What is DSIP peptide?

01

What is DSIP made of?

The sequence of DSIP is WAGGDASGE. The reference record lists the formula C35H48N10O15 and a molecular weight of 848.8 g/mol (PubChem CID 68816).

The name comes from delta waves, the slow brain waves of deep sleep, which the original experiments recorded.

Sources: [3] PubChem · reference structure · [1] PNAS · 1977

02

Where to buy DSIP

DSIP is sold direct by Prism Labs at prismlabs.store, in 10mg vials at $39.99 per vial. The latest published lab report, tested October 26, 2026, measured 99.73% purity. Every lot’s certificate of analysis is on the product page, with a link to verify it with the testing lab.

Orders placed before 4:30 PM CT ship the same day, seven days a week, when the size is in stock. Standard shipping is free over $125. Packs of 2 or more vials are discounted, up to 18% off.

See DSIP sizes, prices and lab reports · How to vet any peptide supplier

03

Where did DSIP come from?

In 1977, a Basel group including Guido Schoenenberger and Marcel Monnier reported a peptide from the blood of rabbits in which sleep had been induced, and linked it to delta-wave activity in recipient animals.

The next year they published its amino-acid sequence and a synthetic version. Reviews followed in 1984 and 1986 as interest grew.

Sources: [1] PNAS · 1977 · [2] Experientia · 1977 · [4] Pflügers Archiv · 1978 · [5] Neuroscience & Biobehavioral Reviews · 1984 · [6] Peptides · 1986

04

What is and isn’t known

DSIP has an unusual status: studied for decades, yet still unsettled.

• No gene encoding it and no specific receptor had been identified, according to a 2006 review.
• Studies have examined it in sleep, stress-hormone and circadian research, mostly in animals.
• Findings have varied between laboratories, which is part of why reviews describe it as unresolved.

These are observations in laboratory models. They are not evidence about any use in people.

Sources: [7] Journal of Neurochemistry · 2006 · [5] Neuroscience & Biobehavioral Reviews · 1984

05

How is DSIP supplied and stored?

DSIP ships as a lyophilized (freeze-dried) powder in 10 mg vials. The powder is stable at room temperature in transit. For lab use it is reconstituted with bacteriostatic water such as Prism H2O.

For a vial, concentration is content divided by volume: 10 mg in 2 mL gives 5 mg per mL. The reconstitution calculator handles other combinations.

For storage before and after reconstitution, see how to store lyophilized peptides.

06

How do I verify DSIP batches?

Every lot has its own certificate of analysis from an independent lab. Read three results separately:

• Identity: confirms the expected compound was detected.
• Purity: the share of the measured material that is the intended compound.
• Content: the amount measured, compared with the label.

Then match the lot number on your vial or bottle to the report, and use the report’s verification link to confirm it with the testing lab. Step by step: how to read a peptide COA.