Educational content only. Not medical advice, and no doctor-patient relationship is created. Read the medical disclaimer

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Regenerative & Cellular Health

Peptide

DSIP

Also known as: Delta sleep-inducing peptide · emideltide

A 1970s “sleep peptide” whose human sleep benefits have not held up.

Tier 3 · Education only

Grade D · Preclinical only

Educational content only, not medical advice. Discussion here does not mean this therapy is prescribed by Youthful Medicine or available to you. Read the medical disclaimer

U.S. regulatory status

Not FDA-approved. FDA’s advisory committee voted (7–6) against adding it to the compounding list in July 2026.

What it is

A nine-amino-acid peptide first isolated from rabbits during sleep.

How it is thought to work

Its mechanism in humans is unclear.

BLOODSTREAMINSIDE THE CELLNucleusEnzyme2 to 50 amino acidsLooking for a matchShape fitsSignal switched onCleared in minutes to hours
Step 1 of 5
How it works · Peptide signaling
Amino acids, linked
A peptide is a short chain of amino acids, usually 2 to 50 long. Your body makes thousands of them to carry messages.

Animations simplify biology for teaching. They are not a claim that this peptide works this way in people.

What the research shows

Early small studies were inconsistent, and modern controlled evidence is lacking.

Safety and considerations

Unknown long-term safety.

Our position

Education only. Sleep comes first through the foundations.

Video lesson

In the studio
DSIP
Dr. Tahir is recording this lesson. Check back soon.

AT A GLANCE

Quadrant

Regenerative & Cellular Health

Sub-pillar

Neural & Recovery

Tier

Tier 3 · Education only

Evidence grade

Grade D · Preclinical only

Last reviewed

Is this right for you?

Only a physician who has evaluated you can answer that. Consultations are with licensed Youthful Medicine providers.

Never use products labeled “research use only” or “not for human use.” Purity, dose and sterility are unverified.

YOUTHFUL

PEPTIDE EDUCATION

Plain-language, evidence-graded education on peptides and the foundations of longevity. Written and reviewed by Farhan Tahir, MD, FACR, Dip. ABOM.

YOUTHFUL MEDICINE

Doylestown, PA

New York, NY

YouthfulPeptide.com is an educational resource from Youthful Medicine. Content is for general information only and is not medical advice. Using this site does not create a doctor-patient relationship. Many peptides discussed here are not FDA-approved, and discussion does not mean Youthful Medicine prescribes them. Always consult a licensed healthcare provider before starting, stopping or changing any treatment. In an emergency, call 911.

© 2026 MDNUTRICS PLLC dba Youthful Vitality and Longevity Medicine®. All rights reserved.

YOUTHFUL

PEPTIDE EDUCATION

Plain-language, evidence-graded education on peptides and the foundations of longevity. Written and reviewed by Farhan Tahir, MD, FACR, Dip. ABOM.

YOUTHFUL MEDICINE

Doylestown, PA

New York, NY

YouthfulPeptide.com is an educational resource from Youthful Medicine. Content is for general information only and is not medical advice. Using this site does not create a doctor-patient relationship. Many peptides discussed here are not FDA-approved, and discussion does not mean Youthful Medicine prescribes them. Always consult a licensed healthcare provider before starting, stopping or changing any treatment. In an emergency, call 911.

© 2026 MDNUTRICS PLLC dba Youthful Vitality and Longevity Medicine®. All rights reserved.