l-theanine and glutathione Swanson Suntheanine L-Theanine 200 mg

It has been studied extensively for its tissue-healing, anti-inflammatory, and musculoskeletal repair properties across multiple organ systems

This blog explores copper peptides, like GHK-Cu, and their potential in tissue repair, collagen production, and skin rejuvenation

Clinical studies utilizing facial application of 2-3% GHK-Cu serums over 12-week periods have documented measurable improvements across multiple photoaging parameters, including 20-35% reductions in fine line depth, 15-25% improvements in skin elasticity measurements, and 25-40% increases in dermal density as assessed through high-frequency ultrasound imaging

doi:10.1001/jama.296.19.2319

This is primarily due to its potential for improved bioavailability through restricting dietary protein [89, 90]

Lancet, 402(10403), 720-730