body aches after b12 injection Common & Rare Side Effects of Vitamin Injections Does B12 Make Joints Ache?

study timeline, Fig

AHK-Cu (Alanine-Histidine-Lysine Copper Tripeptide-3) is a copper-binding peptide, similar to the well-known GHK-Cu (Copper Tripeptide-1)

Cognitive Support Higher NAD levels activate sirtuins 10 (SIRT1, SIRT3), which protect brain cells by reducing oxidative stress, supporting DNA repair, and improving mitochondrial health

If the reason is less clear, the care team may recommend review of symptoms, outside records, or broader follow-up before turning B12 into a repeating plan

Cellular Energy NAD+ & Sirtuines NAD+ Restoration & Mitochondrial Function By preserving the NAD+ pool, 5-Amino-1MQ supports the mitochondrial electron transport chain and the activation of sirtuins (SIRT1-7)