PRAXAR CLINICAL BIOCHEMISTRY • VERIFIED >99% HPLC PURITY • TEMPERATURE-CONTROLLED DISPATCH
Praxar
Praxar Clinical Formulations

High-Purity Peptide Formulations. Verified by Analytical Chromatography.

Precision-synthesized peptide compounds formulated for maximum bioactivity. Every batch is manufactured under automated solid-phase synthesis and independently verified by reverse-phase HPLC and mass spectrometry.

Analytical Threshold ≥ 99.0% HPLC Purity
Thermal Protocol -20°C Cold-Chain Packaging
Documentation Individual Lot COA Included
PRX-GHK-050 99.7% HPLC
Cosmetic & Copper Peptides

GHK-Cu (50mg)

Stoichiometric 1:1 complex of the human tripeptide glycyl-L-histidyl-L-lysine with divalent copper(II). Characteristic royal blue crystalline lyophilized powder verified ≥99.7% purity by HPLC.

Net Quantity 50mg Sterile Vial
Storage -20°C Cold-Chain Controlled
Unit Price
$69.00 / vial
In Stock
Specs
Biological Science & Synthesis

Understanding Peptides: Mechanisms, Synthesis, and Purity

Peptides are short chains of amino acid residues linked by peptide bonds. They function as targeted biological signaling molecules that direct cellular activity with high receptor specificity.

01 / SIGNALING ARCHITECTURE

Cellular Receptor Specificity

Unlike broad-spectrum compounds or traditional oral supplements that require liver first-pass metabolism, peptides bind selectively to defined cell surface receptors. This initiates precise intracellular signaling cascades—such as angiogenic tissue repair, actin filament stabilization, or incretin receptor activation.

02 / CHEMICAL PURITY

Why ≥ 99% HPLC Purity Matters

During peptide synthesis, incomplete coupling can create truncation isomers and deletion sequences. These impure fragments can occupy receptor sites without activating the intended biological cascade. Praxar utilizes preparative Reverse-Phase HPLC to isolate the target peak, certifying each lot above 99.0% chemical purity.

03 / STABILITY PROTOCOL

Lyophilization & Thermal Control

In liquid aqueous solution, peptides are susceptible to hydrolytic cleavage and deamidation over time. To ensure maximum stability, our formulations are freeze-dried (lyophilized) into solid cakes under an inert nitrogen vacuum, protecting tertiary structure until reconstitution.

Analytical Standards & Batch Verification

Test Parameter Analytical Methodology Specification Compliance
Chemical Purity RP-HPLC (C18 Column, 214nm detection) ≥ 99.0% Area Pass (Individual COA)
Molecular Mass Verification Electrospray Ionization Mass Spectrometry (ESI-MS) ± 1.0 Da of Theoretical Mass Pass (Verified Sequence)
Physical Form Visual Inspection Sterile Lyophilized Cake / Powder Pass (Nitrogen Sealed)
Storage & Transit Thermal Monitoring -20°C Cold-Chain Packaging Pass (Temperature Controlled)
Frequently Asked Questions

Clinical Formulation & Technical FAQs

What is the standard purity threshold for Praxar peptide formulations? ↓

All Praxar formulations are certified to exceed 99.0% chemical purity, verified via Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) and electrospray ionization mass spectrometry (ESI-MS). Each order includes an individual batch Certificate of Analysis (COA).

How should lyophilized peptides be stored prior to reconstitution? ↓

Lyophilized peptide vials should be maintained frozen between -20°C and 4°C protected from direct sunlight. They are vacuum sealed under an inert nitrogen atmosphere to prevent oxidation and hydrolytic degradation.

How are peptide solutions reconstituted? ↓

Peptides should be reconstituted using sterile bacteriostatic water introduced slowly down the inner glass wall of the vial, followed by gentle swirling without shaking. Once reconstituted into solution, store refrigerated between 2°C and 8°C.