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These needles can be either IM or SubQ

He's a physician with Weill Cornell Medicine and author of the "New Yorker" article "Why Are People Injecting Themselves With Peptides?" Dr

results may be slower than injections Injectable Peptides Best for: BPC-157, TB-500, GHK-Cu (subcutaneous) Advantages: Higher bioavailability, systemic benefits beyond hair (skin, joints, healing), faster onset of action Limitations: Requires injection protocol, not suitable for everyone, may need to be administered by a healthcare professional The Combination Approach Many practitioners and biohackers report the best results by combining topical and injectable peptides

Statistical Analysis The statistical analyses were with parametric one-way ANOVAs with post hoc Newman-Keuls tests and non-parametric Kruskal-Wallis tests with subsequent Mann-Whitney U tests to compare groups