Semax US Warehouse | Cosmetic Peptides | 99% Purity | 5mg 10mg Vials | Lyophilized Powder

Sales manager：Nico
WhatsApp：+86 158 0329 3896
Email：nico@sjzenshi.com

These products are APIs (Active Pharmaceutical Ingredient) and not a finished drug. 

It is intended strictly for research and laboratory use only.

Buyers are required to fully comply with all applicable laws and regulations regarding the handling and use of this material.

1. Ultra-High Purity
Each batch is synthesized and purified to >99% purity (HPLC), ensuring reliable and reproducible results in sensitive experiments.

2.Accurate Dosing & Consistency
Our peptides are precisely weighed and vacuum-sealed under sterile conditions. Batch-to-batch consistency is rigorously maintained.

3.Endotoxin-Free & Sterile Processing
Manufactured in a cleanroom environment, our peptides are free from endotoxins, microbial contamination, and other impurities that could interfere with cell-based or in vivo studies.

1. Expertise in Peptide Synthesis

Extensive Experience: 7 Years of expertise in synthetic peptide development.

Skilled Team: Experts in solid-phase and liquid-phase synthesis.

2. Advanced Manufacturing Capabilities

Cutting-Edge Facilities: High-precision equipment ensuring purity and bioactivity.

Scalable Production: From milligram-scale research peptides to multi-kilogram industrial batches.

3. Innovation & Customer Commitment

Reliable Supply Chain: Competitive pricing & timely global delivery.

Global Reach: Trusted by researchers, pharmaceutical firms & industrial clients worldwide.

  Who We Serve

-We proudly work with clients across North America, Europe, Asia, and Latin America, including:

-Biotech and pharma firms

-Research institutions & universities

-Peptide formulation startups

-CDMOs and CRO partners

1. Superior Product Quality

Product quality is the foundation of our business.  Peptides are synthesized using solid-phase peptide synthesis (SPPS), then purified through HPLC and confirmed by mass spectrometry (MS).

Each batch includes a Certificate of Analysis (COA) with key data:
• Purity (HPLC)
• Molecular weight (MS)
• Water content
• Residual solvents
• Microbial limit (if applicable)

For clients with higher regulatory demands, we also provide third-party testing reports, endotoxin (LAL) data, and stability studies upon request.

2. Customization & R&D Support

We offer flexible custom synthesis services, supported by an experienced R&D team. Whether you’re looking for novel peptide sequences, cosmetic-grade purity, or modified molecules (e.g., PEGylation, acetylation), we can deliver high-quality results on time.

Our services include:
• Custom peptide synthesis (mg to kg scale)
• Peptide modifications and labeling
• Small molecule synthesis
• Project-based research and scale-up

We work closely with our clients to ensure technical feasibility, fast delivery, and cost control throughout the development cycle.

3. Wide Product Portfolio

We supply a comprehensive and expanding product range:
• Peptides: GLP-1 analogs (e.g., Semaglutide, Tirzepatide, Retatrutide), cosmetic peptides (e.g., Acetyl Hexapeptide-8, Matrixyl), anti-aging peptides, research peptides.
• Small Molecules: Nootropics, NAD+ boosters (e.g., NMN, NR, NADH), and intermediates.
• Biochemicals: Amino acid derivatives, enzyme co-factors, custom reagents.

New products are launched regularly to meet evolving market needs. We also support batch reservations for clients with ongoing or seasonal demand.