PeptiAtlas reviews
PeptiAtlas reviews: 14 independent lab tests across 3 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is PeptiAtlas legit? Lab record: Mixed
How we rate- 14 independent tests
- 9 of 9 lots filled to label
- Median purity 99.88%
- 2 of 3 products graded D or E
Some of PeptiAtlas's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
PeptiAtlas graded E. Paradigm Peptide's Retatrutide graded A across 8 tests, $10.00 / mg.
Buy from Paradigm PeptideAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where PeptiAtlas 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.
Retatrutide
PeptiAtlas: grade EGHK-Cu
PeptiAtlas: grade EPeptiAtlas 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 PeptiAtlas' site.
- TirzepatideBGOOD
- Tests
- 8
- Passed
- 87.5%
- GHK-CuEBAD
- Tests
- 4
- Passed
- 25.0%
- RetatrutideEBAD
- Tests
- 2
- Passed
- 50.0%
What the testing shows
Across 9 measured samples from PeptiAtlas, 0 came in more than 5% under the quantity on the label (0%). Another 3 measured more than 5% over. Purity across 10 readings ran from 10% to 99.95%, median 99.88%. Samples span Sep 2025 to Oct 2026.
- Under label
- 0/9
- Median purity
- 99.88%
- Latest sample
- Oct 2026
- Ships from
- China
more than 5% short
10%–99.95% range
first tested Sep 2025
per vendor listing
Our read on PeptiAtlas
9 of PeptiAtlas' 14 graded samples passed (64%), and 100% of all samples were sent in by buyers rather than by the shop.
Results are slipping: 29% passed over the latest six months, down from 100% before.
When a sample failed, the most common reason was the lab could not confirm it was the labelled peptide (4 times).
Against the 302 shops with at least five graded tests, PeptiAtlas' pass rate is at or above 29% of them, and it has more tests on record than 41% of them.
When and how PeptiAtlas was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (9), BTLabs (3), Harrens Lab (2)
- Who sent the samples
- buyers 100%
- Batches covered
- 12 distinct batch numbers; 1 checked for endotoxins
Why PeptiAtlas' failed samples failed
The 5 most recent failed tests, with the lab's reason.
GHK-Cu · Oct 1, 2026
purity under 99.5%; amount in the vial more than 35% off the label
GHK-Cu · Sep 25, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · Aug 12, 2026
the lab could not confirm it was the labelled peptide
GHK-Cu · Aug 12, 2026
the lab could not confirm it was the labelled peptide
Tirzepatide · Aug 12, 2026
the lab could not confirm it was the labelled peptide
Lab testing results
Independent results across 3 products.
Individual lab tests
Date
10/1/2026
Purity
10%
Quantity
50 mg → 5 mg
Lab
Harrens Lab
Vial
No label / Silver crimp / Blue cap
Date
10/1/2026
Purity
99.9%
Quantity
30 mg → 29.99 mg
Lab
Harrens Lab
Vial
No label / Silver crimp / Clear Teal cap
Date
9/25/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
White label / Silver crimp / Blue cap
Date
8/12/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
White label, Copper crimp, White cap
Date
8/12/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
White label, Silver crimp, Blue cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| GHK-CuNo label / Silver crimp / Blue cap | 10/1/2026 | 1.0 | 10% | 50 mg → 5 mg | Harrens Lab | View |
| TirzepatideNo label / Silver crimp / Clear Teal cap | 10/1/2026 | 10.0 | 99.9% | 30 mg → 29.99 mg | Harrens Lab | View |
| GHK-CuWhite label / Silver crimp / Blue cap | 9/25/2026 | — | — | Krause Analytical | View | |
| TirzepatideWhite label, Copper crimp, White cap | 8/12/2026 | — | — | Krause Analytical | View | |
| GHK-CuWhite label, Silver crimp, Blue cap | 8/12/2026 | — | — | Krause Analytical | View |
Which PeptiAtlas products tested best
Tirzepatide has the strongest record, graded A or B.
Retatrutide and GHK-Cu graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from PeptiAtlas
If you order from PeptiAtlas, 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 PeptiAtlas' prices yet. Shipping, payment and refund terms are on their site.
The official store is peptiatlas.com. 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 PeptiAtlas
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
PeptiAtlas: common questions
Is PeptiAtlas legit?
We rate lab records, not businesses. Mixed lab record: 14 independent tests, 9 of 9 lots filled to label, median purity 99.88%, 2 of 3 products graded D or E. Each result links to its original certificate in the table above.
What do PeptiAtlas reviews say?
We don't hold scored customer reviews for PeptiAtlas yet. The independent lab results on this page are the evidence we have.
Which PeptiAtlas peptides tested best?
We have graded 3 PeptiAtlas products. Tirzepatide graded A or B. Retatrutide and GHK-Cu graded D or E.
Is there a PeptiAtlas coupon code?
We don't have a verified PeptiAtlas coupon code. A discount changes the price, not what is in the vial.
Where does PeptiAtlas ship from?
Public listings place PeptiAtlas's shipping origin in China. Check the shop's own shipping page before ordering, as origin can change.
Ordering from PeptiAtlas?
Mixed lab record: 14 independent tests, 9 of 9 lots filled to label, median purity 99.88%, 2 of 3 products graded D or E.
Contact
- china
- peptiatlas.com