Start slowly, use an appropriate concentration, choose a delivery vehicle that works with your skin barrier rather than against it, and be thoughtful about how you layer GHK-Cu with pH-sensitive actives like vitamin C and cell-turnover accelerators like retinol
They're both well-researched peptides popular in the biohacking community but they target completely different biological pathways
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AOD 9604: Budget alternative for fat loss Why it's a good option: Specifically targets fat metabolism No appetite suppression (pro or con) Cheaper than GLP-1s Fewer side effects Best for: Modest fat loss Those who can't tolerate GLP-1 side effects Budget-conscious Don't need appetite control Dosing: 300-600mcg daily on empty stomach Injectable subcutaneous Use for 3-6 months Less powerful than GLP-1s: Expect 5-10 lbs loss over 3 months (vs 15-25 lbs with semaglutide) Better than nothing, not as effective as GLP-1s See our AOD 9604 guide and HGH fragment 176-191 calculator
These findings are experimental and should not be generalized into universal tissue-regeneration, antioxidant, cosmetic, or therapeutic claims