glutathione supplement whitening BHK's Advanced Tablets (60 tablets/bottle) L-Glutathione Capsules Natural Antioxidant Whitening

Both peptides are given in the form of an injection

Sources Richie JP, et al

Nothing here is medical or dosing advice

10.1016/j.bcp.2020.114365 53 NoblancA.PeltierM.Damon-SoubeyrandC.KerchkoveN.ChaboryE.VernetP.et al (2012)

I tried it anyway and didnt notice anything

So people at greatest risk for deficiency include those with low stomach acid (e.g., older adults and people on proton pump inhibitors or antacids) or low IF production (known as pernicious anemia), people on medications that interfere with B12 absorption (such as metformin), people who have had gastric surgery, those with GI conditions that impair nutrient absorption (like celiac or Crohn's disease), and people on vegan and vegetarian diets