N Acetyl L Carnosine Powder

N-Acetyl-L-Carnosine (NAC) Powder is a pure antioxidant that can be included in eye drops

Pharmaceutical-Grade | 99% or higher Purity | cGMP Certified 

N Acetyl L Carnosine Powder is a stable and highly bioavailable carnosine derivative specifically designed for ocular use. Shaanxi Hongda utilizes its core "enzymatic directional acetylation + five-stage membrane purification" technology to ensure a purity greater than 99.0% (HPLC). We provide not only raw materials, but also strategic assets to support your brand's entry into the "dry eye repair," "optic nerve protection," and "systemic anti-glycation" markets. Our pharmaceutical-grade powder has a purity of at least 99% (HPLC verified) and boasts the following superior efficacy:

Cataract care: Slows down the oxidation of proteins in the lenses of the eyes  
Help for presbyopia: Helps the lens stay flexible as you become older.
Dry eye treatments make the tear film more stable.

Each batch is made in facilities that are cGMP and ISO certified, and they are all put through strict testing for heavy metals, endotoxins (<0.2 EU/mg), and leftover solvents.

Why Our NAC Powder Stands Out

Science-Backed Stability

• Even in liquid forms, it doesn't break down or oxidize.
• Batches full of nitrogen make sure they last for 24 months.

Enhanced Bioavailability

• Superior corneal penetration for targeted action.
• Compatible with hyaluronic acid and preservative-free systems.

Global Compliance Ready

• Pre-audited for FDA, EU GMP, and ISO 13485 compliance.
• DMF/CEP filings accelerate regulatory approvals.

Extremely High Aqueous Humidity Penetration and Enzymatic Stability:

Hongda's NAC, through acetyl protection technology, significantly enhances lipid solubility, achieving a 25% higher conversion efficiency than ordinary carnosine, resulting in extremely high bioavailability in end-use eye drops.

Exclusive "Eye-Grade" Impurity Removal:

Hongda performs batch-to-batch individual impurity scanning to strictly control acetic acid residue and unreacted precursors, ensuring no irritation or allergic reactions in eye applications. It is an ideal choice for high-end artificial tears and anti-aging eye creams.

Technical Specifications

Key Benefits

✅ Enhanced Stability 

• - Resists enzymatic degradation  
• - 24-month shelf life when stored at 2-8°C  

✅ Superior Bioavailability 

• - Optimized for corneal penetration  
• - Water-soluble for easy formulation  

✅ Global Compliance 

• - FDA DMF on file  
• - Meets USP/EP/ICH standards  
• - Kosher/Halal options available  

✅ Custom Solutions  

• - Particle size can be changed (10–100µm)  
• - Packaging in bulk, from 1 kg bags to 100 kilogram drums 

Applications: Precision Meets Performance

1. Cataract Management

The treatment slows down the aggregation of proteins in the tissues of the lens.

2. Presbyopia Relief

It enhances the elasticity of age-related formulations.

3. Dry Eye Therapies

N Acetyl L Carnosine Powder provides support for the stability of the tear film and the hydration of the surface.

The Hongda phytochemistry Difference: Purity You Can Trust

Our N-Acetyl L-Carnosine Powder is tested by a third party to make sure it is 99.8% pure (no fillers or other substances).
✅ Stable and bioavailable: The acetylated form gets through cell membranes faster. 
✅ Ethically Sourced: No gluten, GMOs, or animal products.

Certification

We hold multiple international certifications, validating our commitment to quality and sustainability.

Made to Fit Your Formulation Needs

• Custom Mixes: Mixed ahead of time with excipients like trehalose and preservatives that don't include BAK.
• Particle sizing: changes to make things dissolve faster or last longer.
• Bulk Packaging: From 1 kg trial packs to 100 kg drums with vacuum sealing.

FAQ

Q: What is the fundamental difference between NAC and regular L-carnosine in ophthalmic applications?

A: The key lies in penetration depth. L-carnosine is easily destroyed by enzymes in the aqueous humor and can hardly reach the lens. NAC, on the other hand, has "produce drug" properties, allowing it to safely cross the cornea and exert a long-lasting effect inside the eye.

Q: How do you ensure that the raw materials do not precipitate or discolor in aqueous formulations?

A: We remove trace metal ions and organic impurities through a three-stage freeze-recrystallization process. These impurities are usually the main cause of formulation discoloration and instability. Hongda's NAC has excellent light transmittance and physicochemical stability.

Q: Why are your specifications so strict regarding heavy metal control?

A: Because NAC is widely used in ophthalmic and injectable formulations. Even an excess of 1 ppm can cause eye irritation. We perform a full ICP-MS scan to ensure safety meets the 2026 global clinical-grade standards.

Q: How do we verify purity?

A: Every batch includes HPLC-validated COAs with impurity profiles.

Q: Can I get stability data?

A: Yes! We provide 24-month accelerated stability reports.

Q: Is it compatible with preservatives?

A: Tested for compatibility with BAK, EDTA, and common excipients.

Q: Do you offer formulation support?

A: Our R&D team assists with solubility, pH adjustment, and sterility methods.

Ready to Elevate Your Ocular Formulations?

🔍 Request a Sample

Request our N Acetyl L Carnosine Powder risk-free by placing a 1 kg trial order.

📊 Get a Custom Quote

Bulk pricing and fast-track shipping are available.

Need more details? Reach our experts at duke@hongdaherb.com.