They're signaling molecules
In one randomized, cross-over study, 20 participants were given oral glutathione (GSH), sublingual GSH, or NAC for three weeks
Glutathiones tripeptide structure makes it poorly suited to oral delivery
Shampoo: Orgainc Aloe Barbadensis Leaf Juice, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Cocoyl Isethionate, Glycerin, Caffeine, MSM, Biotin, Pantothenic Acid, PEPTASTEM [Citrus Aurantium Dulcis (Orange) Callus Culture Extract, Centella Asiatica (Gotu Kola) Extract, Tripeptide-5, Palmitoyl Tetrapeptide-7, Acetyl Hexapeptide-8, sh-Oligopeptide1, Allantoin] , Hydrolyzed Keratin, Vitis Vinifera Fruit Cell Extract (Grape Stem Cell), L-Methionine, Myristoyl Pentapeptide-17, Fucus Vesiculosus (Seaweed) Extract, Clitoria ternatea Linn Extract, Niacin, Simmondsia Chinensis (Jojoba) Seed Oil, Brassicamidopropyl Dimethylamine, Arthrospira Platensis, Peppermint (Mentha) Oil, Lavender (Lavendula) Oil, Sage (Salvia officinalis L.) Oil, Bergamot (Citrus Bergamia) Oil, Tocopheryl (Vitamin E), Ethoxydiglycol, Caprylyl Glycol, Xanthan Gum, Guar Hydroxypropyltrimonium Chloride, Sodium Benzoate, Potassium Sorbate, GHK-Cu (Copper Peptide), Radish ferment, Sodium Chloride, Tetrasodium Glutamate Diacetate
If you learn that you do have significant MTHFR variants that are symptomatic, supplementation with the activated form of folate (vitamin B9) and B12, also known as methyl folate and methylcobalamin respectively, is recommended
