What collagen supplementation is doing
Collagen is the most abundant protein in the body and a major structural component of skin. Production declines with age.
Ingested collagen is digested like any other protein. It does not travel intact to your skin and become collagen there. The proposed mechanism is that certain collagen-derived peptides survive digestion in small quantities and may act as signals to fibroblasts, alongside supplying the amino acids used to build collagen.
Hydrolysis and molecular weight
Hydrolysis breaks collagen into shorter peptide chains before you take it. Native collagen runs to around 300,000 daltons. Ordinary hydrolysed collagen typically sits between 3,000 and 5,000. Innour state theirs at 2,000, which places it at the lower end of the range.
The argument is that smaller peptides cross the intestinal wall more readily, so more reaches circulation as peptides rather than being broken down entirely into individual amino acids.
There is reasonable support for this. Specific short peptides, particularly prolyl-hydroxyproline, have been detected in blood after ingestion of hydrolysed collagen, and these are the fragments proposed to act as signals rather than simply as protein.
Worth knowing that molecular weight is an average across a distribution rather than a single value, and that most brands do not publish a figure at all. Quoting one is a point in Innour's favour regardless of the number.
Why marine
Marine collagen is predominantly type I, the type most abundant in skin. Its peptides are smaller than bovine collagen's. Both are cited as reasons for better absorption.
Vitamin C
Included because vitamin C is an essential cofactor for the enzymes that stabilise collagen during synthesis. Without adequate vitamin C, collagen cannot form properly. This is established biochemistry rather than a marketing addition.
The flavouring
Freeze-dried raspberry and stevia. Each serve contains 5g of collagen regardless of flavour, with the flavouring added on top rather than displacing the dose. That is why the flavoured tubs weigh more than the unflavoured for the same number of serves.
What's in it
Premium French Marine Collagen, Raspberry Fruit Powder, Natural Raspberry Flavour, Stevia, Vitamin C.
Every batch is independently tested in a NATA-certified laboratory for stability, nutritional accuracy, and the absence of heavy metals and contaminants.