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250 mcg equals 0.25 mg

S-Acetyl Glutathione Synergy is a unique detox and antioxidant support supplement by Designs for Health that provides 200 mg of S-acetyl glutathione a highly absorbable form of the body's "master antioxidant" plus 1 g of NAC and 10 mg of vitamin B6 (as P5P) per serving.* Together, these ingredients help support healthy antioxidant status, normal detoxification, cellular health, immune function, a healthy inflammatory response, and healthy aging.* S-Acetyl Glutathione Synergy is formulated to support antioxidant status and normal detoxification pathways.* It directly delivers S-acetyl glutathione a stable, bioavailable form of the body's "master" antioxidant while also providing NAC, a key building block your body uses to naturally make more glutathione, for comprehensive antioxidative support.* Individual results may vary based on oxidative stress levels, diet, and overall health status.* Key benefits include support for antioxidant status, cellular repair, immune health, normal detoxification, and healthy aging supported by a powerful blend of S-acetyl glutathione, NAC (a building block for glutathione), and vitamin B6 (as P5P).* Take two capsules per day, or as directed by your healthcare practitioner

5 days/week) Frequency: Inject once daily, 5 days per week subcutaneously [5] [6]
The Arbor Assays DetectX Glutathione Colorimetric Detection Kits (K006-H1) offers a quantitative method capable of measuring GSH in a variety of samples using a colorimetric substrate that yields a highly colored product