Crystagen lab test results by vendor
How each vendor's Crystagen held up in independent third-party lab tests: purity, dose against the label, and how often vials failed.
- vials tested
- 2
- lab reports
- 2
- vendors
- 1
- of vials failed
- 0.0%
- median purity
- 99.85%
- median dose vs label
- +3.3%
Specification: when a vial fails
A vial fails if it's empty, under 95% pure, more than 20% under its label, or more than 50% over.
- Contentsempty
- Purity< 95%
- Dose vs label< −20%
- Dose vs label> +50%
0 of 2 vials failed. Results from Jul 2025 to Sep 2025.
For research use only. Vendors can't pay to change their score, rank or warnings. No affiliate links, no coupon codes, no paid rankings. How scores work
Key facts
- VendorVerify holds lab results for 2 Crystagen vials from 1 vendor, from 2 independent lab reports dated Jul 2025 to Sep 2025.
- 0.0% of Crystagen vials on file failed (0 of 2), meaning empty, under 95% pure, more than 20% under label or more than 50% over.
- The median Crystagen vial on file tested at 99.85% purity.
- The median Crystagen vial on file held +3.3% compared with the amount on its label.
- No vendor yet has the 5 independent Crystagen lab reports needed to be ranked for Crystagen.
Crystagen vendors
| # | Vendor | Verdict | Score | Failed vials | Lab reports | Median dose vs label | Avg. purity | Vendor page |
|---|---|---|---|---|---|---|---|---|
| Not enough data to rank (fewer than 5 independent lab reports) | ||||||||
| Uther | Not ranked | 88.4 | 0.0% | 2 | +3.3% | 99.85% | View vendor Uther | |
Every Crystagen vial against its label
One dot per vial, placed by how much it held compared with the amount on the label. 50% held more than the label and 50% held less. The ones to worry about sit on the left.
Dot chart of 2 vials (every Crystagen vial on file), each placed by its measured amount compared with the label, from 50% under to 50% over. 1 are within 5% of the label, 1 are 5 to 20% under or more than 5% over, 0 are more than 20% under, 0 are more than 50% over, and 0 were empty.
What an honest Crystagen lab report should show
Use this list on the report a vendor sends you, before you trust the numbers on it. How to read a COA
- Lot match. The lot or batch number on the report matches the one printed on your vial.
- Named, independent lab. The report names a lab you can contact and check it with. A PDF with only the vendor's logo doesn't count.
- HPLC and mass spec. HPLC measures purity and mass spectrometry confirms identity. You need both.
- Recent, batch-dated test. The test is dated for this batch, not one report reused for years.
- Purity isn't identity. A high purity figure says nothing about what the compound is unless the mass spec result matches it.
- Contaminants. Endotoxin, heavy metals and sterility results, where the lab offers them. Most reports leave these out.
Crystagen-specific things to check
No Crystagen-specific notes yet.
Crystagen: common questions
Which Crystagen vendors pass lab testing?
No vendor has 5 or more independent lab reports for Crystagen yet, so none is ranked. The table on this page lists every vendor's results so far.
How often do Crystagen vials fail testing?
0 of 2 Crystagen vials on file failed (0.0%). A vial fails if it's empty, under 95% pure, more than 20% under its label, or more than 50% over it.
Are Crystagen vials underdosed?
Not by much on average. The typical Crystagen vial on file held +3.3% compared with the amount on its label. Individual vials vary much more than that, and the chart on this page shows every one.
What purity do Crystagen vials test at?
The median Crystagen vial tested at 99.85% purity. We count anything under 95% as a failed vial and give full marks for purity at 99.5% or higher, because small differences above that are within normal lab-to-lab variation.
Where do these Crystagen results come from?
From 2 independent lab reports, mostly commissioned by buyers, covering 2 vials from 1 vendors, dated Jul 2025 to Sep 2025. VendorVerify doesn't test anything itself. A report a vendor paid for is only used if the lab can verify it, and it is marked as vendor-commissioned and counts at half weight.
Does VendorVerify sell Crystagen?
No. VendorVerify doesn't sell peptides of any kind. Vendors can't pay to change their score, rank or warnings. No affiliate links, no coupon codes, no paid rankings.
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