Cognition

DSIP

Nootropic · 98.7% · HPLC · Batch G260806

Tracked EU shipping €9.95 — free on net goods ≥ €150. Ships after batch confirmation; verify the ID on the label when it arrives.

Delta-sleep-inducing peptide, studied for deeper sleep and stress-hormone balance.

Stacks: Researched on its own for sleep quality.

PROVENANCE · SUPPLIER → BENCH

German supplier

Lot received · Frankfurt

2026-03-17

Batch intake

Logged & quarantined

2026-03-20

HPLC test

Purity confirmed

2026-04-17

Serialised

Unique QR per vial

2026-04-19

Released

QA sign-off complete

2026-04-22

Dispatch ready

Cold-chain where required

2026-04-23

Variant

€23.99

Formatlyophilised vial
Verify IDTV-2608-06K26-08V06

HPLC purity read-out

Hover or focus a peak to see what it is. Impurity peaks are enlarged for clarity.

036912retention time (min)signal (mAU)
98.7% purity (HPLC)largest single impurity 0.75% · spec ≤ 1.0%total impurities 1.3%

Storage & handling

  • Store lyophilised vials refrigerated at 2–8 °C, protected from light and moisture.
  • Do not freeze lyophilised material unless the batch record states otherwise.
  • Keep vials upright in the original carton until reconstitution.
Reconstituted
  • After reconstitution with bacteriostatic water, refrigerate at 2–8 °C.
  • Typical research use window: within 28 days when using BAC water (batch-dependent).
  • Discard if the solution becomes cloudy, discoloured, or particulate.
Handling
  • Use aseptic technique; wipe the stopper with an alcohol swab before each draw.
  • Do not shake vigorously — swirl gently to dissolve.
  • For laboratory research use only. Not for human or veterinary use.

Evidence dossier

DSIP — analytical notes

Cited literature and method notes for laboratory researchers. Not therapeutic claims — read the primary sources.

Analytical method

  • Identity confirmed by mass spectrometry against the target sequence.
  • Purity reported by HPLC with method retained in the batch record.
  • Endotoxin and water content disclosed on the Certificate of Analysis.

Storage & stability

  • Store lyophilised vials refrigerated at 2–8 °C, protected from light and moisture.
  • Do not freeze lyophilised material unless the batch record states otherwise.
  • Use aseptic technique; wipe the stopper with an alcohol swab before each draw.

Known impurities / release gates

Related-peptide and process impurities are screened on HPLC; out-of-spec batches are quarantined.

Reference literature

  • DSIP sleep and stress-axis exploratory researchSleep peptide reviews · 2005
  • DSIP historical sleep-peptide literatureSleep research archive · 2000

Related compounds · Nootropic

Frequently asked

Is DSIP available in Ireland and the EU?

Yes — DSIP ships tracked from EU-held stock to Ireland and across the EU, with no non-EU customs step. For laboratory research use only; not for human or veterinary use.

How do I verify a DSIP batch?

Every TARA vial carries a unique verification ID. Enter it at tararesearch.ie/verify to see the batch's Certificate of Analysis, HPLC purity result, and release status — no account needed. The current catalogue batch is G260806.

What purity is DSIP?

Batch G260806 tested at 98.7% by HPLC. The full report, including the chromatogram, is public in the batch's Certificate of Analysis.

How is DSIP supplied and stored?

Supplied as lyophilised vial. Store lyophilised material cool, dry, and away from light; see the storage and handling guidance on this page for details.