After a single hydroxocobalamin injection, therapeutic levels can be maintained for approximately 8 to 12 weeks in most patients, which aligns with the standard maintenance schedule of injections every 2-3 months recommended in the British National Formulary (BNF)
It can be used on its own or alongside other therapies when calorie reduction, fatigue, or slow recovery make progress harder to maintain
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A standard six-week protocol requires approximately 12.6mg total AOD-9604 (300mcg daily 42 days)
Key Takeaways GHK-Cu is a naturally occurring copper peptide that may have potentially beneficial effects in supporting skin firmness, hair growth appearance, and collagen production AHK-Cu is a synthetic copper peptide that has shown positive effects on hair and scalp health appearance in available research The comparison between AHK-Cu vs GHK-Cu shows GHK-Cu has the broader research base for both skin appearance and hair growth with consistent application Some users may explore AHK-Cu and GHK-Cu together, however, published research on the efficacy of this approach is limited PLU Laboratories offers both GHK-Cu and AHK-Cu peptide serums, with GHK-Cu as our flagship for skin and hair support and AHK-Cu available as a dedicated hair-focused option What is GHK-Cu