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Skin and Tanning Peptides
Our tanning peptides and skin research compounds cover pigment work and copper peptide remodeling: Melanotan 2 in 10mg vials, a 10mg trio or a nasal spray, GHK-Cu in 50mg and 100mg vials, and the GLOW and KLOW blends.
Looking for something else? Try our healing peptides and anti-aging peptides, or go back to the Onyx Research home page to see every category.
What are tanning peptides?
Melanotan 2 is a cyclic analog of alpha-MSH, the hormone that tells skin cells to make melanin. It acts on several melanocortin receptors, which is why it also turns up in appetite and libido research.
GHK-Cu is a three-amino-acid peptide that holds a copper ion. Loren Pickart first described it in human plasma in 1973, and it’s studied for collagen production and wound remodeling.
The research behind this range is indexed on PubMed, the free database of the U.S. National Library of Medicine. Start with this PubMed search.
Skin and Tanning Peptides in stock
- GHK-Cu Copper Peptide: from $42.50
- GLOW Blend 70mg (GHK-Cu, BPC-157, TB-500): $125.00
- KLOW Blend 80mg (GHK-Cu, KPV, BPC-157, TB-500): $120.00
- Melanotan 2 (MT-2): from $99.00
How to choose tanning peptides
For pigment research, Melanotan 2 is the compound to start with. The trio is three 10mg vials for longer projects.
For collagen and remodeling models, start with GHK-Cu. GLOW adds BPC-157 and TB-500 to it, and KLOW adds KPV on top.
Tanning peptides prices
This range has 4 products, with prices from $42.50 to $125.00. 2 of them come in more than one size or version, chosen from the menu on the product page. Shipping is free on every order, to any country we ship to.
Tanning peptides lab testing
4 of the 4 products here have a certificate of analysis in their product photos. Most come from Freedom Diagnostics, a US lab that measures purity by HPLC and confirms identity by mass spectrometry. Each product page lists the purity results and the search code you can use to look the report up yourself.
Storage and handling
Keep sealed freeze-dried vials in the freezer at -20°C, or in the fridge if they’ll be used within a few weeks. Once a vial is mixed, it stays at 2 to 8°C and is best used within about four weeks.
Write the arrival date and, later, the mixing date on every vial or bottle. Those two dates answer most questions later.
Frequently asked questions
Are these tanning peptides in stock?
Yes. Everything listed on this page is in stock.
Are tanning peptides for human use?
No. Onyx Research sells research compounds for laboratory use only. None are approved for use in people or animals.
Where can I see the lab results?
In the product photos and in the purity list on each product page.
How much is shipping?
Nothing. Shipping is free on every order, worldwide.
Buy tanning peptides at Onyx Research
Choose a product from the list, pick a size where there’s a choice and add it to your cart. Everything here is in stock and ships free, wherever you are. You can always go back to the Onyx Research home page to browse the full store.
For laboratory research use only. Not for human or veterinary use.

GHK-Cu Copper Peptide
Price range: $42.50 through $57.50Select options This product has multiple variants. The options may be chosen on the product page
GLOW Blend 70mg (GHK-Cu, BPC-157, TB-500)
$125.00
KLOW Blend 80mg (GHK-Cu, KPV, BPC-157, TB-500)
$120.00
Melanotan 2 (MT-2)
Price range: $99.00 through $210.00Select options This product has multiple variants. The options may be chosen on the product page

