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Of the 36 that met inclusion criteria, 35 were preclinical animal studies
While that study used a clinical-grade tattoo machine, at-home dermarolling (0.51.5 mm) with a copper peptide serum follows the same principle of enhanced delivery to the follicle
Expert Insight / Pro Tip When researching ghk cu topical formulas versus raw powders, look closely at the salt variant
1), structurally modeled on Epithalamin, a natural extract derived from the pineal gland of cattle [1, 4]
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