Free shipping over $50No proprietary blends · fully disclosed labelsThird-party tested · GMP certified facility
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4.7
out of 5
Sleep quality went up almost immediately, which is exactly what I wanted. Blends smooth in seconds; texture is consistent every scoop. Smooth flavor with no weird aftertaste, which is rare in this category. Felt overpriced once I did the math on cost per dose.
Saw a real difference in my hair and nails within a month — not placebo, measurable. Resealable tub keeps everything fresh and the scoop sits right on top.
Label is clear about dosing and the bottle doesn't take up much shelf space. The price-to-quality ratio here is hard to beat; I've already reordered twice. Clean ingredient list with no fillers I didn't recognize — exactly what I look for.
For what you pay, the ingredient quality is excellent. Honestly tastes like a treat rather than a chore.
Packaging is sturdy and resealable. The product itself is high quality and mixes effortlessly.
A few weeks in and I can tell the difference in my energy and recovery. Solid product.
Showing 6 of 27 reviews
Klaire Labs. N-Acetyl-L-Cysteine is an amino acid precursor to glutathione. This hypoallergenic* product supplies 500 mg of N-Acetyl-L-Cysteine per vegetarian capsule. Glutathione assists detoxification, provides cellular antioxidant protection, and is may be a safer often for some people than cysteine.* Free of the following common allergens: milk/ casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. Contains no artificial colors, flavors, or preservatives. Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.