Certificate terms
What is a “Curve Assay” on a peptide spray COA?
Short answer
It is the quantity test HYTE Research Division runs on Clean Peptide's spray certificates. In analytical chemistry a curve assay measures how much of a compound is present by comparing the sample's response with a calibration curve made from known amounts of a reference standard. The certificates name the method but do not describe it further.
Quantity results by curve assay
| Product | Size | Measured | Specification |
|---|---|---|---|
| Adamax Spray | 20 mL | 0.98mg/mL | NLT 90% of label claim |
| DSIP Spray | 20 mL | 1.18mg/mL | NLT 90% of label claim |
| PT-141 Spray | 20 mL | 1.31mg/mL | NLT 90% of label claim |
| Semax Spray | 20 mL | 1.15mg/mL | NLT 90% of label claim |
| KPV | 10 mg | 12.94mg | 10mg (NLT 90% of label claim) (certificate) |
Read from the live lot pages on 30 October 2026. KPV is read from the certificate image.
For the four sprays the result is a concentration in mg/mL, read against a label of 20 mg in 20 mL. The Selank Spray certificate measures quantity by HPLC-DAD instead and reports 19.69 mg for the bottle.
A curve assay gives the amount; it does not by itself give purity. Of the HYTE spray certificates, only Selank Spray reports an HPLC purity figure.
Where to verify
All answersSold for laboratory research use only. Not for human or veterinary use.
