Compare lab measurements, vendor test histories and original reports for DSIP.
What the DSIP record shows
Evidence through 2026-09-23
TitrateLab tracks 877 published DSIP certificate-of-analysis source records through 2026-09-23, each with a recorded purity or measured-versus-label amount result. Across 877 records with a numeric peptide-purity result, including zero, the median reported purity is 99.3%. Across 752 records with measured-versus-label dose data, 42% are within 10% of the labeled quantity. This is a public convenience sample, not a randomized market survey; one result describes one submitted sample and does not verify other batches.
Published records with a non-null purity or measured-versus-label amount result. Matching uses a normalized compound slug. No deduplication in this archive summary; relays and corrected records can remain separate. Records with neither measurement are excluded here, but can appear in the research overview's exact-token raw-record total. These are not unique certificates or batches. TitrateLab indexes reports from third-party laboratories.
Aggregate calculated: 2026-09-24T23:21:15.817040+00:00. Calculation time is not a test date.
Published records877
Reported purity99.3% median · 877 results
Dose accuracy42% within ±10% · 752 results
Endotoxin100% pass · 25 determinate results
Evidence dates2023-11-03 to 2026-09-23
Limits and missing evidence
The testing laboratory is unattributed on 7 records.
Coverage depends on reports that were published and available to ingest.
Assay metrics
DSIP lab-testing metrics
877
Certificates
99.3%
Median reported purity (zero included)
92%
Purity records ≥ 99%
0
Source records reporting zero purity
7
Testing labs
450
Vendors
Mean purity99.2%Below 90% purity0%Mean dose vs label+9.8%Underfilled10%Endotoxin pass100%Within 10% of label dose42%Overdosed ≥ +7%55%Underdosed ≤ −7%14%
COAs per testing lab
Every lab testing DSIP in the corpus.
Freedom Diagnostics71799.3% med
Janoshik11799.6% med
Chromate2298.9% med
Unattributed / lab unknown799.8% med
ILS Laboratories599.1% med
Vanguard Laboratory599.1% med
Testides298.6% med
SR BIO LABS199.1% med
Tested-purity distribution
Bins below 90% tested purity (0% of numeric purity records).
DSIP tested-purity distribution
Purity range
Certificates
0–50%
0
50–70%
0
70–80%
0
80–85%
0
85–90%
2
90–91%
1
91–92%
0
92–93%
1
93–94%
0
94–95%
2
95–96%
2
96–97%
2
97–98%
8
98–99%
56
99–100%
803
COAs over time
DSIP source records by test month (discovery month when test date is absent).
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
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Lab evidence
Free preview
6 lab reports from this vendor
This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.
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