Brand credibility report · PeptidesDirect
Every SKU in the PeptidesDirect catalogue is testable, in public.
A summary of the analytical methods CertikLabs runs on PeptidesDirect batches, the showcase metrics those methods produce, and a one-tap route to request the same on your own catalogue.
Showcase metrics
Independent third-party analytical results for the PeptidesDirect catalogue.
Values are computed directly from the public CertikLabs verification records for PeptidesDirect. Each metric resolves back to an individual, signed verification page on certiklabs.com.
Showcase SKUs verified
65
Each linked from the product page and packaging QR.
Average HPLC purity
99.20%
Range 98.07–99.95% across the catalogue.
Average concentration vs label
99.2%
Measured against certified reference standard.
Mean mass delta (LC-MS)
0.18 Da
Observed vs theoretical monoisotopic mass.
These figures are derived from 65 published verification records. They are showcase results from the PeptidesDirect integration — not a site-wide aggregate or marketing claim.
Methodology summary
How every PeptidesDirect batch is tested.
The same panel runs on every catalogue SKU. Full method parameters are available in the capabilities reference and reading a peptide COA.
Reversed-phase HPLC (purity)
C18 column, UV detection at 214 nm. Area-percent purity reported against the labelled compound; impurity peaks itemised individually above 0.1%.
LC-MS / ESI-TOF (identity)
Electrospray time-of-flight mass spectrometry confirms molecular ion against the theoretical monoisotopic mass. Mass delta reported in Da.
Quantitative NMR / UV (concentration)
Concentration is measured against a certified reference standard and reported as a percentage of the value printed on the vial.
Endotoxin & residual solvent screen
LAL endotoxin assay and GC headspace for residual TFA / acetonitrile from synthesis. Run on every lyophilised peptide batch.
Hash-anchored issuance
Every signed PDF report is SHA-256 hashed and the hash is anchored on a public blockchain at issuance. The verification URL outlives the brand.
Chain-of-custody capture
Sample receipt, condition, weight, and operator are logged at intake. Custody record is referenced from each verification page.
Highest-purity PeptidesDirect verified batches on record
Top 8 of 65 verified PeptidesDirect SKUs by reported HPLC purity.
| Product | Verification id | Purity | Conc. vs label | Open |
|---|---|---|---|---|
| Selank | CL-PD-SELANK | 99.95% | 98.7% | Verification → |
| AICAR | CL-PD-AICAR50 | 99.94% | 99.8% | Verification → |
| Thymosin Alpha-1 | CL-PD-TA1 | 99.89% | 99.4% | Verification → |
| Livagen | CL-PD-LIVAGEN | 99.87% | 99.9% | Verification → |
| MK-677 (Ibutamoren) | CL-PD-MK677 | 99.86% | 99.8% | Verification → |
| Ipamorelin | CL-PD-IPAM | 99.73% | 99.0% | Verification → |
| Pancragen | CL-PD-PANCRA | 99.73% | 99.4% | Verification → |
| GHRP-6 | CL-PD-GHRP6 | 99.72% | 98.7% | Verification → |
Frequently asked questions
PeptidesDirect credibility & verification
Common questions about how the PeptidesDirect credibility report works, how metrics are derived, and what the verification covers.
Get the same credibility layer on your catalogue.
The PeptidesDirect integration is a drop-in pattern: signed analytical reports, public verification pages, and QR codes that deep-link straight to certiklabs.com. Request testing and we'll quote your first batch within one business day.