The fatigue is real
Refer to the MHRA for UK medicines regulation.
Copper, Collagen, and Controversy: Inside the GHK-Cu Buzz TLDR GHK-Cu is a naturally occurring copper-binding peptide gaining popularity in skin regeneration, wound healing, and inflammation modulation
Ingredients L-Glutathione (fermentation of torula yeast - Candida utilis), Vitamin C (ascorbic acid), purified phosphatidylcholine from soybean lecithin, caprylic triglycerides, alcohol, glyceryl stearate, oleic acid, ascorbyl palmitate, tocopherols, glycerine, watermelon flavour
References (1) Gmez-Guerrero NA, Gonzlez-Lpez NM, Zapata-Velsquez JD, Martnez-Ramrez JA, Rivera-Monroy ZJ, Garca-Castaeda JE