The NHS does not set an upper safe limit for B12 because harmful effects from excessive intake have not been definitively established
Reference: GHKCUCR50 GHK-Cu Cartridge Refill GHK-Cu, a naturally occurring copper peptide, supports skin regeneration, collagen synthesis, and wound healing
13 / 13 Talk to your doctor about B12 supplements, both during pregnancy and breastfeeding
One user, who initially feared neurological illness, found answers through testing: "Simple blood work revealed the problem Im deficient in vitamin B12 as well." - thcitizgoalz Another discovered their deficiency during a standard check-up: "Just had a routine blood test its come back with a B12 deficiency (was completely fine before MJ)." - Square-Banana6870 Some found that even with "normal" results for other vitamins and minerals, B12 stood out as the missing link: "All my levels came back perfect but my hair is falling out anyway." - Fantastic_Radio5713 In many cases, its the response to treatment - rapid boosts in energy, mood, or neurological symptoms - that confirms the diagnosis
Some competitive athletes use it to target final stubborn areas during cutting phases, and there's anecdotal support for this but the dramatic results seen in higher-body-fat research subjects won't replicate at 12% BF
Common sizes include 31-gauge needles that are 5/16 of an inch long