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Low red blood cell counts (anemia) due to vitamin B12 deficiency

Another user throws away perfectly good GHK-Cu at day 20 thinking it expired

If you are having private injections on top of an NHS schedule, the combined frequency may be higher than either provider realises, which is worth flagging to both

Instead, they explore it for recovery-related goals such as: Supporting muscle repair after strains or overuse Helping tendons and ligaments tolerate heavy lifting Reducing inflammation around irritated joints Supporting faster return to training after minor injuries Improving consistency during high-volume training blocks This distinction matters

Medications- Certain medications, such as proton pump inhibitors and metformin, can interfere with B12 absorption, leading to deficiency over time

Your immune system could produce antibodies that make the drug stop working