100 mg Other Ingredients: Calcium phosphate, cellulose, stearic acid (vegetable source), food-grade coating (hypromellose, titanium dioxide, polydextrose, talc, maltodextrin, medium chain triglycerides), silicon dioxide, and magnesium stearate (vegetable source)
Many people supplement it to support overall wellness
Oncotarget 8(17):2806328073 Hayano M, Yang WS, Corn CK et al (2016) Loss of cysteinyl-tRNA synthetase (CARS) induces the transsulfuration pathway and inhibits ferroptosis induced by cystine deprivation
Stevenson, M
In her practice, Davis looks for third-party-testing certifications, such as ConsumerLab, US Pharmacopeia (USP), and the National Science Foundation (NSF), all of which indicate that the product has been tested for potency and purity