Some may be used in research settings, compounded settings, or aesthetic contexts, but evidence quality, regulation, purity, dosing, and safety oversight can vary significantly
Particularly in regulating AT, which is only innervated by the sympathetic nerves, while the liver, skeletal muscle, and pancreas are under the control of the parasympathetic nervous system (118)
People with darker skin tones may notice a more gradual change, while those with lighter complexions may see a subtle glow after one treatment
History Current Version December 3, 2025 Written By Dr
(5) Because the amino acids in collagen build the tissue that lines the colon and entire GI tract, supplementing with collagen can support healthy digestive function