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:
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.