Ranked 10 of 20
Peptide Maxxing
Newer vendor with near complete certificate verification. Prices have been trending down this quarter.
Overall score
82.5
Solid. Board median 81.7.
Score breakdown
-
Purity
40% weight84.1
5 of 6 samples passed
-
Trust
25% weight94
6 of 7 checks earned in full
-
Delivery
20% weight82
3 business day median
-
Value
15% weightn/a
No listed prices
Transparency checks
Each check is worth a fixed number of points. Together they make up the trust score of 94.
- Certificates readable before checkout 20 / 20
- Lot on certificate matches the vial 20 / 20
- Testing lab named 12 / 12
- Certificate verifies at the lab 13 / 13
- Mass spec identity confirmation 10 / 10
- Trading history (2 years) 4 / 10
- No public enforcement actions 15 / 15
Facts
- Headquarters
- Not disclosed
- Ships from
- United States
- Trading since
- 2024
- Payments
- Cards, Crypto
- Delivery
- 3 business day median
- Carriers
- USPS, UPS. Free over $125
- Testing labs
- Janoshik Analytical, MZ Biolabs
What stands out
- Nearly every certificate re-checks at the lab
- Competitive pricing on metabolic peptides
Where it falls short
- Short trading history
- Small review base
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 |
|---|---|---|---|---|
| Cagrilintide Latest Jul 19, 2026 | 99.60% | 1 / 1 | n/a | 4 of 5 |
| Tesamorelin Latest Feb 10, 2026 | 99.55% | 1 / 1 | n/a | 4 of 7 |
| Tirzepatide Latest Sep 3, 2026 | 99.69% | 1 / 1 | n/a | 8 of 12 |
| Semaglutide Latest Apr 17, 2026 | 99.66% | 1 / 1 | n/a | 9 of 18 |
| BPC-157 Latest Jun 4, 2026 | 99.30% | 0 / 1 | n/a | 10 of 20 |
| Retatrutide Latest Oct 15, 2026 | 99.73% | 1 / 1 | n/a | 10 of 14 |
- Cagrilintide 4 of 5
1 of 1 passed, n/a
- Tesamorelin 4 of 7
1 of 1 passed, n/a
- Tirzepatide 8 of 12
1 of 1 passed, n/a
- Semaglutide 9 of 18
1 of 1 passed, n/a
- BPC-157 10 of 20
0 of 1 passed, n/a
- Retatrutide 10 of 14
1 of 1 passed, n/a
Test history
Every independent result we hold for Peptide Maxxing, newest first. Fill is the measured quantity as a share of the label claim.
- Retatrutide Janoshik Analytical Pass
- Tirzepatide MZ Biolabs Pass
- Cagrilintide Janoshik Analytical Pass
- BPC-157 MZ Biolabs Purity below 99.5%
- Semaglutide Janoshik Analytical Pass
- Tesamorelin Janoshik Analytical Pass