Skip to content

Free shipping over €150  |  Certificate of Analysis included  |  📞 +40 750 437 038  |  💬 Live Chat

CertaPeptides
dsip - CertaPeptides
BATCH #CP-2025-0810
≥98% Purity
Nootropic Peptides

DSIP

5.0(Based on lab testing)
From €10.99Out of Stock

Research-grade DSIP. ≥98% purity, HPLC & MS verified. Lyophilized powder in sealed glass vial.

Size

Please select a size to continue

Earn 10 loyalty points with this purchase
1
Total: €10.99

Free shipping on orders over €150

📦
Buy More, Save More

Get the 15mg size and save 58% per unit vs the smallest option

Best value
€2.33/unit
2mg
€5.50/u
5mg
€3.80/u
-31%
10mg
€2.80/u
-49%
15mg
€2.33/u
-58%
Currently Unavailable38 researchers waiting

This product is being restocked

We're working with our supplier to restock this item. Sign up below to be the first to know, or save it to your wishlist.

One email when restocked. No spam, no marketing.

Important Notice

This product is intended for laboratory and research use only. Not for human or veterinary use. By purchasing, you confirm this product will be used exclusively for in-vitro research purposes.

Purity HPLC

≥98% verified by independent HPLC analysis

COA Verified

Certificate of Analysis included with every order

Fast Shipping

24h dispatch, free EU shipping over €150

Third-Party Tested

Independent lab verification for every batch

About DSIP

What Is DSIP?

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit brain tissue in 1977. It crosses the blood-brain barrier and is involved in regulating sleep architecture, stress responses, and neuroendocrine function. DSIP is one of the most studied peptides in sleep and circadian rhythm research.

Why Researchers Choose DSIP

  • Endogenous peptide — Naturally present in the brain, providing physiological relevance
  • Delta wave enhancement — Research shows promotion of slow-wave (deep) sleep stages
  • Stress modulation — Influences cortisol and ACTH levels in stress models
  • BBB permeable — Crosses the blood-brain barrier for CNS research applications

Key Research Areas

  • Sleep architecture and delta wave regulation
  • Circadian rhythm and neuroendocrine cycling
  • Stress response and HPA axis modulation
  • Pain perception and analgesic pathways
  • Free radical scavenging and oxidative stress

Specifications

Sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
CAS Number 62568-57-4
Purity ≥98% (HPLC verified)
Form Lyophilized powder
Available Sizes 2mg, 5mg, 10mg, 15mg

For research purposes only. Not for human consumption.

Specification Summary

Purity≥ 98%
FormLyophilized Powder
Storage-20\u00B0C

Customer Reviews

4.8
5 reviews
5
4
4
1
3
0
2
0
1
0
All reviews are from verified purchases
C
Clara V. VERIFIED

Barcelona, ES

Third time ordering from CertaPeptides. Always reliable, always on time. The quality documentation is a huge plus.

A
Ana P. VERIFIED

Lisbon, PT

Second order and just as impressed. Product quality is excellent and the price is really fair for EU shipping.

M
Marcus T. VERIFIED

Berlin, DE

Third time ordering from CertaPeptides. Always reliable, always on time. The quality documentation is a huge plus.

Based on category & popularity

Researchers Also Studied

View all

Frequently Bought Together

Bundle Price
€44.07€48.97SAVE 10%

You save €4.90 with this bundle

View All Products