Animal collagen supplements come from ground up animal
parts and are often mixed with preservatives, then processed with natural flavors to make collagen powder supplements.
The body also has a difficult time utilizing collagen derived from animals.
This is because the body has to break down animal collagen into amino acids, then use the amino acids to build collagen. Animal collagen does not simply go into our skin, but requires digestion to be utilized.
Animal collagen molecules are too large to permeate the skin’s outer layers. So while moisturizers, serums, and collagen creams containing animal collagen may claim to support the body’s natural production of collagen, they can’t replace the collagen in your skin. The sameis true for any animal collagen supplement that you ingest (be it a collagen powder, collagen pill or collagen drink) that contains plain, whole molecule 'collagen.' The molecule is just too big to
be absorbed and have any desired effect.