For weight loss, results typically start showing after a few weeks, especially if you stay consistent with your injections and maintain a healthy lifestyle
Glutathione helps protect cells from oxidative stress, detoxifies harmful substances, and supports the immune system

Water(Aqua), C13-15 Alkane, **Niacinamide, Butylene Glycol, Caprylic/Capric Triglyceride, Tranexamic Acid, Glycerin, **Arbutin, 1,2-Hexanediol, **Glutathione, Borago Officinalis Seed Oil, Glycine Soja (Soybean) Seed Extract, **Alpha-Arbutin, **Acetyl Glucosamine, Panthenol, Xanthan Gum, Potassium Cetyl Phosphate, Allantoin, Ethylhexylglycerin, Melia Azadirachta Flower Extract, Disodium EDTA, Ocimum Sanctum Leaf Extract, Polyglutamic Acid, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Squalane, Sodium Hyaluronate, **Kojic Acid, Ascorbic Acid, Centella Asiatica Extract, Tocopherol, Citrus Limon (Lemon) Fruit Extract, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate,Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Polyglyceryl-10 Laurate, Potassium Hyaluronate, Phosphatidylcholine, Tocopheryl AcetateWater(Aqua), C13-15 Alkane, **Niacinamide, Butylene Glycol, Caprylic/Capric Triglyceride, Tranexamic Acid, Glycerin, **Arbutin, 1,2-Hexanediol, **Glutathione, Borago Officinalis Seed Oil, Glycine Soja (Soybean) Seed Extract, **Alpha-Arbutin, **Acetyl Glucosamine, Panthenol, Xanthan Gum, Potassium Cetyl Phosphate, Allantoin, Ethylhexylglycerin, Melia Azadirachta Flower Extract, Disodium EDTA, Ocimum Sanctum Leaf Extract, Polyglutamic Acid, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Squalane, Sodium Hyaluronate, **Kojic Acid, Ascorbic Acid, Centella Asiatica Extract, Tocopherol, Citrus Limon (Lemon) Fruit Extract, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate,Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Polyglyceryl-10 Laurate, Potassium Hyaluronate, Phosphatidylcholine, Tocopheryl Acetate

This is a commonly referenced study from 1963 claiming a half-life of 5-6 days: nature.com/articles/198200a0 Although I would not cite it as an authority, the six-day half-life has also made it onto the B12 page in Wikipedia, seemingly unchallenged