Our expert says:
Hi Annelise, thank you for the question.
You are 100% correct in that there is not much data on the peptan collagen (hydrolyzed collagen) and their direct effects on the skin; as such it is difficult to comment from a medical scientific point of view.
The claim is that peptan collagen differs to ‘regular’ collagen in the size of the molecule and therefore the ability of the body to absorb the collagen. Two studies have shown an improvement of bone health in mice with the peptan collagen but I cannot find any information on its direct effect on the skin.
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