Peptidology Reviews
Peptidology review: 20 independent lab tests across 6 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Peptidology legit? Lab record: Mixed
How we rate- 20 independent tests
- 16 of 20 lots filled to label
- Median purity 99.8%
- 2 of 5 products graded D or E
Some of Peptidology's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested CJC-IPA
Peptidology graded E. Crush Research's CJC-IPA graded A across 2 tests.
Buy from Crush ResearchAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Peptidology graded D or E, these shops' samples of the same peptide graded A or B. Ordered by grade, then price per mg. Partner status never changes the order.
CJC-IPA
Peptidology: grade E- Buy
2 tests
Ipamorelin
Peptidology: grade DPeptidology products we've tested
Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open Peptidology's site.
- GHK-CuAGREAT
- Tests
- 6
- Passed
- 100.0%
- PT-141AGREAT
- Tests
- 4
- Passed
- 100.0%
- RetatrutideAGREAT
- Tests
- 2
- Passed
- 100.0%
- IpamorelinDPOOR
- Tests
- 3
- Passed
- 66.7%
- CJC-IPAEBAD
- Tests
- 2
- Passed
- 50.0%
- Tests
- 3
- Passed
- —
What the testing shows
Across 20 measured samples from Peptidology, 4 came in more than 5% under the quantity on the label (20%). Another 4 measured more than 5% over. Purity across 20 readings ran from 98.14% to 99.95%, median 99.8%. Samples span May 2025 to Aug 2026.
- Under label
- 4/20
- Median purity
- 99.8%
- Latest sample
- Aug 2026
more than 5% short
98.14%–99.95% range
first tested May 2025
Our read on Peptidology
15 of Peptidology's 20 graded samples passed (75%), and 20% of all samples were sent in by buyers rather than by the shop.
The pass rate has held steady: 75% over the latest six months against 75% before.
When a sample failed, the most common reason was purity under 99.5% (4 times).
Against the 302 shops with at least five graded tests, Peptidology's pass rate is at or above 60% of them, and it has more tests on record than 51% of them.
When and how Peptidology was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (10), Freedom Diagnostics (5), BTLabs (4), Chromate (1)
- Who sent the samples
- buyers 20%, testing programme 80%
- Batches covered
- 6 distinct batch numbers
Why Peptidology's failed samples failed
The 5 most recent failed tests, with the lab's reason.
CJC-IPA · May 25, 2026
amount in the vial more than 35% off the label
BPC-157 · Aug 6, 2025
purity under 99.5%
Ipamorelin · Aug 6, 2025
purity under 99.5%
BPC-157 · May 16, 2025
purity under 99.5%
BPC-157 · May 16, 2025
purity under 99.5%
Lab testing results
Independent results across 6 products.
Individual lab tests
Date
8/28/2026
Purity
99.8%
Quantity
10 mg → 10.3 mg
Lab
BTLabs
Vial
White label / Silver crimp / Green cap
Date
6/26/2026
Purity
99.8%
Quantity
20 mg → 26.8 mg
Lab
BTLabs
Vial
White label / Silver crimp / White cap
Date
6/1/2026
Purity
99.7%
Quantity
10 mg → 9.6 mg
Lab
BTLabs
Vial
White Label / Silver Crimp / Red Cap
Date
8/11/2025
Purity
99.93%
Quantity
10 mg → 10.3 mg
Lab
Krause Analytical
Vial
White, Blue Label / Silver Crimp / Dark Green Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideWhite label / Silver crimp / Green cap | 8/28/2026 | 10.0 | 99.8% | 10 mg → 10.3 mg | BTLabs | View |
| CJC-IPAWhite label / Silver crimp / White cap | 6/26/2026 | 10.0 | 99.8% | 20 mg → 26.8 mg | BTLabs | View |
| RetatrutideWhite Label / Silver Crimp / Red Cap | 6/1/2026 | 10.0 | 99.7% | 10 mg → 9.6 mg | BTLabs | View |
| CJC-IPA | 5/25/2026 | 10.0 | 99.8% | 20 mg → 27.8 mg | BTLabs | View |
| PT-141White, Blue Label / Silver Crimp / Dark Green Cap | 8/11/2025 | 10.0 | 99.93% | 10 mg → 10.3 mg | Krause Analytical | View |
Which Peptidology products tested best
Retatrutide, GHK-Cu and PT-141 have the strongest record, graded A or B.
Ipamorelin and CJC-IPA graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Peptidology
If you order from Peptidology, the A- and B-graded products are the safer picks on this record. For the weaker ones, the better-tested options on this page come from other shops.
We don't track Peptidology's prices yet. Shipping, payment and refund terms are on their site.
The official store is peptidology.co. Check the address before you pay.
What to check before you pay
- The lot number on the vial matches the certificate
- The certificate names the lab and the test date
- Fill versus label, not purity alone
- A refund policy in writing
Track Peptidology
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Peptidology: common questions
Is Peptidology legit?
We rate lab records, not businesses. Mixed lab record: 20 independent tests, 16 of 20 lots filled to label, median purity 99.8%, 2 of 5 products graded D or E. Each result links to its original certificate in the table above.
What do Peptidology reviews say?
We don't hold scored customer reviews for Peptidology yet. The independent lab results on this page are the evidence we have.
Which Peptidology peptides tested best?
We have graded 5 Peptidology products. Retatrutide, GHK-Cu and PT-141 graded A or B. Ipamorelin and CJC-IPA graded D or E.
Is there a Peptidology coupon code?
We don't have a verified Peptidology coupon code. A discount changes the price, not what is in the vial.
Ordering from Peptidology?
Mixed lab record: 20 independent tests, 16 of 20 lots filled to label, median purity 99.8%, 2 of 5 products graded D or E.
Contact
- US, AZ 85254
- peptidology.co