GLOW Blend
The GLOW Blend is a comprehensive healing peptide combination that brings together three powerful research compounds into a single vial: TB-500 (10 mg), BPC-157 (10 mg), and GHK- Cu (50 mg). This 70 mg total blend represents an advanced approach to tissue repair and regeneration by combining the Wolverine Stack (BPC-157 + TB-500) with the anti-aging and collagen-supporting properties of GHK-Cu (copper peptide). Each component serves a distinct purpose within the formulation:
- TB-500 (Thymosin Beta-4 Fragment): A synthetic version of a naturally occurring 43-
amino-acid protein that promotes cell migration, angiogenesis, and systemic tissue repair through actin regulation.
- BPC-157 (Body Protection Compound-157): A pentadecapeptide derived from human
gastric juice that promotes localized healing, growth factor signaling, and tissue protection through multiple complementary pathways.
- GHK-Cu (Copper Peptide): A naturally occurring tripeptide-copper complex that
supports collagen synthesis, gene expression modulation, and skin regeneration through copper-dependent enzymatic pathways. The name “GLOW” reflects the combination’s benefits for both internal healing and external appearance. While the Wolverine Stack focuses on injury recovery and tissue repair, the addition of GHK-Cu brings anti-aging, skin rejuvenation, and collagen support into the formulation. This product contains double the peptide content of the standard Wolverine Stack (10 mg each versus 5 mg each of BPC-157 and TB-500) plus a substantial 50 mg dose of GHK-Cu. None of these peptides are FDA-approved for human use. BPC-157 and TB-500 are prohibited by the World Anti-Doping Agency (WADA) under the S0 Unapproved Substances category.
Quick Reference
Property GHK-Cu BPC-157 TB-500 Amount per Vial 50 mg 10 mg 10 mg Amino Acids 3 (tripeptide) 15 43 (protein fragment) (pentadecapeptide) Molecular Weight 403.9 Da 1,419.5 Da 4,963 Da Primary Copper delivery, Growth factor Actin regulation, cell Mechanism gene expression signaling, migration modulation cytoprotection Primary Benefits Collagen synthesis, Localized healing, Systemic healing, anti-aging, skin gut protection, tissue angiogenesis, wound quality repair repair
Distribution Local and systemic Primarily localized Systemic (low MW) FDA Status Not approved Not approved Not approved (cosmetic use (Category 2) (Category 2) permitted)
How It Works
The GLOW Blend operates through multiple complementary mechanisms, with each peptide targeting different aspects of tissue repair and regeneration. Understanding how these three compounds work individually and synergistically provides insight into the blend’s comprehensive approach to healing and rejuvenation.
TB-500 Mechanisms: Systemic Repair Through Actin Regulation
TB-500 (Thymosin Beta-4 Fragment) works systemically through its interaction with monomeric actin (G-actin), the primary building block of the cellular cytoskeleton. TB-500 binds to and sequesters actin monomers, maintaining a reserve pool available for rapid cell mobilization when tissue damage is detected. This actin-sequestering function promotes cell migration over long distances, a property enhanced by TB-500’s relatively low molecular weight (4,963 Da), which allows it to travel efficiently through blood and tissues. TB-500 stimulates angiogenesis (new blood vessel formation), which is essential for delivering nutrients and oxygen to damaged tissues. During metabolism, TB-500 releases the anti- inflammatory tetrapeptide fragment Ac-SDKP, which contributes to inflammation management and fibrosis reduction. Importantly, TB-500 works throughout the body regardless of injection site, providing systemic regenerative support.
BPC-157 Mechanisms: Localized Healing and Tissue Protection
BPC-157 (Body Protection Compound-157) functions as an initiator and protector of the healing response. Its mechanisms include upregulation of vascular endothelial growth factor (VEGF) to promote blood vessel formation, modulation of nitric oxide (NO) synthesis for improved blood flow, and activation of the FAK-paxillin signaling pathway for cell migration and attachment. BPC-157 also increases growth hormone receptor expression in damaged tissues, amplifying the body’s regenerative signaling. A distinguishing feature of BPC-157 is its gastroprotective properties. Derived from a protein found in human gastric juice, BPC-157 supports stomach lining integrity, protects against NSAID-induced gut damage, and provides therapeutic benefit for inflammatory bowel conditions. When injected subcutaneously, BPC-157 tends to concentrate its effects near the injection site, making it particularly effective for targeted injury recovery.
GHK-Cu Mechanisms: Gene Expression Modulation and Copper Delivery GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) works through two primary mechanisms: delivery of bioavailable copper to tissues for enzyme activation and broad modulation of gene expression. Research by Pickart and Margolina (2018) demonstrated that GHK-Cu modulates the expression of over 4,000 human genes, generally shifting patterns toward healthier, more youthful states. Copper delivered by GHK-Cu serves as an essential cofactor for lysyl oxidase, an enzyme critical for collagen and elastin cross-linking. GHK-Cu stimulates fibroblast production of collagen, elastin, and glycosaminoglycans while regulating metalloproteinases for balanced collagen turnover. This dual action—promoting new collagen synthesis while ensuring proper remodeling of existing structures—supports high-quality tissue repair rather than disordered scar formation. GHK-Cu also provides significant antioxidant and anti-inflammatory effects through upregulation of cellular defense pathways.
Synergy in the GLOW Blend
The three peptides create a comprehensive healing environment by addressing different phases and aspects of tissue repair:
- Initiation (BPC-157): Calls in growth factors, protects tissues from further damage, and
establishes blood supply to damaged areas through VEGF upregulation and NO modulation.
- Mobilization (TB-500): Recruits repair cells, directs them to injury sites through actin-
mediated migration, and manages cellular reconstruction while providing systemic anti- inflammatory support via Ac-SDKP release.
- Remodeling (GHK-Cu): Provides the building blocks and enzymatic support for high-
quality tissue rebuilding, while modulating gene expression toward regeneration rather than scarring. This three-phase approach addresses acute tissue repair (BPC-157 + TB-500), systemic healing distribution (TB-500), collagen quality and skin appearance (GHK-Cu), anti-aging and tissue remodeling (GHK-Cu), inflammation management (all three peptides through different pathways), and angiogenesis support (all three through complementary mechanisms).
Benefits
Comprehensive Tissue Healing
The TB-500 and BPC-157 components provide the core healing benefits of the GLOW Blend:
- Accelerated tendon and ligament repair
- Faster muscle recovery following injury or intense training
- Enhanced wound healing with improved closure rates
- Improved post-surgical recovery
- Joint support and cartilage protection
- Reduced scar tissue formation through coordinated remodeling
Skin and Collagen Support
The GHK-Cu component adds substantial dermatological benefits:
- Increased collagen synthesis (up to 70% in laboratory studies)
- Improved skin thickness and density
- Enhanced skin elasticity and firmness
- Reduced appearance of fine lines and wrinkles
- Better skin hydration through glycosaminoglycan production
- Support for hair growth and thickness
Anti-Aging Benefits
GHK-Cu provides gene expression modulation that supports whole-body anti-aging:
- Shifts gene expression patterns toward more youthful states
- Supports DNA repair processes
- Provides antioxidant protection through upregulation of superoxide dismutase and other
defense enzymes
- Reduces age-related tissue degradation
Systemic Distribution
TB-500’s systemic properties mean the blend can support healing at multiple sites simultaneously, reach injuries regardless of injection location, and provide whole-body regenerative support. This is particularly advantageous in a blend format, as the systemic distribution of TB-500 complements BPC-157’s localized action and GHK-Cu’s tissue- remodeling effects.
Reduced Injection Site Reactions
When GHK-Cu and BPC-157 are combined, users often report reduced injection site irritation compared to GHK-Cu alone. The BPC-157 component appears to help moderate the histamine response that pure GHK-Cu can produce, making the blend more tolerable than standalone copper peptide injections.
Gut Health Support
The BPC-157 component provides gastroprotective benefits including stomach lining protection, support for inflammatory bowel conditions, and protection against NSAID-induced gut damage. While subcutaneous injection provides some systemic gut support, oral BPC-157 remains more targeted for gut-specific concerns.
What the Science Shows
Research on the individual components of the GLOW Blend is extensive. No studies have examined this specific three-peptide combination, but research on each peptide supports the rationale for combining them.
BPC-157 Research
Study 1: Gwyer et al. – Cell and Tissue Research (2019) Design: Systematic review of BPC-157’s effects on musculoskeletal soft tissue healing, analyzing available preclinical data across multiple tissue types including tendons, ligaments, muscles, and bones. Results: BPC-157 demonstrated consistent promotion of healing across musculoskeletal soft tissues with few reported adverse reactions. The compound showed particular promise for healing hypovascular tissues (tissues with poor blood supply) that traditionally present significant clinical challenges. Significance: Established BPC-157 as a promising candidate for soft tissue repair with a favorable safety profile, supporting its inclusion in regenerative peptide blends. Study 2: Chang et al. – Journal of Applied Physiology (2011) Design: In vitro and in vivo study examining BPC-157’s effects on tendon healing, specifically evaluating cell outgrowth from tendon explants, cell survival under stress conditions, and cell migration mechanisms. Results: BPC-157 significantly promoted tendon healing through enhanced cell outgrowth from tendon explants, improved cell survival under oxidative stress, and increased cell migration via activation of the FAK-paxillin signaling pathway. Significance: Identified a specific molecular mechanism (FAK-paxillin pathway activation) through which BPC-157 promotes tissue repair, providing mechanistic support for its use in injury recovery protocols.
TB-500 Research
Study 3: Malinda et al. – Journal of Investigative Dermatology (1999) Design: Preclinical wound healing study evaluating the effects of topical thymosin beta-4 application on full-thickness dermal wounds in a rat model, measuring re-epithelialization, wound contraction, and collagen deposition at multiple time points. Results: Thymosin beta-4 increased re-epithelialization by 42% at day 4 and up to 61% at day 7 compared to controls. Wound contraction was also improved, and collagen deposition was enhanced in treated wounds. Significance: Provided early quantitative evidence for thymosin beta-4’s wound-healing properties, demonstrating clinically meaningful improvements in tissue repair rates. Study 4: Bock-Marquette et al. – Nature (2004) Design: Preclinical study investigating thymosin beta-4’s role in cardiac repair, examining its effects on integrin-linked kinase (ILK) activation, cardiac cell migration, and cell survival following myocardial injury. Results: Thymosin beta-4 activated integrin-linked kinase and promoted cardiac cell migration, improved cell survival under stress conditions, and supported cardiac repair following injury. Significance: Published in Nature, this study established thymosin beta-4 as a significant regulator of cell survival and tissue repair, demonstrating effects beyond simple wound healing into cardiac regeneration.
GHK-Cu Research
Study 5: Pickart and Margolina – International Journal of Molecular Sciences (2018) Design: Comprehensive review of GHK-Cu’s effects on gene expression using the Broad Institute Connectivity Map (cMap) database, analyzing genome-wide expression changes induced by GHK-Cu treatment. Results: GHK-Cu was found to modulate the expression of over 4,000 human genes, generally shifting patterns toward healthier states. Affected pathways included antioxidant defense, anti- inflammatory response, DNA repair, and tissue remodeling. The analysis revealed that GHK-Cu suppresses genes associated with tissue destruction and inflammation while upregulating genes associated with tissue regeneration. Significance: Established GHK-Cu as one of the most broadly acting regenerative peptides identified to date, with gene expression effects that extend far beyond simple collagen stimulation. Study 6: Maquart et al. – Journal of Clinical Investigation (1993) Design: In vivo study examining the effects of the GHK-Cu complex on connective tissue accumulation in rat experimental wounds, measuring collagen synthesis, glycosaminoglycan production, and overall wound healing rates. Results: GHK-Cu increased collagen synthesis approximately 9-fold in treated wounds with significantly accelerated healing. Glycosaminoglycan production and overall connective tissue accumulation were also substantially enhanced. Significance: Published in the Journal of Clinical Investigation, this landmark study provided foundational evidence for GHK-Cu’s potent effects on collagen synthesis and wound healing, establishing the scientific basis for its use in tissue repair and anti-aging applications. Additional Evidence: Multiple facial studies have demonstrated that GHK-Cu increases skin density, thickness, firmness, and reduces fine lines over 8- to 12-week treatment periods, supporting its dermatological applications in the GLOW Blend.
Dosing Protocol
Important: None of the peptides in the GLOW Blend are FDA-approved for human use. The following dosing information is based on commonly referenced research protocols and community experience. Any use should be under the supervision of a qualified healthcare provider.
Standard Protocol
Parameter Recommendation Notes Frequency Daily or every other Subcutaneous injection day Cycle Length 4 to 8 weeks For injury recovery and tissue repair focus (Healing) Cycle Length (Anti- 8 to 16 weeks For collagen support and skin rejuvenation Aging) focus Break Between 4 to 6 weeks Allows receptor sensitivity to reset
Cycles
Dose Calculation
The GLOW Blend vial contains 70 mg total (TB-500 10 mg + BPC-157 10 mg + GHK-Cu 50 mg). Reconstituted with 2 mL of bacteriostatic water, the resulting concentration is 35 mg/mL total. Per mL concentration breakdown:
- BPC-157: 5 mg (5,000 mcg) per mL
- TB-500: 5 mg (5,000 mcg) per mL
- GHK-Cu: 25 mg per mL
Draw Volume Reference
Volume Units BPC-157 TB-500 GHK-Cu 0.05 mL 5 units 250 mcg 250 mcg 1.25 mg 0.10 mL 10 units 500 mcg 500 mcg 2.5 mg
At 10 units (0.10 mL) daily, one vial lasts approximately 20 days. At 5 units (0.05 mL) daily, one vial lasts approximately 40 days.
Dosing by Application
Injury Recovery Plus Appearance:
- Daily injection for 4 to 6 weeks
- Addresses both healing and skin quality simultaneously
- 10 units daily recommended for active injury recovery
Anti-Aging and Maintenance:
- Every other day or 3 times weekly for 8 to 16 weeks
- Focus on collagen support and gene expression modulation
- 5 to 10 units per injection
Post-Surgical With Skin Healing:
- Daily injection starting post-surgery (with surgeon approval)
- Supports wound healing and minimizes scarring
- Continue for 4 to 8 weeks depending on surgical recovery timeline
Twice Weekly Maintenance:
- 5 to 10 units twice weekly
- Allows extended vial duration for long-term anti-aging protocols
- Suitable for maintenance after an initial loading phase
Reconstitution Instructions
Materials Needed:
- GLOW Blend vial (lyophilized powder)
- Bacteriostatic water (2 mL recommended)
- Sterile syringe for reconstitution
- Alcohol swabs
Step-by-Step Instructions:
- Step 1: Wipe the vial stopper and bacteriostatic water vial with alcohol swabs.
- Step 2: Draw 2 mL of bacteriostatic water into a sterile syringe.
- Step 3: Insert the needle through the rubber stopper at an angle.
- Step 4: Let the water trickle slowly down the inside wall of the vial. Do not inject
directly onto the powder or shake vigorously.
- Step 5: Gently swirl the vial until the powder is fully dissolved.
- Step 6: The solution will have a distinctive blue color due to the GHK-Cu copper
content. This is normal and indicates the copper is properly bound to the GHK peptide.
- Step 7: If the solution is not blue or contains visible particles, do not use the product.
Administration
The GLOW Blend can be injected subcutaneously anywhere due to TB-500’s systemic distribution properties. Common injection sites include the abdomen (lower belly fat), thigh, and upper arm. If you have a specific injury, injecting near that area may maximize BPC-157’s localized effects while still receiving systemic benefits from TB-500.
Side Effects
The GLOW Blend combines three peptides with generally favorable safety profiles. Side effects are typically mild and similar to those reported with individual components.
Common Side Effects
Side Effect Frequency Notes Injection site reactions Common Primarily from GHK-Cu (redness, swelling, itching) component; often reduced when combined with BPC- Mild fatigue or lethargy Occasional Usually transient; may occur in first few days of use Nausea Uncommon Typically mild and self- limiting Headache Uncommon Usually mild; adequate hydration may help
GHK-Cu-Specific Considerations
The GHK-Cu component can cause histamine responses at injection sites, including redness, itching, and small bumps. However, when combined with BPC-157 in the GLOW Blend, these reactions are often less pronounced than with standalone GHK-Cu. Strategies to minimize injection site reactions include:
- Rotating injection sites (never use the same spot twice in a row)
- Allowing the solution to warm to room temperature before injecting
- Injecting slowly over 10 to 15 seconds
- Applying light pressure after injection
Theoretical Concerns
All three peptides promote angiogenesis through different pathways. This raises theoretical concerns about use in individuals with existing cancers or tumors, as new blood vessel formation could potentially support tumor growth. No evidence has directly demonstrated this risk in the context of peptide use, but caution is warranted, and individuals with a history of cancer should consult their oncologist before use.
Contraindications and Precautions
Do Not Use If You Have:
- Active cancer or tumors: Theoretical concern about angiogenesis promoting tumor
growth. All three peptides in the blend support blood vessel formation.
- History of malignancy: Consult an oncologist before considering use, even in remission.
- Known hypersensitivity: Allergy to BPC-157, TB-500, thymosin peptides, or copper.
- Wilson’s disease: A genetic disorder causing copper accumulation. The GHK-Cu
component delivers bioavailable copper and could worsen this condition. Use with Caution:
- Pregnancy or breastfeeding: No safety data exists for any of these peptides during
pregnancy or lactation.
- Severe cardiovascular conditions: Angiogenic effects may be a concern in certain
cardiac conditions.
- Autoimmune conditions: Immune-modulating effects of TB-500 and BPC-157 warrant
caution.
- Immunosuppressant medications: Potential interactions with immune-modulating
drugs.
- Liver or kidney impairment: Limited data on peptide metabolism and clearance in
compromised organ function. Drug Interactions: Limited data are available regarding drug interactions with the GLOW Blend components. Consult a qualified healthcare provider if taking any medications, particularly immunosuppressants, anticoagulants, or copper-altering medications.
GLOW Blend vs. Other Peptide Options
When to Choose GLOW Blend vs. Wolverine Stack
Choose GLOW Blend If: Choose Wolverine Stack If: You want injury recovery plus anti-aging and Your main goal is pure injury recovery skin benefits
You want stronger doses of BPC-157 and You want a simpler, more affordable protocol TB-500 (10 mg each vs. 5 mg each) Collagen support and skin quality are Anti-aging and skin appearance are not priorities priorities You prefer a comprehensive single-vial You need only BPC-157 and TB-500 solution
When to Choose GLOW Blend vs. KLOW Blend
Choose GLOW If: Choose KLOW If: You want healing plus anti-aging without gut- You have significant gut inflammation or specific peptides IBD concerns You do not need KPV for gut inflammation You want maximum comprehensive support including targeted gut healing Skin rejuvenation and collagen support are Gastrointestinal health is a primary concern primary goals
Success Tips
Expect Gradual Results
The GLOW Blend works through multiple mechanisms with different timelines. Injury healing improvements typically become noticeable within 1 to 4 weeks. Skin texture and hydration improvements may appear within 2 to 4 weeks. Significant collagen density and firmness improvements generally require 8 to 12 weeks of consistent use. Setting realistic expectations and committing to a full protocol cycle will yield the best results.
The Blue Color Is Normal
Reconstituted GLOW Blend will have a distinctive blue tint from the GHK-Cu component. This is completely normal and indicates that the copper is properly bound to the GHK peptide. If your solution is not blue, the product may be compromised and should not be used.
Reduced Site Reactions vs. Standalone GHK-Cu
One notable benefit of the GLOW Blend compared to standalone GHK-Cu is that BPC-157 appears to moderate injection site reactions. If you have previously experienced irritation with GHK-Cu alone, you may find the blend significantly more tolerable.
Strategic Injection Site Selection
Because TB-500 works systemically, you can inject the GLOW Blend at any convenient subcutaneous site. However, if you have a specific injury, injecting near that area may maximize BPC-157’s localized effects while still receiving systemic benefits from TB-500 and GHK-Cu.
Combine with Good Fundamentals
Peptides enhance your body’s healing capacity, but they work best alongside supportive lifestyle factors:
- Adequate protein intake: Provides amino acid building blocks for collagen and tissue
synthesis.
- Vitamin C: An essential cofactor for collagen production; consider supplementing 500–
1,000 mg daily during your cycle.
- Quality sleep: Tissue repair is most active during deep sleep stages.
- Appropriate rehabilitation: For injuries, follow a structured rehabilitation protocol
alongside peptide use for optimal recovery.
Storage and Handling
Before Reconstitution:
- Store lyophilized (powder) vials in the refrigerator at 36°F to 46°F (2°C to 8°C).
- Can be stored in a freezer for longer-term storage.
- Protect from light.
After Reconstitution:
- Refrigerate at 36°F to 46°F (2°C to 8°C).
- Use within 4 weeks when reconstituted with bacteriostatic water.
- Do not freeze after reconstitution.
- Keep the vial stopper clean; wipe with an alcohol swab before each draw.
- The blue color should remain stable throughout use. If the color changes or particles
appear, discard the vial.
Legal Status
United States: BPC-157 and TB-500 are not FDA-approved for human use and were classified as Category 2 bulk drug substances in 2023. GHK-Cu is widely used in cosmetic products (marketed as Copper Tripeptide-1) but injectable forms face similar regulatory restrictions. The GLOW Blend is available as a research chemical. WADA Status: BPC-157 and TB-500 are prohibited by the World Anti-Doping Agency under the S0 Unapproved Substances category. Athletes subject to drug testing should not use this combination.
Product Source
When sourcing research-grade peptide blends, ensure the supplier provides third-party testing, certificates of analysis (COA), and proper documentation of purity (typically ≥99%). Always verify the legitimacy and quality standards of any peptide supplier.
Frequently Asked Questions
Why choose the GLOW Blend over the Wolverine Stack? The GLOW Blend adds GHK-Cu (50 mg) to the Wolverine Stack formula and doubles the BPC- 157 and TB-500 doses (10 mg each versus 5 mg each). Choose GLOW if you want injury healing plus anti-aging, skin improvement, and collagen support. Choose the Wolverine Stack if your primary goal is injury recovery without anti-aging benefits. What is the blue color in the solution? The blue color comes from the GHK-Cu (copper peptide) component and is completely normal. It indicates that the copper is properly bound to the peptide. If your reconstituted solution is not blue, the product may be compromised and should not be used. Will the GLOW Blend help with skin appearance? Yes. The GHK-Cu component supports collagen synthesis, skin thickness, firmness, and elasticity. Multiple clinical studies have demonstrated that GHK-Cu improves these parameters over 8 to 12 weeks of consistent use. The BPC-157 and TB-500 components also support wound healing and overall tissue quality, contributing to improved skin appearance. Can I use the GLOW Blend for gut issues? While the BPC-157 component provides some gut support when injected subcutaneously, standalone oral BPC-157 is more targeted for gut-specific issues. If gut inflammation is your primary concern, consider the KLOW Blend (which adds KPV for targeted gut inflammation support) or oral BPC-157. How long should I run the GLOW Blend? For injury healing, 4 to 8 weeks is the standard protocol. For anti-aging and collagen support, 8 to 16 weeks is recommended. Take 4 to 6 weeks off between cycles to allow receptor sensitivity to reset. Can I inject the GLOW Blend anywhere? Yes. Because TB-500 works systemically, you can inject the blend at any convenient subcutaneous site. However, if you have a specific injury, injecting near that area may maximize BPC-157’s localized effects while still receiving the systemic benefits of all three peptides. Is the GLOW Blend safe for long-term use?
No long-term safety data exists for this specific combination. Most practitioners recommend cycling (4–16 weeks on, 4–6 weeks off) rather than continuous indefinite use. Consult a qualified healthcare provider to determine the appropriate protocol for your individual circumstances.
References
1. Gwyer D, Wragg NM, Wilson SL. Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healing. Cell Tissue Res. 2019;377(2):153–159. https://pubmed.ncbi.nlm.nih.gov/30915550/ 2. Chang CH, Tsai WC, Lin MS, Hsu YH, Pang JH. The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration. J Appl Physiol. 2011;110(3):774–780. https://pubmed.ncbi.nlm.nih.gov/21030672/ 3. Malinda KM, Sidhu GS, Mani H, et al. Thymosin beta4 accelerates wound healing. J Invest Dermatol. 1999;113(3):364–368. https://pubmed.ncbi.nlm.nih.gov/10469335/ 4. Bock-Marquette I, Saxena A, White MD, et al. Thymosin beta-4 activates integrin-linked kinase and promotes cardiac cell migration, survival, and cardiac repair. Nature. 2004;432(7016):466–472. https://pubmed.ncbi.nlm.nih.gov/15565145/ 5. Pickart L, Margolina A. Regenerative and protective actions of the GHK-Cu peptide in the light of the new gene data. Int J Mol Sci. 2018;19(7):1987. 6. Maquart FX, Pickart L, Laurent M, et al. In vivo stimulation of connective tissue accumulation by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+ in rat experimental wounds. J Clin Invest. 1993;92(5):2368–2376. https://pubmed.ncbi.nlm.nih.gov/8227361/