Synapse Peptide Sciences sells direct to researchers. It lists 26 products, including Glutathione, DSIP, Melanotan II, FOXO4-DRI, PT-141, and SS-31, plus 13 other compounds.
In its own words: “Independent third-party HPLC, mass spec, and endotoxin verification on every lot.”
Of the 12 product pages we opened, every one links its own certificate.
Prices run from $5.00 to $139.00 across 26 listed products.
Site check: 26 products listed.
Synapse Peptide Sciences is listed as active. Added from editorial vendor review, 2026-08-10. Profile pending a read of the vendor's own site.
| Status | Active |
|---|---|
| Vendor type | Research-use supplier |
These details were read from Synapse Peptide Sciences's own website on 2026-08-10. Pages consulted:
26 of 26 listed products were in stock when we last read the catalogue.
We hold no independent testing, published certificates, or ratings for Synapse Peptide Sciences, so we cannot tell you whether it is legitimate. That is an absence of evidence, not evidence of a scam — it means nobody has tested it.
We hold no independent third-party assays for Synapse Peptide Sciences. Any purity figure it publishes is self-reported unless it names the lab that produced it.
Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.
Other reviewed vendors: Synergy Biopeps Review, Synergy Rx Peptides Review, SYS Pharma Corp Peptides Review.