Purity
99.78%median across published certificates
How much of the sample is the target compound?
ReportsA percentage, e.g. 99.76%
209 of 209
Lab testing
Read the lab results yourself.
Independent labs test Aspect's lots, and every certificate we hold is public, with its lot number, lab and date. You never have to take purity on trust.
Each dot is one certificate. Select a dot to open it.
- Certificates published
- 209
- Compounds covered
- 38
- Independent labs
- 4
- Median HPLC purity
- 99.78%
The full panel
Seven tests, one vial.
Purity alone cannot tell you what is in a vial. Our full panel also checks the molecule, the amount, and what should not be there. The bar on each test shows how many published certificates report it.
Identity
192certificates confirmed by LC-MS/MS
Is the molecule in the vial the one on the label?
ReportsConfirmed, with the method named
209 of 209
Net content
107.23 mgmeasured in a 100 mg GHK-Cu vial, lot GHKCu-101926-100
How much peptide is actually in the vial?
ReportsMeasured mg per vial
188 of 209
Full panel
7x
18 lots tested
on the seven-test panel
Endotoxin
Is bacterial endotoxin present above the limit?
ReportsPass against a stated limit
39 of 209
Heavy metals
Did metals carry over from reagents or equipment?
ReportsAs, Cd, Pb, Hg and Cr in ppm
21 of 209
Sterility
Is there any sign of microbial growth?
ReportsNo growth
18 of 209
Fentanyl screen
Is the sample free of fentanyl contamination?
ReportsNot detected
18 of 209
The full panel runs on our newest ILS Laboratories lots. Earlier certificates report the tests printed on them, and every certificate shows exactly what was run. Counts were read from the certificates and are minimums, because some older scans cannot be machine-read.
How to read one
A real certificate, line by line.
Pick a compound. This is page one of the actual certificate from the lab, unedited. Select it to open the full PDF.
- 1
Lot number
The batch this result belongs to. It should match your vial, not just the compound name.
- 2
Lab and accession
Who ran the test and their record number. This is what lets a certificate be traced back to the lab.
- 3
Purity
The target compound as a share of what the instrument detected. It is not the same thing as how much is in the vial.
- 4
Identity
Confirms the molecule. A high purity figure means little if the molecule is the wrong one.
- 5
Net content
The measured amount in the vial, compared with the amount on the label.
Who runs the tests
Four labs, none of them ours.
Each result comes from a third-party lab named on the certificate, so you can see who produced it.
171certificates
Freedom Diagnostics
United States
Purity, identity by LC-MS/MS and net peptide content. Some certificates add endotoxin.
FreedomDiagnosticsTesting.com (opens in a new tab)18certificates
ILS Laboratories
San Diego, CA
The full seven-test panel, with a chromatogram and an access code to check the certificate.
Certificates state an ISO/IEC 17025 quality system
ils-lab.com (opens in a new tab)18certificates
Accurate Test Labs
Fort Lauderdale, FL
Purity, identity and mg per unit, with the chromatogram on the certificate.
Most certificates state ISO/IEC 17025:2017 accreditation
accuratetestlab.com (opens in a new tab)2certificates
pH Solutions
Monrovia, CA
Lot release certificates with fill weight conformance and analytical results.
Certificates state ISO/IEC 17025:2017 accreditation
Check your vial
Three steps, about a minute.
- 1Find the lot number on your vial label.
- 2Enter it here to pull that exact certificate.
- 3Compare the lot, compound and size with your vial.
Newest certificates
For laboratory research use only. Not for human or veterinary use. Results relate only to the samples tested.