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A 2015 Pharmaceutical Research study confirmed this: after microneedle treatment, 134 nmol of peptide and 705 nmol of copper permeated through skin over 9 hours
They are subject to cosmetic labeling and safety rules, not pharmaceutical standards
Improved Skin Elasticity: Clinical trials show a 35 % improvement in skin elasticity after regular use of GHK cu serum
The result is a larger, sustained, dual-pathway GH pulse versus a brief single-pathway pulse
Sources Getting SJ, et al
body composition response is gender-neutral based on trial data
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