pepkits is a US research-peptide vendor that lists 26 products. pepkits states its products are made in the USA ("Made in the USA"). Shipping is free; it accepts card. It does not accept returns.
Facts extracted from the vendor’s site and not yet reviewed by us.
COA coverage: Not assessed
We have not assessed certificate coverage yet. Based on the certificates our crawler found; vendors may publish more than we index.
from 3 indexed documents
current certificates, by the date printed on them
TIDEWATER ANALYTICAL signs the most of them
oldest Apr 7, 2026
Every batch is tested by an independent third-party laboratory before it ships, with certificates of analysis for purity, identity, and concentration published on each product page.
$3.20/mg median
▼ 3%
Median price per mg across pepkits’s 26-35 priced listings, from Jul 17 ($3.30/mg) to Sep 17 ($3.20/mg) over 58 observed days. The mix of products behind the median changes as listings come and go, so this tracks the catalog as well as the prices.
International
—
vs market median
26
peptides
Not assessed
in-stock products
Oct 14
International
45% below
vs market median
53
peptides
Partial
in-stock products
Oct 14
International
20% above
vs market median
71
peptides
Broad
in-stock products
Oct 14
International
—
vs market median
66
peptides
Not assessed
in-stock products
Oct 14
Not enough matched products to compute a price position for pepkits. The catalog in this index is smaller than Fusion Peptide's. On COA coverage, pepkits rates not assessed and Fusion Peptide rates partial. 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.
Pricing data cannot settle that question, and we do not test products or verify fulfillment. Here is the evidence we do hold for pepkits. We track 41 listings from this vendor and have not assessed certificate coverage for them yet. pepkits states its products are made in the USA; we have not verified that. We have been recording their prices since July 3, 2026. 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.
pepkits states that orders ship from US. They state that they do not ship internationally. This is what the vendor says about itself, not something we have verified.
pepkits lists shipping at $0. Orders over $250 are listed as shipping free. Their shipping page is at https://pepkits.is/shipping-policy/. Checkout is the only place these figures are binding.
At the time we recorded it, pepkits listed credit or debit card. Peptide storefronts change processors often, so the options at checkout may differ from what we hold.
We have none on record for pepkits. When a code we can verify appears, it shows on this page and the prices here are adjusted for it; until then, every figure on this page is the list price.
Product documentation
Across the tracked peptide products we hold for pepkits, COA coverage rates limited. The public index contains 3 documents. Reported test dates in this set run from Apr 7, 2026 through May 1, 2026. That rating covers the full tracked catalogue for pepkits, 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.
across the full tracked catalogue
current certificates, by the printed test date.
Printed date is over 18 months old.
Named on more current records than any other lab.
Certificate assessment
3 evaluated certificates
3 graded · 0 not graded · 1 in the A range.
The sample prioritizes up to ten popular peptides from this vendor. Grades assess the document and its reported tests, not the vendor’s whole catalog or the safety of a product.
Automated checks can make mistakes. Open “Why this result?” for the reason and any review notice, and check the linked COA’s lot against your product. How grading works
3 evaluated records
Document grade
B5: An impurity total is printed, but none of the impurities are named.
Document check: flag.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
TWA-26-PKITS17
Document grade
Review required
B3: Most of the evidence is there, but printed identity identifiers need review, so the grade stops at A-.
Document check: flag.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
TWA-26-PKITS03
Document grade
B6: An assay percentage is reported, but its basis does not establish a peptide mass fraction or an amount per vial.
Document check: flag.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
TWA-26-PKITS48
| COA grade | Printed lab | Certificate | |||
|---|---|---|---|---|---|
| BPC-157 Lot: TWA-26-PKITS17 | Document grade Why this result?B5: An impurity total is printed, but none of the impurities are named. Document check: flag. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | TIDEWATER ANALYTICAL | May 1, 2026 | 98.92%Under 99% | View COA |
| AOD-9604 Lot: TWA-26-PKITS03 | Document grade Review required Why this result?B3: Most of the evidence is there, but printed identity identifiers need review, so the grade stops at A-. Document check: flag. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Tidewater Analytical | Apr 16, 2026 | 98.63%Under 99% | View COA |
| CJC-1295 (with DAC) Lot: TWA-26-PKITS48 | Document grade Why this result?B6: An assay percentage is reported, but its basis does not establish a peptide mass fraction or an amount per vial. Document check: flag. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | TIDEWATER ANALYTICAL | Apr 7, 2026 | 99.12%99.0–99.49% | View COA |
3 current records
TWA-26-PKITS17
TWA-26-PKITS03
TWA-26-PKITS48
| Printed lab | Certificate | |||
|---|---|---|---|---|
| BPC-157 | TIDEWATER ANALYTICAL | May 1, 2026 | 98.92%Under 99% | View COA |
| AOD-9604 | Tidewater Analytical | Apr 16, 2026 | 98.63%Under 99% | View COA |
| CJC-1295 (with DAC) | TIDEWATER ANALYTICAL | Apr 7, 2026 | 99.12%99.0–99.49% | View COA |
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.
The Peptide App. pepkits peptide prices, COA coverage and vendor facts. Updated October 14, 2026. https://www.thepeptide.app/pricing/vendor/pepkits
The Peptide App. (2026). pepkits peptide prices, COA coverage and vendor facts. Retrieved from https://www.thepeptide.app/pricing/vendor/pepkits
Prices and certificate counts on this page were last refreshed October 14, 2026.
