two types of glutathione Metabolism - an overview Glutathione for skin lightening: a

A.et al (2015)

Surgery is generally reserved for cases with progressive neurological deficits, cauda equina syndrome (a surgical emergency), or persistent symptoms despite 6 to 12 months of conservative treatment

The dose depends on their age, weight, and why they need B12

Unknown human safety: Injectable GHK-Cu has no completed human safety data, so treat it as experimental

But its a different story in locations where cobalt is commonly deficient: legumes and grasses bear the same amounts as each other

Unlike approved drugs, they havent undergone the rigorous testing required to understand their safety profile in humans