Risynth Bio reviews
Risynth Bio reviews: 18 independent lab tests across 5 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Risynth Bio legit? Lab record: Mixed
How we rate- 18 independent tests
- 17 of 18 lots filled to label
- Median purity 99.86%
- 2 of 5 products graded D or E
Some of Risynth Bio's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested BPC-157
Risynth Bio graded E. Zenith Jove Peptide ZJ's BPC-157 graded A across 10 tests.
Buy from Zenith Jove Peptide ZJAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Risynth Bio 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.
BPC-157
Risynth Bio: grade EIpamorelin
Risynth Bio: grade DRisynth Bio 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 Risynth Bio's site.
- TirzepatideAGREAT
- Tests
- 4
- Passed
- 100.0%
- SemaglutideCOKAY
- Tests
- 4
- Passed
- 75.0%
- RetatrutideCOKAY
- Tests
- 4
- Passed
- 75.0%
- IpamorelinDPOOR
- Tests
- 3
- Passed
- 66.7%
- BPC-157EBAD
- Tests
- 3
- Passed
- 33.3%
What the testing shows
Across 18 measured samples from Risynth Bio, 1 came in more than 5% under the quantity on the label (6%). Another 6 measured more than 5% over. Purity across 18 readings ran from 98.83% to 99.96%, median 99.86%. Samples span Sep 2025 to Mar 2026.
- Under label
- 1/18
- Median purity
- 99.86%
- Latest sample
- Mar 2026
- Ships from
- United States
more than 5% short
98.83%–99.96% range
first tested Sep 2025
per vendor listing
Our read on Risynth Bio
13 of Risynth Bio's 18 graded samples passed (72%), and 100% of all samples were sent in by buyers rather than by the shop.
Results are improving: 77% passed over the latest six months, up from 60% before.
When a sample failed, the most common reason was purity under 99.5% (5 times).
Against the 302 shops with at least five graded tests, Risynth Bio's pass rate is at or above 50% of them, and it has more tests on record than 45% of them.
When and how Risynth Bio was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (12), Chromate (6)
- Who sent the samples
- buyers 100%
- Batches covered
- 14 distinct batch numbers
Why Risynth Bio's failed samples failed
The 5 most recent failed tests, with the lab's reason.
BPC-157 · Mar 2, 2026
purity under 99.5%
Ipamorelin · Mar 2, 2026
purity under 99.5%
BPC-157 · Sep 9, 2025
purity under 99.5%
Retatrutide · Sep 1, 2025
purity under 99.5%
Semaglutide · Sep 1, 2025
purity under 99.5%
Lab testing results
Independent results across 5 products.
Individual lab tests
Date
3/2/2026
Purity
99.1%
Quantity
10 mg → 9.85 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Black Cap
Date
3/2/2026
Purity
98.9%
Quantity
10 mg → 11 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Green Cap
Date
3/2/2026
Purity
99.9%
Quantity
20 mg → 21.1 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Violet Cap
Date
9/9/2025
Purity
99.382%
Quantity
10 mg → 10.91 mg
Lab
Chromate
Vial
Gray Label / Silver Crimp / Blue Cap
Date
9/4/2025
Purity
99.95%
Quantity
30 mg → 28.3 mg
Lab
Krause Analytical
Vial
Gray Label / Copper Crimp / Clear Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| IpamorelinWhite Label / Silver Crimp / Black Cap | 3/2/2026 | 9.9 | 99.1% | 10 mg → 9.85 mg | Krause Analytical | View |
| BPC-157White Label / Silver Crimp / Green Cap | 3/2/2026 | 9.9 | 98.9% | 10 mg → 11 mg | Krause Analytical | View |
| SemaglutideWhite Label / Silver Crimp / Violet Cap | 3/2/2026 | 10.0 | 99.9% | 20 mg → 21.1 mg | Krause Analytical | View |
| BPC-157Gray Label / Silver Crimp / Blue Cap | 9/9/2025 | 9.9 | 99.382% | 10 mg → 10.91 mg | Chromate | View |
| TirzepatideGray Label / Copper Crimp / Clear Cap | 9/4/2025 | 10.0 | 99.95% | 30 mg → 28.3 mg | Krause Analytical | View |
Which Risynth Bio products tested best
Tirzepatide has the strongest record, graded A or B.
Semaglutide and Retatrutide graded C.
Ipamorelin and BPC-157 graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Risynth Bio
If you order from Risynth Bio, 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 Risynth Bio's prices yet. Shipping, payment and refund terms are on their site.
The official store is risynthbio.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 Risynth Bio
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Risynth Bio: common questions
Is Risynth Bio legit?
We rate lab records, not businesses. Mixed lab record: 18 independent tests, 17 of 18 lots filled to label, median purity 99.86%, 2 of 5 products graded D or E. Each result links to its original certificate in the table above.
What do Risynth Bio reviews say?
We don't hold scored customer reviews for Risynth Bio yet. The independent lab results on this page are the evidence we have.
Which Risynth Bio peptides tested best?
We have graded 5 Risynth Bio products. Tirzepatide graded A or B. Ipamorelin and BPC-157 graded D or E.
Is there a Risynth Bio coupon code?
We don't have a verified Risynth Bio coupon code. A discount changes the price, not what is in the vial.
Where does Risynth Bio ship from?
Public listings place Risynth Bio's shipping origin in United States. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Risynth Bio?
Mixed lab record: 18 independent tests, 17 of 18 lots filled to label, median purity 99.86%, 2 of 5 products graded D or E.