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IGF-1 DES: the complete guide

IGF-1 DES is a truncated variant of IGF-1 (des[1-3]) with reduced IGFBP-3 binding affinity, producing a stronger local effect at the injection site due to higher free-IGF-1 concentration.

Written by Peptide Protocol Editorial Medically reviewed per our review process Last reviewed
ClassShort-acting IGF-1 analog
Half-lifeApproximately 20–30 minutes
Typical dose30–75 mcg per injection, pre- or post-workout local administration
CategoryGrowth hormone axis / IGF
Research useLocalized muscle-targeted research, short-duration IGF-1 signaling
FDA statusNot FDA approved. Research use only in the US.

How IGF-1 DES works

The truncation reduces binding to IGFBP-3, allowing more free IGF-1 to interact with local IGF-1 receptors. Researchers use it for localized anabolic signaling rather than systemic IGF-1 elevation.

Typical IGF-1 DES dosage

Commonly reported research ranges: 30–75 mcg per injection, pre- or post-workout local administration.

Dose should always be individualized. Factors that influence it include bodyweight, research goal, tolerance, and specific compound batch. The information below is educational, not a prescription.

How to reconstitute IGF-1 DES

A widely used reconstitution for a 1 mg vial is 1 ml of bacteriostatic water. With a typical 50 mcg dose this works out to the unit count shown in the calculator below.

Open the IGF-1 DES reconstitution calculator →

Pre-filled with the common 1 mg + 1 ml ratio. Adjust for your own vial.

Half-life and administration frequency

Approximately 20–30 minutes.

This half-life informs how often IGF-1 DES is typically dosed. Shorter half-lives usually mean more frequent dosing to maintain plasma levels; longer half-lives allow daily, weekly, or less-frequent administration depending on the compound.

Reported side effects

This list reflects effects reported in available literature or user logs. It is not exhaustive. Adverse reactions should be discussed with a qualified clinician.

Common IGF-1 DES stacks

Storage and handling

Lyophilized: refrigerated. Reconstituted: refrigerated, use within 14 days.

FDA and regulatory status

Not FDA approved. Research use only in the US.

IGF-1 DES clinical trials and evidence

For clinical-trial and primary-literature context, start with the sources below. We prioritize official drug labels, ClinicalTrials.gov records, and PubMed-indexed literature when available.

Track your IGF-1 DES protocol on iPhone

Peptide Protocol logs every dose, calculates reconstitution for you, and keeps your full protocol on one calm screen.

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Frequently asked questions

What is IGF-1 DES?

IGF-1 DES is a truncated variant of IGF-1 (des[1-3]) with reduced IGFBP-3 binding affinity, producing a stronger local effect at the injection site due to higher free-IGF-1 concentration.

How does IGF-1 DES work?

The truncation reduces binding to IGFBP-3, allowing more free IGF-1 to interact with local IGF-1 receptors. Researchers use it for localized anabolic signaling rather than systemic IGF-1 elevation.

What is a typical IGF-1 DES dose?

Commonly reported ranges are 30–75 mcg per injection, pre- or post-workout local administration. This is research information, not a recommendation — dosing should be individualized under clinical guidance.

What is the half-life of IGF-1 DES?

Approximately 20–30 minutes. This influences how often it is administered.

How do you reconstitute IGF-1 DES?

A common approach is to add 1 ml of bacteriostatic water to a 1 mg vial. Use the reconstitution calculator for exact unit counts.

What are the side effects of IGF-1 DES?

Hypoglycemia (especially if paired with insulin); Injection-site soreness; Possible tissue-localized effects — limited human safety data.

Is IGF-1 DES FDA approved?

Not FDA approved. Research use only in the US.

Are there clinical trials for IGF-1 DES?

Registered or published clinical-trial sources for IGF-1 DES are listed in the references section below. Evidence depth varies widely by compound, so check the cited trial registries and primary literature before relying on any claim.

References

  1. IGF-1 DES / des(1-3) IGF-1 literatureNational Library of Medicine. Primary research on the truncated IGF-1 variant
  2. Francis et al. — Des(1-3) IGF-1 activity and IGFBP bindingPubMed. Foundational characterization of des(1-3) IGF-1
  3. IGF-1 variants clinical recordsClinicalTrials.gov. Limited registered studies

Sources listed above were used to verify the claims on this page. See our editorial policy for how we source information.

Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.