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When hPSCs reached approximately 70% confluency, the culture medium was switched to RPMI1640 supplemented with 1 B27
The dosage of supplemental vitamin K in the included studies ranged from 200 mcg to 1,000 mcg daily and the forms of vitamin K supplemented included K1 and K2 (eg, MK-7)
10.1016/j.ygyno.2012.05.029 Gynecol
Topical protocol guidance Apply GHK-Cu serum or cream once to twice daily, to clean dry skin For anti-aging use: apply after cleansing, before moisturizer Allow 15-20 minutes before applying other actives Best results typically emerge after consistent use over 8-12 weeks Do not combine in the same session with strong vitamin C serums, AHAs, or retinoids Post-procedure use: apply after microneedling, laser, or peel procedures as directed by the provider Injectable protocols general reference Safety profile of GHK-Cu GHK-Cu has one of the best safety profiles of any peptide studied for aesthetic and regenerative use
A typical week might involve Retatrutide on Sunday, TB-500 on Monday and Thursday, BPC-157 daily, and GHK-Cu on Tuesday, Thursday, and Saturday
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