Notes
- Rated low hazard by environmental working groups.
- Generally well-tolerated in cosmetic concentrations.
Frequently Asked Questions about Lysozyme
What is lysozyme in skincare?
A natural enzyme that conditions skin by maintaining softness, smoothness, and flexibility.
Is lysozyme safe for sensitive skin?
It has a low hazard rating and is generally well-tolerated.
Where does lysozyme come from?
Typically from egg whites or microbial sources, mimicking its natural occurrence in tears and saliva.