{"product_id":"nac-600-mg-with-selenium","title":"Osterly Market NAC 600 mg with Selenium","description":"\u003cp class=\"osm-front\"\u003e\u003cstrong\u003e600 mg N-acetyl cysteine, with selenium. And a note the label does not carry.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eN-acetyl cysteine at a stated dose, paired with selenium — plus the regulatory situation, which almost nobody selling NAC mentions.\u003c\/p\u003e\u003ch4\u003eWhat it's for\u003c\/h4\u003e\u003cp\u003eNAC is a form of the amino acid cysteine, and cysteine is the rate-limiting ingredient your body needs to build glutathione, its principal internal antioxidant. That is the whole reason people take it: swallowing glutathione itself works poorly, while NAC actually reaches the bloodstream and gets used. It has decades of medical history as a prescription mucolytic for thinning airway mucus, and it is the hospital antidote for paracetamol overdose — given intravenously, under supervision, at doses far beyond anything in this bottle. The selenium is here because it is a cofactor for the enzymes that recycle glutathione.\u003c\/p\u003e\u003ch4\u003eHow to take it\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOne capsule daily, with or without food\u003c\/li\u003e\n\u003cli\u003eNAC smells faintly of sulphur. That is normal and not a sign anything is wrong\u003c\/li\u003e\n\u003cli\u003eIt has a mild blood-thinning effect. Mention it before surgery and if you take an anticoagulant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf you or someone else has taken too much paracetamol, call emergency services.\u003c\/strong\u003e Do not try to treat an overdose with this. Hospital treatment is intravenous, dosed by weight and blood level, and it is time-critical\u003c\/li\u003e\n\u003cli\u003eSelenium accumulates. Check the panel against any multivitamin you already take — doubling up is easy and not harmless\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn the label\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e600 mg N-acetyl L-cysteine per capsule\u003c\/li\u003e\n\u003cli\u003eSelenium included and stated\u003c\/li\u003e\n\u003cli\u003e30 capsules or 120 capsules\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhat this is not\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNot an overdose treatment you administer yourself\u003c\/li\u003e\n\u003cli\u003eNot a hangover cure, whatever the internet says\u003c\/li\u003e\n\u003cli\u003eNot glutathione — it is the building block your body uses to make it\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eThe straight answer\u003c\/h4\u003e\u003cp\u003eWorth knowing before you buy: the FDA's stated position is that NAC is excluded from the legal definition of a dietary supplement, because it was approved as a drug before it appeared in supplements. Since 2022 the agency has said it will exercise enforcement discretion, which is why it is still on shelves everywhere. Nothing about that makes it unsafe — but it is a genuinely unsettled category, and you should hear it from us rather than find out later.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003csmall\u003eFree shipping on every order, no minimum. Questions or a complaint about shipping or a product? Email us and a person will answer.\u003c\/small\u003e\u003c\/p\u003e\u003cp\u003e\u003csmall\u003eThese statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Talk to your doctor before starting any supplement, especially if you are pregnant, nursing, or taking prescription medication.\u003c\/small\u003e\u003c\/p\u003e","brand":"Osterly Market","offers":[{"title":"30 capsules","offer_id":49637493506275,"sku":"OSM-P17A","price":16.99,"currency_code":"USD","in_stock":true},{"title":"120 capsules","offer_id":49637493539043,"sku":"OSM-P17B","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/0096\/3043\/files\/Screenshot_2026-08-29_123147_71a693f2-4de6-4e7e-b458-8d32d7c24c3c.png?v=1788022465","url":"https:\/\/osterly.us\/products\/nac-600-mg-with-selenium","provider":"Osterly Market","version":"1.0","type":"link"}