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Physically, IGF-1 LR3 is presented as a white to off-white lyophilized powder of synthetic origin, with purity not less than 98% by reversed-phase HPLC and identity confirmed against the lot-specific Certificate of Analysis Bundle:1 Box Collagen Peptides Powder NAC N-Acetyl L-Cysteine | Allergy Research Group https://hairgenetix.com/cdn/shop/files/GHK-Cu-Mechanisms-for-hair-growth.png?v=1770735262
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