Ranked 17 of 20 peptide vendors. Reviewed Oct 27, 2026.
Core Peptides review
Is Core Peptides legit, safe, and worth ordering from?
The record is mixed. Core Peptides scores 61.7 out of 100 and ranks 17 of 20 on our board. 4 of 6 independent samples met the standard.
Overall score
61.7
Mixed. Board median 81.7.
Is Core Peptides legit?
What the vendor says about itself, what we could verify on its site, and what the independent results show.
One of the longer running US storefronts. Certificates are public and lot-matched, but the lab is not named and identity testing is HPLC only.
Core Peptides scores 61.7 out of 100 on our board, which puts it in position 17 of 20 vendors. 4 of 6 independent samples met the standard of 99.5% purity, confirmed identity, and accurate fill, and every result is listed in the test history below. It earns 4 of 7 transparency checks in full.
Where it falls short: testing lab is not named on the certificate; no mass spectrometry identity confirmation; slower dispatch than the top of the board.
Score breakdown
-
Purity
40% weight71.5
4 of 6 samples passed
-
Trust
25% weight65
4 of 7 checks earned in full
-
Delivery
20% weight73
4 business day median
-
Value
15% weight15
1.62x the market median per mg
Transparency checks
Each check is worth a fixed number of points. Together they make up the trust score of 65.
- Certificates readable before checkout 20 / 20
- Lot on certificate matches the vial 20 / 20
- Testing lab named 0 / 12
- Certificate verifies at the lab 0 / 13
- Mass spec identity confirmation 0 / 10
- Trading history (6 years) 10 / 10
- No public enforcement actions 15 / 15
Facts
- Headquarters
- Orlando, FL
- Ships from
- United States
- Trading since
- 2020
- Payments
- Cards, Crypto
- Delivery
- 4 business day median
- Carriers
- USPS, UPS. Free over $200
- Testing labs
- Not named on certificates
What stands out
- Six years of continuous operation
- Certificates readable before checkout
- Free shipping over 200 dollars
Where it falls short
- Testing lab is not named on the certificate
- No mass spectrometry identity confirmation
- Slower dispatch than the top of the board
Product by product
Rank is this vendor’s position, by overall score, among the vendors with independent results for that compound. Purity and pass counts are for the compound alone. Price is the listed vial normalised to dollars per milligram.
| Product | Avg purity | Passed | Price | Rank |
|---|---|---|---|---|
| PT-141 Latest Feb 12, 2026 | 99.70% | 1 / 1 | $4.30/mg $43 / 10 mg Buy | 6 of 8 |
| Ipamorelin Latest Apr 3, 2026 | 99.58% | 0 / 1 | $8.60/mg $43 / 5 mg Buy | 9 of 11 |
| TB-500 Latest Jul 22, 2026 | 99.48% | 0 / 1 | $15.6/mg $78 / 5 mg Buy | 10 of 13 |
| GHK-Cu Latest Dec 4, 2025 | 99.60% | 1 / 1 | $1.16/mg $58 / 50 mg Buy | 12 of 15 |
| Semaglutide Latest Jun 1, 2026 | 99.63% | 1 / 1 | n/a | 15 of 18 |
| BPC-157 Latest Oct 11, 2026 | 99.55% | 1 / 1 | $10.4/mg $52 / 5 mg Buy | 17 of 20 |
| CJC-1295 (no DAC) Listed, not yet tested | n/a | 0 | $8.20/mg $41 / 5 mg Buy | unranked |
| NAD+ Listed, not yet tested | n/a | 0 | $0.39/mg $292 / 750 mg Buy | unranked |
| Tesamorelin Listed, not yet tested | n/a | 0 | $7.90/mg $79 / 10 mg Buy | unranked |
- PT-141 6 of 8
1 of 1 passed, $4.30/mg
Buy PT-141 - Ipamorelin 9 of 11
0 of 1 passed, $8.60/mg
Buy Ipamorelin - TB-500 10 of 13
0 of 1 passed, $15.6/mg
Buy TB-500 - GHK-Cu 12 of 15
1 of 1 passed, $1.16/mg
Buy GHK-Cu - Semaglutide 15 of 18
1 of 1 passed, n/a
- BPC-157 17 of 20
1 of 1 passed, $10.4/mg
Buy BPC-157 - CJC-1295 (no DAC) unranked
0 of 0 passed, $8.20/mg
Buy CJC-1295 (no DAC) - NAD+ unranked
0 of 0 passed, $0.39/mg
Buy NAD+ - Tesamorelin unranked
0 of 0 passed, $7.90/mg
Buy Tesamorelin
Test history
Every independent result we hold for Core Peptides, newest first. Fill is the measured quantity as a share of the label claim.
- BPC-157 Janoshik Analytical Pass
- TB-500 Janoshik Analytical Purity below 99.5%
- Semaglutide Janoshik Analytical Pass
- Ipamorelin Janoshik Analytical Underfilled vial
- PT-141 Janoshik Analytical Pass
- GHK-Cu Janoshik Analytical Pass
Questions about Core Peptides
Short answers built from the data on this page. Scores are recomputed whenever new results are published.
Is Core Peptides legit?
The record is mixed. Core Peptides scores 61.7 out of 100 and ranks 17 of 20 on our board. 4 of 6 independent samples met the standard. The overall score of 61.7 combines purity results (71.5), transparency (65 of 100), delivery (73 of 100), and price (15), and every input is shown on this page.
Is Core Peptides trustworthy?
Core Peptides earns 4 of 7 transparency checks in full: certificates readable before checkout, lot on certificate matches the vial, trading history (6 years), and no public enforcement actions. It falls short on testing lab named, certificate verifies at the lab, and mass spec identity confirmation. We found no public enforcement actions against it.
Is Core Peptides safe? Are the peptides clean?
A sample passes our standard only when purity is at least 99.5% by HPLC, identity is confirmed by mass spectrometry, and the measured fill is within 25% of the label. 4 of 6 independent Core Peptides samples met it, with a weighted average purity of 99.58% and the latest result dated Oct 11, 2026. Every result is listed in the test history on this page.
How fast does Core Peptides ship?
Dispatch timing is not advertised, by USPS, and UPS, with tracking. Our delivery figure is 4 business days from order to doorstep for US addresses. Free shipping starts at 200 dollars.
Does Core Peptides publish certificates of analysis?
Yes. Certificates can be read before you buy. The lot number on the certificate matches the vial. The testing lab is not named. Reports cannot be re-checked at the lab. Testing is HPLC only, without mass spectrometry identity.
What does Core Peptides sell, and what does it cost?
Of the compounds we track, Core Peptides carries BPC-157, CJC-1295 (no DAC), GHK-Cu, Ipamorelin, NAD+, PT-141, TB-500, and Tesamorelin. Current single-vial prices and direct links are in the product table on this page.
What payment methods does Core Peptides accept?
Cards, and Crypto.
Where is Core Peptides located?
Its published location is Orlando, FL. Orders ship from United States, and the storefront has been trading since 2020.