Melanotan I
$1.76/mg
lowest tracked
Melanotan I (afamelanotide) is a synthetic analogue of alpha-melanocyte-stimulating hormone and a melanocortin-1 receptor agonist.
17 vendorscheapest vial $1762.50 · 100 × 10mg
Vendor
Variant
$/mg
Live · Hormonal & Reproductive Price Tracker · Research Use Only
Hormonal & Reproductive peptide price tracker
Melanocortin, GnRH and related hormonal research peptides — PT-141, Melanotan, Kisspeptin and Gonadorelin. Compare prices by $/mg. Prices normalized to dollars per milligram across 42 vendors.
Prices refreshed 2026-06-07
At a glance — lowest tracked $/mg
| Peptide | Vendors | Lowest $/mg |
|---|---|---|
| Melanotan I | 17 | $1.76/mg |
| Melanotan II | 32 | $1.85/mg |
| PT-141 | 31 | $1.88/mg |
| Kisspeptin-10 | 29 | $3.70/mg |
| TRH Thyrotropin | 1 | $3.72/mg |
| Oxytocin | 19 | $4.00/mg |
| Gonadorelin | 8 | $7.90/mg |
| Triptorelin | 2 | $18.0/mg |
Melanotan II
$1.85/mg
lowest tracked
Melanotan II is a synthetic analogue of the peptide hormone alpha-melanocyte-stimulating hormone (α-MSH).
32 vendorscheapest vial $1847.50 · 100 × 10mg
Vendor
Variant
$/mg
PT-141
$1.88/mg
lowest tracked
PT-141 (bremelanotide) is a synthetic melanocortin-receptor agonist peptide.
31 vendorscheapest vial $1875.00 · 100 × 10mg
Vendor
Variant
$/mg
Kisspeptin-10
$3.70/mg
lowest tracked
Kisspeptin-10 is a fragment of kisspeptin, a peptide encoded by the KISS1 gene that signals through the GPR54 receptor.
29 vendorscheapest vial $37.00 · 10mg
Vendor
Variant
$/mg
TRH Thyrotropin
$3.72/mg
lowest tracked
TRH (protirelin, thyrotropin-releasing hormone) is a naturally occurring tripeptide hormone produced in the hypothalamus.
1 vendorcheapest vial $93.00 · 25mg
Vendor
Variant
$/mg
Oxytocin
$4.00/mg
lowest tracked
Oxytocin is a naturally occurring peptide hormone and neuropeptide produced in the hypothalamus and released by the posterior pituitary.
19 vendorscheapest vial $39.99 · 10mg
Vendor
Variant
$/mg
Gonadorelin
$7.90/mg
lowest tracked
Gonadorelin is a synthetic form of gonadotropin-releasing hormone (GnRH), identical in structure to the endogenous hormone.
8 vendorscheapest vial $79.00 · 10mg
Vendor
Variant
$/mg
Triptorelin
$18.0/mg
lowest tracked
Triptorelin is a synthetic agonist analogue of gonadotropin-releasing hormone (GnRH).
2 vendorscheapest vial $36.00 · 2mg
Frequently asked
- What is the cheapest Hormonal & Reproductive peptide by price per mg?
- Melanotan I is the lowest-priced Hormonal & Reproductive peptide tracked, at $1.76/mg from Peptide Pros (as of 2026-06-07).
- How many vendors does Pep-Index track for Hormonal & Reproductive peptides?
- Pep-Index tracks 42 vendors across 8 Hormonal & Reproductive peptides, ranked by price per milligram. For research use only.
Other comparisons
For research use only. Pep-Index does not score or endorse vendors and makes no health, efficacy, dosing, or safety claims about any compound listed.