What purity is this product?

All PeptideBull products are HPLC-tested to ≥99% purity. A Certificate of Analysis (COA) is available for every product.

Is this product for human consumption?

No. All products sold on PeptideBull are strictly for in-vitro laboratory research use only. Not for human or veterinary consumption.

How should I store this peptide?

Store lyophilized peptide at −20°C. Once reconstituted with bacteriostatic water, refrigerate at 2–8°C and use within 28 days.

How do I reconstitute this peptide?

Add sterile bacteriostatic water slowly along the inner vial wall and gently swirl — do not shake. Allow the peptide to dissolve naturally.

What is the shipping method?

PeptideBull ships domestically within the USA. Orders are processed within 1–2 business days. Discreet, professional packaging on all shipments.

DSIP

Name: DSIP
Brand: Ultima Pharma
Availability: InStock

Ultima Pharma

$46.00

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Ultima Pharma Beligas Pharma No-Label ($46) No-Label ($58)

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This product is intended for laboratory and research use only. Not for human consumption.

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide first isolated from rabbit cerebral venous blood and studied for its role in sleep regulation and neurological research. Preclinical studies investigate DSIP for its influence on slow-wave sleep induction, stress response modulation, cortisol regulation, and neuroprotective activity. Researchers have also explored its interactions with the endocrine system, including effects on LH, GH, and somatostatin secretion. DSIP represents a unique research tool at the intersection of sleep science and neuroendocrinology. PeptideBull supplies DSIP at verified research-grade purity for authorized laboratory settings. Not intended for human consumption, therapeutic use, or self-administration.