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The fix: inject 1-2 cm below the kneecap, directly over the patellar tendon
At best, it is hypothesis-generating , and at worst, the findings may simply reflect placebo effects or biased reporting
This could happen due to: Persistent underlying conditions that hinder absorption
How GHK-Cu Compares to Retinoids, Vitamin C, and Other Anti-Aging Ingredients The 1998 head-to-head trial by Abdulghani measured procollagen synthesis side by side, and the copper-binding peptide outperformed both vitamin C and tretinoin
Clinical studies suggest that peptides like GHK-Cu, biotinoyl tripeptide-1, and acetyl tetrapeptide-3 can help stimulate hair follicles, reduce shedding, and improve hair density over time
On the implied idea that top age groupers are less likely to use peptides than pro license holders
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