NB

The reason as below:
Fish collagen is more easily digested ; Fish collagen is better absorbed by the body; Fish collagen has an overall low allergy potential.
Fish collagen peptide consists of small peptide molecules in the range of 1,000 and 5,000 daltons. Its absorption in the small intestine is superior to other collagen products due to its smaller molecule size, which leads to a more efficient collagen synthesis.  Because of these advantages in absorption, fish collagen peptide is becoming the collagen of choice for skin care supplements to improve skin smoothness, elasticity, moisture, and to also slow down the formation of wrinkles and fine lines.