One notable trial in 20 subjects compared the effects of the retinoid tretinoin, which is about 10x more potent than retinol, to the effects of GHK-Cu on dermal procollagen synthesis, epidermal proliferation, and inflammation
View on PubMed Retatrutide: A Triple Incretin Receptor Agonist for Obesity Management Expert review characterising retatrutide as a first-in-class GIP, GLP-1, and glucagon triple receptor agonist, detailing its mechanism of action, pharmacokinetics, and the clinical significance of adding glucagon receptor agonism to produce superior weight loss to dual agonists (Expert Opin Investig Drugs, 2023)
Additionally, vitamin E has been observed to enhance luteal phase support by reducing oxidative stress in the corpus luteum, which produces progesterone essential for sustaining early pregnancy
Acting almost like bullets, free radicals such as hydrogen peroxide, superoxide and hydroxyl radicals, fire around the body creating havoc by reacting with cell membrane fatty acids and proteins, and damaging cellular components such as DNA & RNA
Finally, the subjects were older, but had relatively well-preserved cognitive function