DSIP

Delta sleep-inducing peptide, a sleep-architecture classic.

Delta sleep-inducing peptide, a sleep-architecture classic
Purity ≥ 98.0% (HPLC)
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The why

DSIP is a nine-amino-acid peptide first characterized in the 1970s. It remains a reference compound in slow-wave sleep, stress-response and neuroendocrine research.

Key ingredients

DSIP 5 mg
Sterile lyophilized powder

Certificate of Analysis

Every lot, tested and documented.

Independent third-party analysis on every DSIP lot by Vanguard Laboratory (A2LA accredited). Purity, quantity, identity, heavy metals, endotoxins and bioburden. The results below are pulled straight from the signed report.

Verified by Vanguard HPLC-UV/VIS ICP-MS USA-shipped

Vanguard Laboratory · Level 3 verified

DSIP

Open signed COA

Lot number

DSP.5.A

Laboratory ID

V260617-22002

Date reported

6/25/2026

Report number

V260617-22 002

Chromatographic purity

98.00%

Quantity per vial

4.57 mg

Endotoxins (LAL)

Pass - <5.00 EU/mg

Bioburden (USP 61)

Pass - No Growth Detected

Heavy metals (ICP-MS)

Not detected

Signed by

Dustin Newman, Laboratory Director

Values above are transcribed from the Vanguard Laboratory report for lot DSP.5.A. Heavy metals reported as ND (not detected) for arsenic, cadmium, lead and mercury. Open the signed PDF for chromatograms and the full analyte table.

What we test

Purity + identity
98.00%
HPLC-UV/VIS chromatographic purity against a reference standard.
Quantity
4.57 mg
Confirms the vial holds at least what the label says.
Heavy metals
Not detected
ICP-MS screen for arsenic, cadmium, lead and mercury.
Endotoxins + bioburden
Pass - <5.00 EU/mg
LAL endotoxin assay and USP 61 microbial count screening.