Peptides Source vs solyn
Across the 19 products both vendors stock, Peptides Source has the lower effective price per mg on 3 and solyn on 15, and 1 prices the same to the cent. Peptides Source lists 98 tracked listings across 45 products; solyn lists 27 across 20. On certificates of analysis the in-stock products we track rate none found at Peptides Source and broad at solyn. Based on the certificates our crawler found; vendors may publish more than we index. These are price and document observations, not quality ratings, and neither vendor is endorsed.
Peptides Source is a research-peptide vendor that lists 97 injectable peptides, including NAD+, Epitalon and CJC-1295 (no DAC).
- Price vs market median
- 4% below market
- Tracked catalog
- 45 products · $$
- Cheaper on
- 3 of 19 shared
- COA coverage
- None found
solyn is a US research-peptide vendor that lists 21 injectable peptides, including TB-500, Thymosin Alpha-1 and BPC-157.
- Price vs market median
- 13% below market
- Tracked catalog
- 20 products · $
- Cheaper on
- 15 of 19 shared
- COA coverage
- Broad
Vendor facts
Dashes mark facts we have not recorded yet. Vendor-stated details come from each storefront and can change without notice. Facts for solyn were extracted from the vendor's site and not yet reviewed by us.
Certificates on file
Coverage rates how many of the in-stock products we track have a certificate our pipeline read and matched to a catalog peptide. Based on the certificates our crawler found; vendors may publish more than we index. We do not test products, and a certificate cannot show authenticity, chain of custody or sterility.
Carried by one vendor only
Only at Peptides Source
26 products the other vendor does not list
- 5-Amino-1MQ$1.30
- CJC-1295 (no DAC)$6
- DSIP$7
- Melanotan II$4
- Pinealon$4.50
- Retatrutide$4
- SS-31$3
- Tirzepatide$3
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Peptides Source cheaper than solyn?
- On the 19 products both vendors stock, Peptides Source has the lower effective price per mg on 3 and solyn on 15, with 1 priced the same to the cent. Each side uses the cheapest in-stock listing we track for that product, after any public discount code, and prices change often.
- How much COA coverage does each vendor have?
- Peptides Source: none found. solyn: broad, newest test dated 2026-08-31. Based on the certificates our crawler found; vendors may publish more than we index. We do not test products ourselves, and a certificate cannot prove authenticity or sterility.
- How do shipping and payment differ between Peptides Source and solyn?
- Peptides Source: we have not recorded shipping or payment details yet. solyn: accepts card, zelle. Details come from each vendor's own site and can change without notice; check the storefront before ordering.