Collagen is a key structural protein found in human skin and many tissues of the body. When it comes to cosmetic properties, collagen offers a number of benefits for the skin:

Hydration: Collagen can help retain moisture in the skin, thus improving skin hydration. This can make your skin softer, smoother and more elastic.

Reduction of wrinkles and fine lines: Collagen is responsible for the structure and firmness of the skin. By using products containing collagen, you can help reduce the appearance of wrinkles and fine lines, thereby improving the overall texture of your skin and giving it a more youthful appearance.

Skin regeneration: Collagen can help stimulate the production of new skin cells, thus contributing to the regeneration of damaged skin. This can be especially helpful in treating scars, stretch marks, and other signs of skin damage.

Improved skin elasticity: By using products containing collagen, you can help improve the elasticity of your skin, making it firmer and resistant to the loss of elasticity associated with aging.

Protection from environmental damage: Collagen can help protect the skin from damage caused by free radicals, UV rays and other harmful environmental agents, thus reducing the risk of skin damage and premature aging.

Compatibility with all skin types: Collagen is a protein naturally present in human skin and is generally well tolerated by all skin types, including sensitive skin.

Compatibility with other ingredients : Collagen can be combined with other hydrating, antioxidant and anti-aging ingredients to enhance their beneficial effects on the skin.

It is important to note that while the topical application of collagen may provide some cosmetic benefits, its ability to effectively penetrate the deeper layer of the skin is still being studied. However, collagen-containing products can still improve the appearance and health of your skin, especially when used as part of a comprehensive skincare routine.