Most of the support for this method is anecdotal
These can be: Allergic reactions, which can show up as hives, trouble breathing, or swelling of the face, lips, tongue, or throat Heart problems in people who are already at risk Its key to watch out for any signs of these side effects
News Release July 26, 2023 Best Collagen Supplements for Skin and Joints, According to ConsumerLab Tests White Plains, New York, July 26, 2023 Collagen supplementation may modestly reduce wrinkles and the appearance of cellulite, and moderately decrease joint and tendon pain and improve flexibility in people with osteoarthritis
10.1016/s0021-9673(01)96504-5 705 WoodwardR.SchrammC
Treat all of this as directional community colour, not evidence
Moreover, S assimilation and Cys synthesis are partitioned between subcellular compartments