Both Douglas Labs and Pure Encapsulations are Emerson Quality Program Gold Partner meaning their sourcing of materials, manufacturing, and production of supplements is in the tier in the industry
These side effects are usually temporary and subside within a few days
But they are not the same compound, and they do not work through the same biological pathway
Dosage & Administration ['Adults: 1 effervescent tablet in 200 ml water once daily', 'Drink immediately after dissolving', 'Take on an empty stomach for best absorption', 'Continue for 812 weeks'] Side Effects ['Generally well tolerated', 'Mild GI upset', 'Allergic reaction (rare)', 'Sulfurous taste in some patients'] Contraindications & Precautions ['Hypersensitivity to glutathione or vitamin C', 'G6PD deficiency (caution)', 'Active peptic ulcer'] Storage Store below 25C, keep bottle tightly closed