In early trials, beta-carotene was used in AREDS2 supplements, but beta-carotene usage nearly doubled the risk of lung cancer
It also supports molecules like decorin, dermatan sulfate, and chondroitin sulfate, all of which help keep skin hydrated and cushioned from the inside. Newer GHK-Cu Research on Skin Repair In 2023, a study in the Journal of Cosmetic Dermatology tested GHK-Cu alongside hyaluronic acid and found that the two together boosted collagen production more than either could alone. A 2024 review in Applied Sciences highlighted how the peptide supports wound healing, helps new blood vessels form, and brings the right repair cells (macrophages, monocytes, and mast cells) to areas that need healing. A 2025 review published in International Journal of Medical Sciences went even further, looking at next-generation GHK-Cu formulations
Tirzepatide received FDA approval for type 2 diabetes (as Mounjaro) and for chronic weight management (as Zepbound)
If subcutaneous testosterone injections are right for you, you will merely need a small insulin syringe to administer the hormone
doi: 10.1155/2022/8744788 3
Further characterization of metabolite compartmentalization and associated enzymatic activity revealed that blood NADs and glutathione predominantly reside within cellular fractions, with plasma containing only trace amounts of NADH and no detectable glutathione (Fig