N‑Acetyl‑L‑cysteine (NAC) Powder is a stable, acetylated derivative of L‑cysteine that serves as a direct and highly bioavailable precursor to glutathione, the body's master intracellular antioxidant. This versatile ingredient offers a unique combination of antioxidant, anti‑inflammatory, and mucolytic properties, making it valuable across dietary supplements, pharmaceuticals, functional foods, and cosmetics. In supplements, NAC supports liver detoxification, immune function, respiratory health by breaking down mucus, and cognitive well‑being through oxidative stress modulation. In food processing, it acts as a dough conditioner to reduce gluten strength, while in personal care, it contributes to skin brightening and anti‑aging formulations. Our NAC powder meets ≥99% purity (HPLC) with strict batch‑to‑batch consistency, is fully compliant with GMP, Halal, Kosher, and ISO standards, and comes with complete COA, MSDS, and stability data. Backed by LANDNUTRA's full traceability and regulatory expertise, we offer flexible supply from 1kg lab samples to bulk orders, with tailored packaging and responsive technical support to accelerate your product development and global market entry.

Product Characteristics
High Purity – Assay ≥99.0% (HPLC) with batch‑to‑batch consistency.
Potent Antioxidant – Direct glutathione precursor – boosts intracellular antioxidant defense.
Multi‑Functional – Supports immune, liver, respiratory, and cognitive health.
Mucolytic Action – Breaks down mucus – ideal for respiratory formulations.
Versatile Applications – Supplements, functional foods, cosmetics (brightening/anti‑aging), and food processing (dough conditioner).
Excellent Processability – Water‑soluble, compatible with capsules, tablets, powders, effervescents, and liquids.
Benefits of Premier Nac Powder
1.Superior Antioxidant Support – Direct glutathione precursor – boosts cellular defense against oxidative stress.
2. Versatile Health Applications – Supports immune function, liver detoxification, respiratory health, and cognitive well-being.
3. Mucolytic Efficacy – Clinically proven to break down mucus – ideal for respiratory and sinus health products.
4. Multi-Industry Use – Suitable for supplements, functional foods, cosmetics (brightening/anti-aging), and food processing (dough conditioner).
5.Excellent Compatibility – Water-soluble and process-friendly – works in capsules, tablets, powders, liquids, and topical formulations.
6. Clean Label Ready – Non-GMO, allergen-free, and preservative-free – meets clean label demands.
Application Fields
1.Dietary Supplements – Antioxidant, immune support, liver detoxification, respiratory health, and cognitive function formulas (capsules, tablets, powders).
2.Functional Foods & Beverages – Fortified drinks, wellness shots, and nutrition bars – leveraging its antioxidant and mucolytic properties.
3.Cosmetics & Personal Care – Skin‑brightening, anti‑aging, and detoxifying serums, creams, and masks – formulated for oxidative stress protection.
4.Pharmaceutical Preparations – Respiratory medications (mucolytics), liver support therapies, and combination products for chronic oxidative conditions.
5.Food Processing – Dough conditioner in baked goods (crackers, biscuits) to reduce gluten elasticity
Production Process

Process: Raw Material Preparation → Acetylation Synthesis → Neutralization & Filtration → Purification & Refining → Crystallization & Drying → Milling, QC Testing & Packaging
Product Quality Advantage
High Purity – Assay ≥99.0% (HPLC) with minimal batch‑to‑batch variation and tightly controlled impurities.
Strict Heavy Metal Control – Pb, As, Hg and other metals meet global pharmacopoeia and food safety standards – safe and reliable.
Excellent Stability – Heat‑ and moisture‑resistant; shelf life up to 36 months under normal storage, reducing inventory losses.
Clean Microbial Profile – Total plate count, yeast/mold, and pathogens well within international limits – suitable for sterile formulations.
Complete Quality System – GMP, Halal, Kosher, and ISO 22000 certified with full supply chain traceability.
Full Documentation – Each batch includes COA, MSDS, stability data, and heavy metal reports – streamlining regulatory compliance.


Annual Capacity: 1,500 Tons | 15+ years of NAD+ precursor expertise
Professional ODM/OEM Services
We provide full OEM/ODM manufacturing for finished products using N‑Acetyl‑L‑cysteine (NAC) Powder as the active ingredient – from concept to commercial delivery, all under one roof.
① Finished Dosage Forms
• Capsules & Tablets – Precise dosing, excellent flowability for high‑speed compression; vegetarian or gelatin shells.
• Effervescent Tablets & Powders – Rapid dissolution with pleasant taste; ideal for on‑the‑go immune and respiratory support.
• Powder Blends – Stick packs, bulk tubs, or single‑serve sachets; can be combined with vitamin C, zinc, or other antioxidants.
• Softgels & Liquid Capsules – Oil‑based or suspension fills for enhanced stability and controlled release.
• Gummies & Chewables – Great taste with sugar‑free options; suitable for children and adults.
• Functional Beverages – Ready‑to‑drink shots, wellness tonics, and fortified drinks.
• Topical Formulations – Serums, creams, and masks for skin brightening and anti‑aging.
② Combination Options
• NAC + Vitamin C – synergistic antioxidant and immune support
• NAC + Zinc – respiratory health and immune defense
• NAC + Selenium – enhanced glutathione activity and cellular protection
• NAC + Glycine + Glutamine – direct glutathione precursor blend
• NAC + Quercetin – respiratory and anti‑inflammatory synergy
③ Additional Services
• Custom flavor development and taste‑masking (for chewables, effervescents, and liquids)
• Third‑party certification (Halal, Kosher, NSF)
• Stability testing (moisture, heat, light, and oxygen protection)
• Regulatory documentation for global market access (FDA, EU, CFDA)
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 experience in functional ingredients and NAD+ precursors. Vertically integrated from raw material sourcing to finished goods manufacturing. Batch‑specific COA including HPLC assay, LC-MS identification, heavy metals, and microbial limits. Technical support for formulation and stability.
FAQ
| Test Item | Specification | Typical Result | Test Method |
|---|---|---|---|
| Appearance | White to off‑white crystalline powder | Conforms | Visual |
| Assay (HPLC, dry basis) | ≥ 99.0% | 99.3% – 99.8% | HPLC |
| pH (1% solution) | 2.0 – 2.8 | 2.3 | pH Meter |
| Specific Rotation | +21.0° to +27.0° | +24.5° | Polarimeter |
| Loss on Drying | ≤ 1.0% | 0.35% – 0.65% | USP <731> |
| Residue on Ignition | ≤ 0.2% | 0.10% | USP <281> |
| Heavy Metals (as Pb) | ≤ 10 ppm | < 5 ppm | ICP‑MS / AAS |
| Lead (Pb) | ≤ 1 ppm | < 0.5 ppm | ICP‑MS |
| Arsenic (As) | ≤ 1 ppm | < 0.5 ppm | ICP‑MS |
| Mercury (Hg) | ≤ 0.1 ppm | < 0.05 ppm | ICP‑MS |
| Cadmium (Cd) | ≤ 1 ppm | < 0.5 ppm | ICP‑MS |
| Total Plate Count | ≤ 1,000 CFU/g | < 100 CFU/g | Plate Count Method |
| Yeast & Mold | ≤ 100 CFU/g | < 10 CFU/g | Plate Count Method |
| E. Coli | Negative | Negative | Microbial Limit Test |
| Salmonella | Negative / 10g | Negative | Microbial Limit Test |
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