Ranked 20 of 20
Penguin Peptides
Budget vendor with public certificates that are not tied to specific lots. Independent results have been inconsistent.
Overall score
50.3
Weak. Board median 81.7.
Score breakdown
-
Purity
40% weight53.7
3 of 7 samples passed
-
Trust
25% weight43
2 of 7 checks earned in full
-
Delivery
20% weight64
5 business day median
-
Value
15% weight35
1.35x the market median per mg
Transparency checks
Each check is worth a fixed number of points. Together they make up the trust score of 43.
- Certificates readable before checkout 20 / 20
- Lot on certificate matches the vial 0 / 20
- Testing lab named 0 / 12
- Certificate verifies at the lab 0 / 13
- Mass spec identity confirmation 0 / 10
- Trading history (4 years) 8 / 10
- No public enforcement actions 15 / 15
Facts
- Headquarters
- Not disclosed
- Ships from
- United States
- Trading since
- 2022
- Payments
- Cards, Crypto
- Delivery
- 5 business day median
- Carriers
- USPS
- Testing labs
- Not named on certificates
What stands out
- Lowest prices on several recovery peptides
- Card payments accepted
Where it falls short
- Certificates are not lot-matched
- Lab is not named
- Independent pass rate below the board average
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 |
|---|---|---|---|---|
| CJC-1295 (no DAC) Latest Jan 29, 2026 | 98.20% | 0 / 1 | $11.0/mg $55 / 5 mg Buy | 6 of 6 |
| PT-141 Latest Dec 8, 2025 | 99.60% | 1 / 1 | $5.50/mg $55 / 10 mg Buy | 8 of 8 |
| Ipamorelin Latest Mar 10, 2026 | 99.10% | 0 / 1 | $7.80/mg $39 / 5 mg Buy | 11 of 11 |
| TB-500 Latest Aug 6, 2026 | 99.56% | 1 / 1 | $8.40/mg $42 / 5 mg Buy | 13 of 13 |
| GHK-Cu Latest May 1, 2026 | 99.62% | 1 / 1 | $1.08/mg $54 / 50 mg Buy | 15 of 15 |
| Semaglutide Latest Jun 17, 2026 | 98.60% | 0 / 1 | $11.8/mg $59 / 5 mg , as GLP-1 S Buy | 18 of 18 |
| BPC-157 Latest Oct 19, 2026 | 99.00% | 0 / 1 | $8.40/mg $42 / 5 mg Buy | 20 of 20 |
| Cagrilintide Listed, not yet tested | n/a | 0 | $14.4/mg $72 / 5 mg , as GLP-1 C Buy | unranked |
| NAD+ Listed, not yet tested | n/a | 0 | $0.13/mg $65 / 500 mg Buy | unranked |
| Retatrutide Listed, not yet tested | n/a | 0 | $11.8/mg $118 / 10 mg , as GLP-3 R Buy | unranked |
| Tesamorelin Listed, not yet tested | n/a | 0 | $7.50/mg $75 / 10 mg Buy | unranked |
| Tirzepatide Listed, not yet tested | n/a | 0 | $6.50/mg $65 / 10 mg , as GLP-1 T Buy | unranked |
- CJC-1295 (no DAC) 6 of 6
0 of 1 passed, $11.0/mg
Buy CJC-1295 (no DAC) - PT-141 8 of 8
1 of 1 passed, $5.50/mg
Buy PT-141 - Ipamorelin 11 of 11
0 of 1 passed, $7.80/mg
Buy Ipamorelin - TB-500 13 of 13
1 of 1 passed, $8.40/mg
Buy TB-500 - GHK-Cu 15 of 15
1 of 1 passed, $1.08/mg
Buy GHK-Cu - Semaglutide 18 of 18
0 of 1 passed, $11.8/mg , as GLP-1 S
Buy GLP-1 S - BPC-157 20 of 20
0 of 1 passed, $8.40/mg
Buy BPC-157 - Cagrilintide unranked
0 of 0 passed, $14.4/mg , as GLP-1 C
Buy GLP-1 C - NAD+ unranked
0 of 0 passed, $0.13/mg
Buy NAD+ - Retatrutide unranked
0 of 0 passed, $11.8/mg , as GLP-3 R
Buy GLP-3 R - Tesamorelin unranked
0 of 0 passed, $7.50/mg
Buy Tesamorelin - Tirzepatide unranked
0 of 0 passed, $6.50/mg , as GLP-1 T
Buy GLP-1 T
Test history
Every independent result we hold for Penguin Peptides, newest first. Fill is the measured quantity as a share of the label claim.
- BPC-157 Janoshik Analytical Purity below 99.5%
- TB-500 Janoshik Analytical Pass
- Semaglutide Janoshik Analytical Purity below 99.5%
- GHK-Cu Janoshik Analytical Pass
- Ipamorelin Janoshik Analytical Purity below 99.5%
- CJC-1295 (no DAC) Janoshik Analytical Identity not confirmed
- PT-141 Janoshik Analytical Pass