Catalogue details and research limits
Current GHK-Cu presentations: CU50 is labelled 50mg per vial and CU10 is labelled 100mg per vial. Both are supplied in boxes of 10 vials. Compare the current product specifications and published batch reports before ordering.
Collagen production in cultured cells, cosmetic skin outcomes and human lifespan are different endpoints. Earlier GHK-Cu fibroblast research and a newer ferment-extract/GHK-Cu combination study do not demonstrate that research vials reverse human ageing. The latter investigates a formulated combination, so its results cannot be assigned to GHK-Cu alone. [1][2]
Listing PT-141 and Melanotan II under an ageing heading does not establish an anti-ageing treatment benefit, prove that these are the most studied compounds, or demonstrate complementary clinical effects. Read each compound’s evidence in its actual setting: PT-141 research guide, Melanotan II research guide and GHK-Cu skin research. Research-use wording does not remove applicable Australian requirements. [3]
References and bibliography
- Maquart FX, Pickart L, Laurent M, Gillery P, Monboisse JC, Borel JP. 1988. Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+. FEBS letters. 238(2):343-346. doi:10.1016/0014-5793(88)80509-x.
- Wang J, Tao K, Huang H, Chang H. 2026. Augmented Skin Beneficial Effects of Thermus Thermophilus and Bacillus Subtilis Mixed-Culture Ferment Extract by Tripeptide GHK-Cu. Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI). 32(8):e70360. doi:10.1111/srt.70360.
- Therapeutic Goods Administration. 2026. How we regulate therapeutic peptide products. Accessed 27 September 2026.
Anti-Aging and Skin Biology Research Peptides
Research into peptide-mediated mechanisms of cellular aging, collagen remodelling, skin repair, and melanocortin signalling has produced a substantial and growing preclinical literature. GHK-Cu skin-biology studies and PT-141 or Melanotan II melanocortin studies address different research questions. Their inclusion on this page does not establish complementary clinical effects or anti-ageing treatment benefits.
GHK-Cu (glycine-histidine-lysine copper complex) is a naturally occurring tripeptide found in human plasma that binds copper(II) with high affinity. Research has documented its effects on fibroblast proliferation, collagen and elastin synthesis, matrix metalloproteinase regulation, wound healing, antioxidant gene expression (SOD1, CAT), and cellular senescence pathways. PT-141 (Bremelanotide) is a cyclic heptapeptide metabolite of Melanotan II with research focus on MC3R and MC4R receptor agonism. Melanotan II (MT-II) is a synthetic cyclic analogue of alpha-MSH with broad melanocortin receptor activity studied for skin pigmentation and photoprotection in melanocyte models.
All compounds are supplied for qualified laboratory research use only. For research use only.
Available Products & Pricing
Supplied as lyophilised powder in boxes of 10 research-grade vials. Free shipping on all orders.
Comparing the Three Research Compounds
| Compound | Origin | Primary Research Area | SKU / Price |
|---|---|---|---|
| GHK-Cu | Endogenous copper-binding tripeptide (Gly-His-Lys) | Collagen synthesis, wound healing, antioxidant gene expression | CU50 $445.50 / CU10 $693 |
| PT-141 | Cyclic heptapeptide, Melanotan II metabolite | MC3R/MC4R agonism, central melanocortin signalling | PT10 $544.50 |
| Melanotan II | Cyclic alpha-MSH analogue (MC1R–MC5R agonist) | Melanocyte pigmentation, skin photoprotection models | MT10 $396 |
Why Researchers Choose Eternal Peptides Wholesale
Published Batch Reports
Review the published reports for the selected product and batch. Only the tests and results shown on those reports apply; do not assume additional methods or testing were performed.
Online Research Supplier
online Australian business. Dispatch origin can vary, including offshore fulfilment. Contact us about supplier and invoicing documentation before ordering.
Wholesale Box Pricing
Supplied in boxes of 10 vials at wholesale pricing. Structured for research procurement budgets.
Free Shipping
Free shipping on all orders. see Shipping Policy for dispatch estimates. COA documentation included.
Frequently Asked Questions
What peptides are used in anti-aging research in Australia?
GHK-Cu has been investigated in skin-biology research, including collagen-related laboratory studies. PT-141 and Melanotan II are separate melanocortin research compounds; including them here does not establish anti-ageing treatment benefits. Review each compound’s evidence in its actual research setting. For laboratory research use only.
What is GHK-Cu used for in anti-aging research?
GHK-Cu (copper tripeptide-1) has been studied for its effects on fibroblast proliferation, collagen synthesis, elastin production, matrix metalloproteinase regulation, wound healing, and antioxidant gene expression. It has also been investigated in cellular senescence models. Supplied as CU50 (50mg) and CU10 (100mg) box of 10 vials. For research use only.
What is the difference between PT-141 and Melanotan II?
MT-II is a broad-spectrum MC1R-MC5R agonist studied primarily for melanocyte pigmentation. PT-141 is a metabolite of MT-II with more selective MC3R/MC4R activity, studied for central melanocortin signalling. They are structurally related but have different receptor selectivity profiles relevant to research model design. For research use only.
Where can I buy anti-aging research peptides wholesale in Australia?
Eternal Peptides Wholesale supplies GHK-Cu, PT-141, and Melanotan II to qualified Australian researchers. online Australian-based supplier, Janoshik COA-verified, free shipping, wholesale box pricing. For laboratory research use only.
Which GHK-Cu vial amounts are available in Australia?
Eternal Peptides Wholesale supplies GHK-Cu as CU50 (50mg per vial, box of 10, $445.50) and CU10 (100mg per vial, box of 10, $693.00). Both are Janoshik-verified. For qualified laboratory research use only.