BioLongevity Labs vs Peptide Supply Co
Across the 23 products both vendors stock, BioLongevity Labs has the lower effective price per mg on 0 and Peptide Supply Co on 22, and 1 prices the same to the cent. BioLongevity Labs lists 62 tracked listings across 33 products; Peptide Supply Co lists 69 across 54. On certificates of analysis the in-stock products we track rate partial at BioLongevity Labs and broad at Peptide Supply Co. 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.
BioLongevity Labs is a US research-peptide vendor based in Akron, OH that lists 33 injectable peptides.
- Price vs market median
- 45% above market
- Tracked catalog
- 33 products · $$$
- Cheaper on
- 0 of 23 shared
- COA coverage
- Partial
Peptide Supply Co is a US research-peptide vendor that lists 67 injectable peptides, 11 blends and 1 capsule.
- Price vs market median
- 20% below market
- Tracked catalog
- 54 products · $
- Cheaper on
- 22 of 23 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 BioLongevity Labs and Peptide Supply Co 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 BioLongevity Labs
10 products the other vendor does not list
- FOXO4-DRI$27.50
- Bronchogen$3.50
- Chonluten$3.50
- Cortagen$3.50
- LL-37$18.99
- Ovagen$4
- Pancragen$4.75
- PEG-MGF$18.99
Only at Peptide Supply Co
31 products the other vendor does not list
- CJC-1295 (no DAC)$5.50
- DSIP$4
- Melanotan II$3.50
- PT-141$3.50
- Retatrutide$3.33
- Selank$3.80
- Semax$3.80
- SS-31$2.60
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is BioLongevity Labs cheaper than Peptide Supply Co?
- On the 23 products both vendors stock, BioLongevity Labs has the lower effective price per mg on 0 and Peptide Supply Co on 22, 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?
- BioLongevity Labs: partial, newest test dated 2025-10-20. Peptide Supply Co: broad, newest test dated 2026-09-11. 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 BioLongevity Labs and Peptide Supply Co?
- BioLongevity Labs: ships from USA (manufactured domestically), 3-5 days in transit. Peptide Supply Co: shipping free, 2-2 days in transit. Details come from each vendor's own site and can change without notice; check the storefront before ordering.