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So, instead of asking Glutathione vs Collagen , the real question is why not both for complete skin health?
Hanigan MH, Frierson HF Jr., Swanson PE, De Young BR
PMID 38673453
It is important to consider any medical conditions when determining the frequency of B12 injections
Analytical testing confirms 99.8 % purity , assay content verified at 5.51 mg, molecular ion mass identified at 848 Da and endotoxin levels measured at 0.020 EU/mg
8 Also in Japan, in 2007, patients with the incurable neurodegenerative disease ALS (Lou Gehrigs disease) received daily injections with 25 mg methylcobalamin for 4 weeks, followed by daily injections of 50 mg intravenously, followed by 50 mg a week
