GHK-Cu 100mg
Double-strength copper peptide vial for intensive skin rejuvenation, collagen stimulation, and advanced anti-aging protocols.
Key Benefits
- 100mg total dose — double the standard vial for extended protocols
- Stimulates collagen and elastin synthesis for firmer, denser skin
- Reduces appearance of fine lines, wrinkles, and skin laxity
- Supports hair follicle health and may reduce thinning
All sales are final — no returns or refunds. See policy
Discreet, insulated shipping. All peptides are shipped cold-packed to preserve potency. Arrives within 2–5 business days.
About GHK-Cu 100mg
GHK-Cu 100mg delivers double the active copper peptide complex in a single vial — the go-to choice for experienced users who want to extend their protocol without frequent reordering, or those running higher-dose skin rejuvenation stacks. GHK-Cu (Glycyl-L-histidyl-L-lysine copper complex) is the gold standard of anti-aging peptides, with its striking blue color confirming the presence of the active copper-peptide bond. Concentrations decline dramatically after age 20, driving visible aging signs including loss of firmness, collagen breakdown, and reduced wound healing. The 100mg vial allows for flexible reconstitution — from higher-concentration formulas for subcutaneous protocols to more dilute solutions for topical or intradermal use — all from a single, long-lasting supply.
Quick Facts
- FormLyophilized Powder
- Storage2–8°C Refrigerated
- GradeResearch / Clinical
- Purity≥ 98%
Disclaimer
Not intended to diagnose, treat, cure, or prevent any disease. Consult a licensed healthcare provider before use.
Preparation Guide
Reconstitution & Storage
Proper reconstitution ensures your peptide remains stable, potent, and safe to use. Follow these steps carefully each time you prepare a new vial.
BAC Water to Add
5–10 mL
Resulting Concentration
10–20 mg/mL
Typical Dose Volume
0.05 – 0.2 mL per dose (1–2 mg)
Shelf Life After Reconstitution
30 days
Step-by-Step Reconstitution
Wash & Prep
Wash hands thoroughly with soap and water. Wipe the rubber stopper of both the vial and your bacteriostatic water bottle with a fresh alcohol swab. Allow to air-dry for 30 seconds.
Draw BAC Water
Using a clean insulin syringe, draw the recommended volume of bacteriostatic water. Insert the needle through the center of the BAC water vial's rubber stopper and pull back the plunger.
Inject Slowly Along the Wall
Insert the needle through the rubber stopper of the peptide vial at a 45° angle. Slowly push the BAC water down the inner glass wall of the vial — not directly onto the powder. This prevents frothing and denaturation.
Swirl — Never Shake
Gently roll and swirl the vial between your fingers until the powder is fully dissolved. Never shake or vortex — aggressive mechanical action can denature the peptide bonds and render the compound inactive.
Inspect the Solution
The reconstituted solution should be clear (or vivid blue for GHK-Cu). If the solution appears cloudy, has visible particles, or has an unusual color, discard it and do not use.
Label & Refrigerate
Write today's date on the vial. Store immediately in the refrigerator at 2–8°C. Never leave reconstituted peptides at room temperature for extended periods.
Shelf Life After Reconstitution
30 days
After adding bacteriostatic water, use within 30 days. Always write the reconstitution date on the vial. Discard any unused solution after this period.
Sealed Vial Storage
Up to 24 months (sealed, room temp)
Room temperature (15–25°C), protect from light
After Reconstitution
Refrigerate at 2–8°C
Refrigerate at 2–8°C. Do not freeze. The vivid blue color is completely normal and confirms active copper complexation.
Product Notes
Add less bacteriostatic water (5mL) for a higher concentration injectable solution, or more (10mL) for a more dilute topical spray. Swirl gently — never shake. Blue color is expected and confirms activity.
Never shake the vial. Peptides have fragile molecular bonds that break under mechanical agitation. Shaking causes denaturation and can make the compound inactive. Always swirl gently.
Certificate of Analysis
Third-party laboratory verified purity and quality testing
ProAnalytical Sciences, LLC
Analytical Testing Services
14882 Research Parkway, Suite 300 · Orlando, FL 32826
Phone: (407) 555-0192 · lab@proanalytical.com
Document Type
Certificate
of Analysis
Cert No: COA-RJL-GHK100-2026-0312-2026
Product Information
Document Information
Analytical Test Results
| # | Test Parameter | Specification | Result | Method | Status |
|---|---|---|---|---|---|
| 01 | Appearance | White to off-white lyophilized powder | Blue crystalline powder (characteristic copper complex color) | Visual | PASS |
| 02 | Identification (MS) | Matches reference standard | Confirmed — [M+H]⁺ = 403.1 m/z (copper isotope pattern confirmed) | LC-MS/MS | PASS |
| 03 | HPLC Purity | ≥ 98.0% | 99.2% | RP-HPLC | PASS |
| 04 | Water Content | ≤ 6.0% | ≤ 4.0% (Karl Fischer) | Karl Fischer | PASS |
| 05 | Residual Solvents | ICH Q3C limits | Meets ICH Q3C — no residual solvents detected | GC-Headspace | PASS |
| 06 | Microbial Limits | TAC < 100 CFU/g; No pathogens | Total aerobic count: < 100 CFU/g | Endotoxin: < 1 EU/mg | USP <61>/<62> | PASS |
| 07 | Bacterial Endotoxins | < 1 EU/mg | < 0.5 EU/mg — Conforms | LAL (Limulus Amebocyte) | PASS |
| 08 | Solubility | Freely soluble in water | Freely soluble in water — forms vivid blue solution | Gravimetric | PASS |
Tests & Certifications Included in This Report
This Certificate of Analysis certifies that the above-referenced product has been tested in accordance with the stated methods and specifications. All analytical results meet or exceed the stated specifications. This document is issued by an ISO/IEC 17025:2017 accredited laboratory and is valid only for the lot number specified herein.
Dr. Marcus T. Hale, Ph.D.
Director of Analytical Chemistry
ProAnalytical Sciences, LLC
Date: March 12, 2026
Dr. Yvonne R. Strauss, Ph.D.
Quality Assurance Manager
ProAnalytical Sciences, LLC
Date: March 12, 2026
This document is confidential and intended solely for the named customer. Results relate only to the specific lot tested. Reproduction or unauthorized distribution is prohibited. For questions contact: lab@proanalytical.com
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COA-RJL-GHK100-2026-0312-2026
Verified Customer Reviews
Real People, Real Results
5.0
2 verified reviews
“100mg lasts so much longer — love it”
Switched to the 100mg vial and I'm getting almost 3 months out of one vial. Same stunning skin results as the 50mg but way better value. My skin looks younger than it has in 15 years.
Kimberly A.
Atlanta, GA
March 2025
“Best value per mg for sure”
If you're already committed to GHK-Cu, the 100mg is the obvious choice. I'm saving over 30% per dose vs the smaller vial and the results are exactly the same. Highly recommend Rejuven.
Nicole P.
Boston, MA
February 2025
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