Elastin is a protein associated with the elasticity of selected tissues, including the skin. Its role helps explain why tissue can stretch and partially return to its previous shape. Elastic fibers are complex structures, and elastin itself is not the only element that determines the properties of the skin.
Characteristics and context
Research on the structure of connective tissue has also introduced this concept into the cosmetic language. The preparations contain certain raw materials or hydrolysates called elastin, but their presence does not mean automatic reconstruction of fibers in the skin. The full recipe and method of application are important. It is worth distinguishing between natural tissue protein, the material used in the cosmetic and the advertising promise to improve elasticity - these are three different levels of description.
Meaning and application
Tissue elasticity is a property of its entire structure, not just the presence of one type of protein. The organization of the fibers, the surrounding matrix and the conditions under which the tissues operate are important. This distinguishes a natural biological system from a material added to a cosmetic. The name elastin in the ingredient list does not mean that the molecule used will simply be incorporated into the finished skin fibers. This simplification ignores the difference between tissue structure and care formulation.
In practice
Protein hydrolysis leads to fragments with different characteristics than the entire initial structure. Therefore, it is necessary to keep the exact names of raw materials and distinguish them from the word "flexibility" used in marketing. In practice, the feeling of smoothness may also depend on the moisturization and properties of the emollients in the formula. It is not itself a measurement of fiber recovery. The full composition, method of use and data relating to a specific formula say the most about the product.