NOW Foods Glutathione 500 mg Review
Glutathione 500 mg Veg Capsules from NOW Foods. Product color: Beige. Listed with milk thistle extract and alpha lipoic acid. Glutathione is a small peptide molecule composed of three amino acids: cysteine, glutamic acid, and glycine. It is produced by every cell of the body, with especially high levels in the liver. Glutathione is critical for healthy immune system function, necessary for proper detoxification processes, and supports healthy aging. It also plays a critical role in maintaining cellular health by directly neutralizing free radicals, as well as by maintaining the activity of vitamins C and E. Milk thistle extract and alpha lipoic acid are included as complementary ingredients. Natural color variation may occur in this product. Each serving of 1 veg capsule provides 500 mg Glutathione (Reduced Form), 100 mg Milk Thistle Extract standardized to 80 mg Silymarin Flavonoids, and 50 mg Alpha Lipoic Acid. Suggested usage: take 1 capsule daily, preferably on an empty stomach. Store in a cool, dry place after opening. Other ingredients are hypromellose cellulose capsule, microcrystalline cellulose, magnesium stearate from vegetable source, and silicon dioxide. The product is not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients, though it is made in a GMP facility that processes other ingredients containing these allergens. Certifications listed include Halal, Kosher (Triangle K), Non-GMO, Intertek GMP Supplement Certification, and Vegan. Made and quality tested in the USA with globally sourced ingredients. The bottle for SKU 0175 and 0176 is made from 100% PCR resin. Family owned since 1968. Caution: for adults only; consult a physician if pregnant or nursing, taking medication, or have a medical condition; keep out of reach of children. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Study, Trial or Testing Result Summary
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Supplement Facts
Glutathione 500 mg · Milk Thistle Extract 100 mg · Alpha Lipoic Acid 50 mg
| Glutathione (Reduced Form) | 500 mg | |
| Milk Thistle Extract (Silybum marianum) (Fruit/Seeds) (Standardized to 80 mg Silymarin Flavonoids - equivalent 80%) | 100 mg | |
| Alpha Lipoic Acid | 50 mg |
Other ingredients: Hypromellose (cellulose capsule), Microcrystalline Cellulose, Magnesium Stearate (vegetable source) and Silicon Dioxide.
Directions: Take 1 capsule daily, preferably on an empty stomach.
Label source: Nowfoods · Report a label change
Where to Buy
NOW Foods · Nhc
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Graded October 26, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

