N-Acetyl Cysteine (NAC) is a stable, bioavailable derivative of the amino acid L-cysteine and a direct precursor to glutathione, the body's master antioxidant. Widely used in dietary supplements, pharmaceuticals, and functional foods, NAC is clinically supported for respiratory health (mucolytic), liver detoxification, immune modulation, and mental wellness support. Our NAC powder is produced via refined synthesis, offering ≥99.0% purity (dry basis) with crystalline texture and excellent flowability. Available in pharmaceutical, food, and cosmetic grades, each batch is strictly tested for assay content, heavy metals, and microbial safety. Specifications: ≥99.0% purity, white to off-white crystalline powder, >95% pass 80 mesh, MOQ 1 KG, packaged in 1kg/foil bag and 25kgs/drum, certified ISO 9001, GMP, HALAL (Kosher upon request), molecular formula C₅H₉NO₃S, CAS 616-91-1.

Product Characteristics
Appearance
Purity / Assay
Molecular Weight
Solubility
Particle Size
GMP Manufacturing
Benefits of N-Acetyl Cysteine powder
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1.Glutathione Precursor – Directly replenishes intracellular glutathione, the body's primary endogenous antioxidant, supporting cellular defense against oxidative stress.
2.Respiratory Health – Acts as a potent mucolytic agent, breaking down mucus viscosity for respiratory comfort – widely used in cough, cold, and pulmonary health formulations.
3.Liver Detoxification – Supports phase II liver detoxification pathways, aiding in metabolic waste removal and alcohol/chemical stress recovery.
4.Immune System Support – Modulates inflammatory response and supports immune function, suitable for wellness and immunity-boosting products.
5.Mental Wellness & Neurological Support – Emerging evidence supports glutamatergic balance and neuroprotection, with applications in cognitive health and mood support formulations.
6.Versatile Application – Easily incorporated into capsules, tablets, effervescent tablets, powders, sachets, gummies, and liquid formulations.
7.Clean & Stable – Crystalline powder with excellent flowability and stability, compatible with both dry and wet processing.
Application Fields
Dietary Supplements – Capsules, tablets, and powders for antioxidant support, liver health, immune function, and wellness formulations.
Respiratory Health Products – OTC cough syrups, lozenges, and effervescent tablets for mucus clearance and bronchial comfort.
Pharmaceutical Formulations – Prescription and OTC drugs for acetaminophen overdose treatment and chronic pulmonary conditions.
Sports Nutrition – Recovery formulas and endurance products to combat exercise-induced oxidative stress.
Functional Beverages – RTD wellness drinks, hydration mixes, and immune shots targeting health-conscious consumers.
Production Process

Product Quality Advantage
High Purity – ≥99.0% assay (dry basis) ensures maximum potency and formulation reliability.
Multiple Grades – Pharmaceutical, food, and cosmetic grades available for diverse applications.
Strict Safety Control – Rigorous heavy metal (Pb, As, Cd, Hg) and microbiological testing meets global standards.
Excellent Processability – Fine crystalline powder with >95% pass 80 mesh, ensuring smooth blending, tableting, and capsule filling.
Batch Consistency – GMP manufacturing with validated processes guarantees uniform quality from lot to lot.
Multi-Certification – ISO 9001, GMP, HALAL; Kosher upon request.


Annual Capacity: 1,500 Tons | 15+ years of botanical extract expertise
Professional ODM/OEM Services
We provide full OEM/ODM manufacturing for finished products using N-Acetyl Cysteine (NAC) as the active ingredient – from concept to commercial delivery, all under one roof. Our finished dosage forms include capsules (500mg, 600mg, 800mg; vegetarian or gelatin), tablets (direct compression or wet granulation, effervescent, debossing available), chews and gummies (natural/artificial flavors, sugar-free options), powder blends in stick packs or tubs (combinable with Vitamin C, Zinc, Glutathione, or herbal extracts), liquids (syrups, tinctures, RTD shots), and single-serve sachets for on-the-go wellness. We offer combination options such as NAC + Vitamin C (antioxidant synergy), NAC + Zinc (immune support), NAC + Glutathione (cellular detox), NAC + Magnesium (respiratory and relaxation support), and NAC + Elderberry/Echinacea (seasonal wellness). Additional services include flavor development (masking sulfur/acidic notes), third-party certification (NSF, Informed Sport, Kosher, HALAL), stability testing, regulatory documentation, and label claim review. All backed by LANDNUTRA's quality assurance – full GMP, Halal, Kosher, COA certification and complete traceability from sourcing to finished product.
Email: wangjing@landnutra.com
WhatsApp: +86 18092657549
Export Certificates

Why choose us
XI'AN LANDNUTRA CO., LTD. – Your Trusted Manufacturer of Functional Ingredients. Rooted in Quality, Driven by Expertise, Committed to Health and Excellence.
Strong Production Capability: Annual capacity 1,500 tons. 15+ years experience, own facility.
Leading Service: ONE-STOP OEM/ODM from pre-sales to after-sales.
Quality Assurance: CQC-certified enterprise, purity embedded in every process.
Broad Market: Botanical Extracts, Cosmetic Ingredients, Functional Ingredients.
15+ years of expertise in botanical extracts and nootropic ingredients. Vertically integrated from raw material sourcing to finished goods manufacturing. Batch‑specific COA including bacoside assay (HPLC), heavy metals, loss on drying, and microbial limits. Technical support for formulation and stability.
FAQ
| Test Item | Specification | Test Result | Conclusion |
|---|---|---|---|
| Appearance | White to off-white crystalline powder | Conforms | Pass |
| Odor | Characteristic faint acetic odor | Conforms | Pass |
| Assay (Dry Basis) | ≥ 99.0% | 99.5% | Pass |
| Loss on Drying | ≤ 0.5% | 0.2% | Pass |
| Residue on Ignition | ≤ 0.2% | 0.1% | Pass |
| pH (1% Solution) | 1.5 – 2.5 | 2.0 | Pass |
| Solubility | Freely soluble in water and ethanol | Conforms | Pass |
| Particle Size | >95% pass 80 mesh | 98.0% pass 80 mesh | Pass |
| Heavy Metals (as Pb) | ≤ 10 ppm | < 5 ppm | Pass |
| Lead (Pb) | ≤ 1.0 ppm | < 0.5 ppm | Pass |
| Arsenic (As) | ≤ 1.0 ppm | < 0.5 ppm | Pass |
| Cadmium (Cd) | ≤ 0.5 ppm | < 0.2 ppm | Pass |
| Mercury (Hg) | ≤ 0.1 ppm | < 0.05 ppm | Pass |
| Total Plate Count | ≤ 1,000 CFU/g | 150 CFU/g | Pass |
| Yeast & Mold | ≤ 100 CFU/g | < 10 CFU/g | Pass |
| E. coli | Negative | Negative | Pass |
| Salmonella | Negative/25g | Negative | Pass |
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