Because B vitamins are water-soluble and the body can't store most of them long-term, regular intake through food (or supplementation when needed) matters more than occasional big doses
Thats where BPC 157 for back pain comes in
Individual protocols vary
Effect of selenium supplementation on glutathione peroxidase enzyme activity in patients with chronic kidney disease: a randomized clinical trial
Exposure to xenobiotics, heavy metals (such as lead, mercury, and arsenic), stress, poor dietary choices, toxic cocktails of prescription and non-prescription drugs, trauma, and infections all have huge consequences for the body and its ability to maintain adequate glutathione levels
Notably, GHK-Cu was originally identified as a liver cell growth factor, recognized for its role in stimulating liver tissue regeneration and its significance in age-related tissue repair