Collagen is a protein found in our joints, skin, bones, tendons and teeth and connective tissue. Collagen fibers become damaged over time, as we age, losing its thickness and strength. When a person consumes collagen, it increases collagen production stimulation and helps improve the damaged collagen fibers, improving the tissue appearance. It provides the building blocks for elastin and collagen production and also stimulates hylauronic acid. The two types of collagen found mainly in the dermis are type I and type III.
The four main sources of collagen found in different supplement products are bovine, porcine, poultry and marine. Marine collagen is found to be superior to bovine (bovine being the most popular source) due to its high absorption rate and bioavailability, however is generally more expensive.
Collagen is the most abundant structural protein in the human body, loss of collagen over time gives skin an undesirable wrinkle effect. Consuming collagen may improve the skins ability to retain moisture and may prevent UVB photodamage to help promote healthier and younger looking skin.