This content is for educational purposes only. Not medical advice. Always consult a licensed healthcare professional before using any peptides.

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CognitiveLow RiskNot FDA-approved. Endogenous neuropeptide in research.

DSIP

The Deep Sleep Signal

DSIP (Delta Sleep Inducing Peptide) is a naturally occurring neuropeptide that promotes delta-wave (deep) sleep by modulating sleep architecture and circadian rhythm. It reduces cortisol and stress hormone levels, making it valuable for people with disrupted sleep patterns, high stress, or shift work. One of the gentlest sleep-promoting peptides available.

If You Take This

  • Promotes deep delta-wave sleep
  • Regulates and normalizes circadian rhythm
  • Reduces cortisol and stress hormones
  • Improves sleep onset latency
  • No morning grogginess (unlike pharmaceutical sleep aids)
  • Supports natural growth hormone release during sleep

Protocol

Dosing
100-300mcg subcutaneous or intranasal before bed. Start at 100mcg and increase based on response. Intranasal route has faster onset.
Cycle Length
2-4 weeks on, 2 weeks off. Some use as needed rather than daily. Tolerance can develop with continuous use.
Half-Life
15-20 minutes
Best Time
Before bed (30-60 minutes prior)
Method
Subcutaneous injection or intranasal spray

Stacks Well With

MK-677 (complementary sleep benefits)Selank (anxiety reduction)Magnesium

Avoid With

Avoid combining with pharmaceutical sleep medicationsCaution with CNS depressants

Side Effects

  • Mild headache in some users
  • Vivid dreams
  • Slight grogginess if dose too high (reduce dose)
  • Very well tolerated overall

Where to Buy

PepStack Price Guarantee

We track prices across 5+ verified vendors so you don't have to. Every vendor is vetted for purity testing, third-party COAs, and shipping reliability.

Prices last verified: April 3, 2026

Ascension Peptides

★ 4.7
BEST PRICE
$3.98
Vial
10mg
Purity
99%+
Shipping
2-4 business days
Status
In Stock
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Ignite Peptides

★ 4.4
$30.00
Vial
5mg
Purity
99%
Shipping
—
Status
In Stock
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Core Peptides

★ 4.8
$41.00
Vial
5mg
Purity
99%
Shipping
2-3 business days
Status
In Stock
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Biotech Peptides

★ 4.4
$44.00
Vial
5mg
Purity
99%
Shipping
2-5 business days
Status
In Stock
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Pinnacle Peptide Labs

★ 4.3
$49.99
Vial
5mg
Purity
99%
Shipping
—
Status
In Stock
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Limitless Biotech

★ 4.5
$57.99
Vial
5mg
Purity
98.5%
Shipping
3-5 business days
Status
In Stock
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For educational and informational purposes only. Not medical advice. Always consult a healthcare provider before starting any peptide protocol.