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Mice were treated with 10 times lower doses compared to the experiment examining the heart

26 Serum B 12 , homocysteine, and methylmalonic acid (MMA) levels (box 2) are unreliable predictors of B 12 responsive neuropathy (neurological disorders that respond to B 12 supplementation)

doi: 10.1210/jcem-71-6-1581 4 DevesaJDazMJTresguerresJAArceVLimaL

Status: FDA-approved (metabolic/weight indications) Weekly SC injection Available via prescription Caveat: GLP-1 side effects including liver, kidney, and pancreatic risks are detectable early with proper lab monitoring

Collagen-derived peptides have solid preclinical data from mouse models and ex vivo human follicle studies

As you may know, aging tissue has a harder time repairing itself