Peptides Optimized peptides: prices, COAs and vendor facts
Peptides Optimized is a research-peptide vendor that lists 70 injectable peptides, including SS-31, TB-500 and Pinealon. Across 70 products with a market median, its prices sit 14% below the median for the same peptide and vial size; it is the cheapest vendor we track on Tirzepatide, and pricier on KPV and Melanotan II. We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index.
What the record shows
COA coverage: None found
We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index.
- Current certificates
- 0
- Tested within a year
- 0
- Labs named
- 0
- Freshest test date
- None printed
from 0 indexed documents
current certificates, by the date printed on them
named on 0 certificates
across current certificates
Price position
- Tirzepatide▼ 38%
- Tirzepatide▼ 38%
- Tirzepatide▼ 35%
- KPV▲ 50%
- Melanotan II▲ 48%
- Selank▲ 44%
Price check
Listed prices at Peptides Optimized against the median price per mg for the same peptide at the same vial size, across every vendor we track. Vendors change prices without notice, so check the current listing before you order.
Below the market median on 22 of 34 comparable listings, above it on 8. Typical listing: 4% below market. Showing the 6 largest differences.
How does Peptides Optimized compare to other peptide vendors?
Peptides Optimized
International
14% below
vs market median
35
peptides
None found
in-stock products
Sep 29
Atomik Labs
International
At median
vs market median
55
peptides
Limited
in-stock products
Sep 29
Tetrava Labs
International
13% above
vs market median
51
peptides
None found
in-stock products
Sep 29
Peptides Greyhouse
International
7% above
vs market median
63
peptides
None found
in-stock products
Sep 29
Peptides Optimized sits 14% below market the tracked market median on matched peptide/size rows. The catalog in this index is smaller than Atomik Labs's. On COA coverage, Peptides Optimized rates none found and Atomik Labs rates limited. Based on the certificates our crawler found; vendors may publish more than we index.
The honest comparison unit is price per mg on matched peptide/size rows. COA coverage is presence of a current indexed document, not purity-as-quality. See the Evidence Atlas and how to read a COA.
Evidence boundary: Listed prices, stock signals, and indexed COA documents are observations. They do not establish legitimacy, authenticity, safety, sterility, chain of custody, product quality, fulfillment, or suitability. No vendor is endorsed.
Popular peptides
19 of 22 carriedFull catalog (35)
Questions about Peptides Optimized
Is Peptides Optimized legit?
Pricing data cannot settle that question, and we do not test products or verify fulfillment. Here is the evidence we do hold for Peptides Optimized. We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index. Read each certificate yourself, check that its lot and compound match what you are buying, and treat anything we have not recorded as unknown rather than as an answer.
Does Peptides Optimized publish COAs?
We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index. We have not recorded a testing or COA page on their site. A certificate on file records what a document says; it cannot prove chain of custody or what is in the vial you receive.
How do Peptides Optimized prices compare to other vendors?
Across 70 graded products, Peptides Optimized's median price per mg sits 14.0% below the median for the same peptide at the same vial size. We track 35 products from them in total. Price per mg is the comparison unit: a cheaper vial holding less is not a cheaper product.
Product documentation
Peptides Optimized COA coverage
Across the tracked peptide products we hold for Peptides Optimized, COA coverage rates none found. The public index contains 0 documents. That rating covers the full tracked catalogue for Peptides Optimized, including products that are currently out of stock, so it can differ from the in-stock rating above. Based on the certificates our crawler found; vendors may publish more than we index.
- Product coverage
- None found
- Tested in past year
- 0
- Older records
- 0
- Most named lab
- Not reported
across the full tracked catalogue
current certificates, by the printed test date.
Printed date is over 18 months old.
No current record names a lab.
No current certificates are on file for the tracked market listings on this page.
A record appears on file after our pipeline identifies the document as a certificate of analysis and matches its printed compound to a catalog peptide. The record cannot prove authenticity, chain of custody, sterility, product safety, or suitability for use.
These are counts of documents in our index, and a coverage rating of what our crawler found. They do not grade vendor quality, legitimacy, or safety. Printed fields can contain transcription errors. “Older record” means the reported test date is more than 18 months old.
See the testing methodology and dataset, or compare this coverage against another vendor in the vendor comparison tool.
Cite this profile
The Peptide App. Peptides Optimized peptide prices, COA coverage and vendor facts. Updated September 29, 2026. https://www.thepeptide.app/pricing/vendor/peptides-optimized
The Peptide App. (2026). Peptides Optimized peptide prices, COA coverage and vendor facts. Retrieved from https://www.thepeptide.app/pricing/vendor/peptides-optimized
Prices and certificate counts on this page were last refreshed September 29, 2026.