The FDA has classified BPC-157 in Category 2 for bulk drug substances, citing possible safety issues in compounding, such as immunogenicity, impurities, and insufficient safety evidence for suggested administration routes
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Smart et al., 2007)
3 vials of either is always 10% off single vial price
For many people that works fine
If vitamin C, strong AHAs/BHAs, low-pH exfoliants, and retinols are part of your regular skincare routine, I wouldn't say you're not a candidate for copper peptides rather, you need to be more strategic about timing