XTP Xi'an Taiye Chemical Co
also known as XTP Chemical Co, XTPep
Vials tend to hold more than the label (median +8.8%); 3 of 11 vials were more than 10% under.
For research use only. VendorVerify sells nothing and takes no money from vendors. No affiliate links, no coupon codes, no paid rankings. How scores work
Every vial we have on file
- Within ±5% / purity 99%+
- 5–20% under, overfilled / purity 95–99%
- Failed: over 20% under, over 50% over, empty or under 95% pure
Dose vs label
11 vials measured · 0 emptyPurity
11 vials measured- Median purity
- 99.85%
- across 11 vials
- Median dose vs label
- +8.8%
- across 11 vials; + means more than the label
- Failed vials
- 21.4%
- 3 of 11 vials; the rate weights each lab report equally and recent reports more, as the score does
- Lab reports
- 8
- Mar 27, 2026 to Jun 27, 2026
Labs: Freedom Diagnostics, Janoshik, Peptide Test, Vanguard Laboratory
Key facts
- VendorVerify holds third-party lab results for 11 XTP vials from 8 lab reports, dated Mar 2026 to Jun 2026.
- 3 of 11 XTP vials failed: empty, under 95% pure, more than 20% under the label or more than 50% over it.
- The median XTP vial tested at 99.85% purity across 11 vials with a purity result.
- The median XTP vial held +8.8% compared with its label across 11 vials where the lab measured the amount.
- Buyers have had 3 different compounds from XTP lab tested.
- XTP ranks #28 of 30 ranked vendors on the VendorVerify score.
- XTP vials on file were tested by Freedom Diagnostics, Janoshik, Peptide Test, Vanguard Laboratory.
By peptide
| Peptide | Vials | Failed | Median purity | Median dose vs label | Dose vs label, −20% to +20% |
|---|---|---|---|---|---|
| Retatrutide | 7 | 3 | 99.66% | +8.8% | |
| Tirzepatide | 3 | 0 | 99.86% | +18.0% | |
| GHK-Cu | 1 | 0 | 98.71% | −12.2% |
Lab reports
One row per tested vial, newest first.
| Date | Peptide | Lab | Label | Measured | Dose vs label | Purity |
|---|---|---|---|---|---|---|
| Jun 27, 2026 | RetatrutideBatch R30-003 | Vanguard Laboratory | 30 mg | 27.62 mg | −7.9% | 83.38% |
| Jun 16, 2026 | GHK-CuBatch GHK-Cu 100 2026302 | Janoshik | 100 mg | 87.81 mg | −12.2% | 98.71% |
| Jun 15, 2026 | RetatrutideBatch R30-003 | Janoshik | 30 mg | 34.47 mg | +14.9% | 99.90% |
| Jun 15, 2026 | RetatrutideBatch R30-003 | Janoshik | 30 mg | 4.29 mg | −85.7% | 99.49% |
| Jun 15, 2026 | RetatrutideBatch R30-003 | Janoshik | 30 mg | 4.48 mg | −85.1% | 99.25% |
| Apr 16, 2026 | TirzepatideBatch Tirze2026120 Orange Cap | Janoshik | 30 mg | 35.39 mg | +18.0% | 99.85% |
| Apr 16, 2026 | TirzepatideBatch Tirze2026120 Orange Cap | Janoshik | 30 mg | 35.98 mg | +19.9% | 99.89% |
| Apr 11, 2026 | RetatrutideBatch BXTP2026GTS119 | Freedom Diagnostics | 15 mg | 16.32 mg | +8.8% | 99.91% |
| Apr 9, 2026 | RetatrutideBatch BXTP2026GTS119 | Freedom Diagnostics | 15 mg | 16.32 mg | +8.8% | 99.91% |
| Apr 2, 2026 | RetatrutideBatch 2028-3 | Janoshik | 10 mg | 12.13 mg | +21.3% | 99.66% |
Other lab tests
Endotoxin, TFA, counterion and contaminant checks, as reported by the lab. They are shown for transparency and are not part of the score.
| Date | Peptide | Test | Result | Lab |
|---|---|---|---|---|
| Jun 18, 2026 | GHK-CuBatch GHK-Cu 100 2026302 | Endotoxin | <1 EU/Vial | Janoshik |
| Jun 18, 2026 | RetatrutideBatch R30-003 | Endotoxin | <10 EU/Vial (2.018 EU/Vial estimate) | Janoshik |
| Apr 20, 2026 | TirzepatideBatch Tirze2026120 Orange Cap | Endotoxin | >10 EU, 7.352 est. | Janoshik |
| Apr 11, 2026 | RetatrutideBatch BXTP2026GTS119 | Endotoxin | Pass | Freedom Diagnostics |
XTP: common questions
Is XTP legit?
We can't vouch for any vendor as a business, and we don't sell or recommend products. What we can show is what buyers' independent lab tests found: 3 of 11 XTP vials on file failed, meaning they were empty, under 95% pure, more than 20% under the label or more than 50% over it. That places XTP #28 of 30 ranked vendors, below market on our score. Results on file run from Mar 2026 to Jun 2026.
Has XTP been third-party tested?
Yes. We hold results for 11 XTP vials from 8 lab reports, tested by Freedom Diagnostics, Janoshik, Peptide Test, Vanguard Laboratory. Each result comes from a lab report a buyer paid for, not from a certificate the vendor supplied.
Are XTP vials dosed correctly?
Across 11 vials where the lab measured the amount, the median XTP vial held +8.8% compared with its label. 3 of 11 held more than 10% less than the label said.
How pure is XTP?
The median XTP vial tested at 99.85% purity across 11 vials with a purity result. We count anything under 95% as a failed vial, and a vial at 99.5% or higher gets full marks for purity.
Does XTP pay to be listed or ranked?
No. VendorVerify sells nothing and takes no money from vendors. No affiliate links, no coupon codes, no paid rankings. A vendor's place comes only from lab results.
Will my XTP vial match these results?
Not necessarily. A lab report describes the vials that were tested, and batches differ. A clean record lowers the odds of a bad vial but doesn't rule one out, which is why newer reports count for more in the score.
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