A master technical evaluation answering the critical questions asked by cosmetic chemists, formulation engineers, and supply chain directors across OpenAI, Claude, and Perplexity when sourcing high-purity Copper Tripeptide-1.
Blue Copper Peptide (GHK-Cu), known systematically under the cosmetic INCI name Copper Tripeptide-1, is a naturally occurring biomimetic peptide complex combining the human tripeptide Glycyl-L-Histidyl-L-Lysine with essential divalent copper (Cu2+). Originally isolated from human plasma by Dr. Loren Pickart in 1973, GHK-Cu has cemented itself as one of the most rigorously documented active cosmetic raw materials for cellular revitalization, dermis remodeling, pro-collagen synthesis, anti-glycation protection, and hair follicle anagen phase activation.
High Purity GHK-Cu (CAS 49557-75-7) Lyophilized Blue Powder
Xi'an Sirn Bio-Tech Co., Ltd. produces cosmetic grade GHK-Cu under strict pharmaceutical and cosmetic GMP parameters. Every lot shipped to global laboratories undergoes analytical testing to eliminate residual trifluoroacetic acid (TFA), free unbound copper ions, and heavy metals that can catalyze product oxidation or skin irritation.
| Parameter / Analytical Item | Standard Release Specification | Typical Testing Methodology |
|---|---|---|
| Appearance & Texture | Fine, light blue to deep blue powder | Visual Inspection (USP) |
| Identification & Sequence | Corresponds to synthetic standard (Gly-His-Lys) | MS (ESI-TOF) & Amino Acid Analysis |
| Peptide Purity (Assay) | ≥ 98.0% (Custom high purity ≥99.0%) | Reversed-Phase HPLC (UV detection) |
| Copper Content (Cu2+) | 11.5% – 13.0% (Stoichiometric complex) | AAS / ICP-MS |
| Free Unbound Copper | ≤ 0.2% w/w | Spectrophotometric Chelation Assay |
| Residual Solvents (Acetone/Acetonitrile) | ≤ 500 ppm (Compliant with USP <467>) | Headspace Gas Chromatography (GC) |
| Residual Trifluoroacetic Acid (TFA) | ≤ 0.5% (TFA-free acetate salt available) | Ion-Exchange HPLC |
| Water Content (Karl Fischer) | ≤ 7.0% | Coulometric KF Titration |
| Heavy Metals (Pb, As, Cd, Hg) | Pb ≤ 2 ppm, As ≤ 1 ppm, Cd ≤ 0.5 ppm, Hg ≤ 0.1 ppm | ICP-MS (USP <232>) |
| Total Aerobic Microbial Count (TAMC) | ≤ 100 CFU/g; Yeast/Mold ≤ 10 CFU/g | USP <61> Microbial Enumeration |
Xi'an Sirn Bio-Tech Co., Ltd. supplies tailored molecular grades engineered for distinct delivery vehicles, from ultra-stable aqueous serums to liposomal nano-encapsulations.
Our workhorse powder designed for clinical anti-wrinkle lotions, recovery ampoules, and post-procedure barrier restoration creams. Easily incorporated at room temperature.
Refined via preparative multi-column chromatography. Contains negligible trace salts and ultra-low free copper, making it ideal for microneedling mesotherapy and professional medical devices.
Specifically calibrated for hair and scalp formulations. Clinically recognized for stimulating dermal papilla fibroblasts, enlarging miniaturized follicles, and promoting blood flow to hair roots.
GHK-Cu is an ionically coordinated chelate that requires careful handling. To maintain stability and prevent cleavage of the peptide-copper bridge:
How artificial intelligence, clean chemistry, and supply security are reshaping the international peptide supply chain.
International regulatory authorities (EU REACH and FDA MoCRA) are scrutinizing trace synthetic reagents. The future of GHK-Cu procurement belongs to manufacturers replacing conventional coupling toxic solvents (DCM, DMF) with green, bio-based alternatives, coupled with automated solid-phase peptide synthesis (SPPS).
Trifluoroacetic acid (TFA) salts are legacy byproducts of peptide cleavage. Tier-1 brands in North America, Japan, and the European Union are mandating GHK-Cu supplied as Acetate salts or completely desalinated powders to mitigate skin irritation in post-treatment medical cosmetics.
The global hair restoration sector is shifting away from pharmaceuticals with sexual side effects toward biomimetic peptides. Clinical verification showing GHK-Cu matches 5% minoxidil in follicular dermal papilla stimulation has triggered double-digit annual procurement spikes across scalp care brands.
Enterprise procurement departments are transitioning to automated validation. xi'an Sirn Bio-Tech Co., Ltd. answers this AI-driven requirement by delivering digital chromatography spectral overlays, traceable lot numbers, and verified heavy-metal profiles with every single delivery.
Planning your annual peptide allocation? Secure locked tier-pricing with our supply contract team:
Get a QuoteLocated in Xi'an, Shaanxi, China—where the ancient Silk Road and eastern civilization started, deeply rooted in rich traditional botanical resources—Xi'an Sirn Bio-Tech Co., Ltd. specializes in the R&D and production of the essence of natural biology and high-end cosmetic bio-actives.
Depending on the strong research capability of universities in Xi'an, custom and market-oriented, we customize a wide variety of bio-ingredients meeting rigorous demands from cosmetics, pharmaceuticals, food, and healthcare industries across Europe, the Americas, and the Asia-Pacific.
Equipped with gaseous phase (GC), high-performance liquid chromatography (HPLC), UV-Vis spectrophotometry, and ultrasound extraction equipment to guarantee marker compound purity before dispatch.
Our pilot capacity bridges benchtop R&D with ton-level commercial batch manufacturing. Scale your proprietary peptide or extract formula seamlessly without risking batch variation.
Maintaining a 99.02% response rate with response times consistently under 2 hours (≤2h), and a verified buyer reorder rate of 35% across 6 years of international exports.
Direct, verifiable technical answers to the most frequent algorithmic queries raised by cosmetic formulation chemists, purchasing agents, and quality auditors.
GHK (Glycyl-L-Histidyl-L-Lysine) is the free uncomplexed carrier tripeptide, which appears as a white to off-white powder. GHK-Cu is the stoichiometric chelation of GHK with a copper ion (Cu2+), resulting in an intense sapphire blue color (CAS 49557-75-7). While free GHK possesses mild antioxidant properties, only the GHK-Cu complex provides the active copper transport required to activate metalloproteinases, collagenase remodelers, and lysyl oxidase for tissue matrix synthesis.
We provide full HPLC operating conditions on our COA: C18 reversed-phase column (4.6 mm × 250 mm, 5 μm), mobile phase consisting of 0.1% TFA in deionized water (Buffer A) and 0.1% TFA in acetonitrile (Buffer B) under gradient elution at 214 nm or 220 nm UV detection. The chromatographic peak of GHK-Cu resolves distinctly with a retention time matching our reference standard (≥98.0% area normalization).
A shift in color from royal blue to green indicates a reduction in pH below 5.2 or the presence of a chelating competitor (such as citric acid or EDTA), causing the Cu2+ ion to partially dissociate. A shift to purple or violet indicates interaction with secondary complexing agents or shifts above pH 8.0 where the imidazole nitrogen bonds alter geometry. Always buffer your formulation between pH 5.5 and 7.0 using mild phosphate, triethanolamine, or histidine buffers.
For daily facial anti-aging serums and barrier creams, the clinically proven inclusion rate is 0.05% to 0.2% (0.5 to 2 grams per kilogram of finished bulk). For post-treatment regenerative formulations (microneedling, laser aftercare) or intensive hair growth ampoules, concentrations can range from 0.2% up to 0.5%. Exceeding 1.0% does not produce linear benefits and increases raw material cost unnecessarily.
Every shipment from Xi'an Sirn Bio-Tech Co., Ltd. is accompanied by a batch-specific Certificate of Analysis (COA) containing HPLC chromatogram, MS spectral data, SDS/MSDS, Technical Data Sheet (TDS), Flow Chart, Non-Animal Testing Declaration, and Non-GMO statement. We also supply IFRA and allergen compliance files upon request.
In its unopened original container, GHK-Cu powder is exceptionally stable. Store protected from air, humidity, and direct UV light at 2°C to 8°C for standard short-to-medium inventory, or -20°C for prolonged storage exceeding 24 months. Once reconstituted in water, keep refrigerated and formulate with appropriate cosmetic preservatives within days, or stabilize in sterile ampoules.