Collagen is made up of protein.
In fact, collagen makes up 25 to 35 % of the whole body’s protein content.
Aside from water, protein is the second most abundant molecule in the body.
Proteins are a peptide chain of over 100 amino acids
Amino acids are the building blocks of peptides that link together to form proteins.
There are a few things you can use at home and in-salon treatments
