Is Planet Peptide Legit
Is Planet Peptide a legit peptide vendor? 63 independent lab tests across 10 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Lab record: Mixed
How we rate- 63 independent tests
- 53 of 62 lots filled to label
- Median purity 99.71%
- 4 of 8 products graded D or E
Some of Planet Peptide's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
Planet Peptide 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 Planet Peptide 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.
Planet Peptide 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 Planet Peptide's site.
- IpamorelinAGREAT
- Tests
- 4
- Passed
- 100.0%
- Melanotan IIAGREAT
- Tests
- 4
- Passed
- 100.0%
- MazdutideAGREAT
- Tests
- 3
- Passed
- 100.0%
- SemaglutideCOKAY
- Tests
- 8
- Passed
- 75.0%
- TirzepatideDPOOR
- Tests
- 19
- Passed
- 68.4%
- PT-141DPOOR
- Tests
- 3
- Passed
- 66.7%
- RetatrutideEBAD
- Tests
- 15
- Passed
- 53.3%
- GHK-CuEBAD
- Tests
- 2
- Passed
- 50.0%
- Tests
- 4
- Passed
- —
- Tests
- 1
- Passed
- —
What the testing shows
Across 62 measured samples from Planet Peptide, 9 came in more than 5% under the quantity on the label (15%). Another 42 measured more than 5% over. Purity across 63 readings ran from 76.15% to 100%, median 99.71%. Samples span Dec 2024 to Mar 2026.
- Under label
- 9/62
- Median purity
- 99.71%
- Latest sample
- Mar 2026
- Ships from
- US: FL
more than 5% short
76.15%–100% range
first tested Dec 2024
per vendor listing
Our read on Planet Peptide
41 of Planet Peptide's 63 graded samples passed (65%), and 21% of all samples were sent in by buyers rather than by the shop.
Results are improving: 90% passed over the latest six months, up from 60% before.
When a sample failed, the most common reason was purity under 99.5% (18 times).
Against the 302 shops with at least five graded tests, Planet Peptide's pass rate is at or above 31% of them, and it has more tests on record than 83% of them.
When and how Planet Peptide was tested
Samples per month. The darker part of each bar failed.
- Labs used
- TrustPointe (18), Chromate (14), Krause Analytical (12), BTLabs (5)
- Who sent the samples
- buyers 21%, testing programme 79%
- Batches covered
- 21 distinct batch numbers; 1 checked for endotoxins
Why Planet Peptide's failed samples failed
The 6 most recent failed tests, with the lab's reason.
BPC-157 · Feb 18, 2026
purity under 99.5%
Tirzepatide · Jun 27, 2025
purity under 99.5%
Tirzepatide · May 21, 2025
purity under 99.5%
Tirzepatide · May 21, 2025
purity under 99.5%
Retatrutide · May 21, 2025
purity under 99.5%
Retatrutide · May 21, 2025
purity under 99.5%
Lab testing results
Independent results across 10 products.
Individual lab tests
Date
3/20/2026
Purity
99.7%
Quantity
20 mg → 17.9 mg
Lab
BTLabs
Vial
White Label / Silver Crimp / Violet Cap
Date
3/6/2026
Purity
99.9%
Quantity
30 mg → 24 mg
Lab
Krause Analytical
Vial
White Label / Red Crimp / Clear Cap
Date
3/6/2026
Purity
99.7%
Quantity
100 mg → 113 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
Date
2/18/2026
Purity
98.78%
Quantity
10 mg → 10.2 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Clear Yellow Cap
Date
2/15/2026
Purity
99.7%
Quantity
20 mg → 24.1 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Violet Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideWhite Label / Silver Crimp / Violet Cap | 3/20/2026 | 10.0 | 99.7% | 20 mg → 17.9 mg | BTLabs | View |
| TirzepatideWhite Label / Red Crimp / Clear Cap | 3/6/2026 | 10.0 | 99.9% | 30 mg → 24 mg | Krause Analytical | View |
| GHK-CuNo Label / Silver Crimp / Blue Cap | 3/6/2026 | 10.0 | 99.7% | 100 mg → 113 mg | Krause Analytical | View |
| BPC-157No Label / Silver Crimp / Clear Yellow Cap | 2/18/2026 | 9.9 | 98.78% | 10 mg → 10.2 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Violet Cap | 2/15/2026 | 10.0 | 99.7% | 20 mg → 24.1 mg | BTLabs | View |
Which Planet Peptide products tested best
Ipamorelin, Mazdutide and Melanotan II have the strongest record, graded A or B.
Semaglutide graded C.
Tirzepatide, PT-141, Retatrutide and GHK-Cu graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Planet Peptide
If you order from Planet Peptide, 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 Planet Peptide's prices yet. Shipping, payment and refund terms are on their site.
The official store is planetpeptide.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 Planet Peptide
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Planet Peptide: common questions
Is Planet Peptide legit?
We rate lab records, not businesses. Mixed lab record: 63 independent tests, 53 of 62 lots filled to label, median purity 99.71%, 4 of 8 products graded D or E. Each result links to its original certificate in the table above.
What do Planet Peptide reviews say?
We don't hold scored customer reviews for Planet Peptide yet. The independent lab results on this page are the evidence we have.
Which Planet Peptide peptides tested best?
We have graded 8 Planet Peptide products. Ipamorelin, Mazdutide and Melanotan II graded A or B. Tirzepatide, PT-141, Retatrutide and GHK-Cu graded D or E.
Is there a Planet Peptide coupon code?
We don't have a verified Planet Peptide coupon code. A discount changes the price, not what is in the vial.
Where does Planet Peptide ship from?
Public listings place Planet Peptide's shipping origin in US: FL. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Planet Peptide?
Mixed lab record: 63 independent tests, 53 of 62 lots filled to label, median purity 99.71%, 4 of 8 products graded D or E.
Contact
- US: FL
- planetpeptide.com