Sunergetic Premium NAC Supplement N-Acetyl Cysteine - 750mg Per Capsule - Supports Liver, Detox Immune, Cellular & Respiratory Health - 90 N Acetyl Cysteine Capsules

Clinical trials typically use 600-1,800 mg daily. Sunergetic NAC 750mg delivers 750mg NAC per capsule; 90 servings per bottle, which we classify as Therapeutic relative to that range.

See the "Also consider" section below for two alternatives. Choose based on form preference (Capsule vs alternatives), dose adequacy, and third-party testing.

Yes — GMP manufactured; third-party testing not publicly disclosed. Third-party testing verifies ingredient identity and label accuracy.

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

NAC can enhance the effect of nitroglycerin and other vasodilators. NAC may reduce the effectiveness of some cancer chemotherapy (consult oncologist). NAC can mildly enhance insulin sensitivity — diabetics should monitor glucose. No major interactions with most common medications, but always inform your physician.

NAC has an excellent long-term safety profile in clinical trials up to 24 weeks and extensive post-market use. Used pharmaceutically in Europe for decades as a mucolytic at higher doses than this product. No known long-term toxicity at supplemental doses.

NAC can occasionally cause mild nausea or stomach upset, especially on an empty stomach — take with food to minimize. The sulfurous smell can trigger sensory aversion in some users. Rare reports of allergic reactions. Stop use and consult a physician if significant GI symptoms develop.

Pairs well with glutathione support stacks (Vitamin C, alpha-lipoic acid). NAC is itself a glutathione precursor. Avoid combining with high-dose other sulfur donors (methionine, SAM-e) without specific protocol guidance. No conflicts with most common daily supplements.

Take 1 capsule daily with food to minimize GI effects. Drink plenty of water. Can be split between meals if taking multiple capsules daily. Store tightly capped due to the sulfurous oxidation potential. Discontinue if rash or unusual symptoms develop.

Liver and antioxidant benefits typically emerge within 2-4 weeks of daily use. Respiratory mucolytic effects (thinner mucus) can be felt within days to 1 week. Mental health benefits (for obsessive-compulsive symptoms) typically require 4-12 weeks in clinical trials.