PinnyPeptide

IGF-1 DES vs Ipamorelin

Side-by-side comparison: effects, dosing ranges, side effects, regulatory status, and reconstitution.

Peptide A

IGF-1 DES

Muscle Growth

Truncated IGF-1 variant — site-specific, short-acting muscle growth signal.

Peptide B

Ipamorelin

Growth Hormone

Selective growth hormone secretagogue with minimal side effects.

Typical vial

1 mg

Typical dose

20-100 mcg

Half-life

~20-30 minutes

FDA status

Not FDA approved.

Typical vial

5 mg

Typical dose

100-300 mcg

Half-life

~2 hours

FDA status

Not FDA approved for human use. Clinical development discont…

IGF-1 DES effects

  • Strong acute IGF-1 receptor activation at the injection site
  • Promotes muscle cell hyperplasia (increased cell number)
  • Localized hypertrophy when injected intramuscularly
  • Faster clearance than IGF-1 LR3 (less systemic exposure)
  • Anabolic signaling via PI3K-Akt-mTOR

Ipamorelin effects

  • Selectively stimulates growth hormone release
  • Promotes fat metabolism without affecting cortisol
  • Supports lean muscle growth and recovery
  • Improves sleep quality through enhanced GH pulsatility
  • Does not significantly increase appetite or prolactin

IGF-1 DES side effects

  • Localized hypertrophy / asymmetry if always injected in one site
  • Mild hypoglycemia (less than LR3)
  • Injection site discomfort or temporary muscle soreness
  • Theoretical IGF-driven proliferation concerns
  • Lipohypertrophy with repeated same-site injection

Ipamorelin side effects

  • Mild head rush or flushing immediately after injection
  • Transient water retention
  • Injection site irritation
  • Occasional lightheadedness

IGF-1 DES dosing ranges

Site-specific muscle hypertrophy

20-50 mcg per site · Into trained muscle post-workout (IM) · 30-50 days per cycle

General anabolic support

50-100 mcg · Once daily (SubQ) · 30-50 days per cycle

Ipamorelin dosing ranges

GH optimization and anti-aging

100-300 mcg · Two to three times daily (SubQ) · 8-12 weeks

Combined with CJC-1295 (Mod GRF)

100-200 mcg · Two to three times daily · 8-12 weeks

Full IGF-1 DES guide → Full Ipamorelin guide →

IGF-1 DES vs Ipamorelin — common questions

What is the difference between IGF-1 DES and Ipamorelin?

IGF-1 DES: Truncated IGF-1 variant — site-specific, short-acting muscle growth signal. Typical dose 20-100 mcg. Ipamorelin: Selective growth hormone secretagogue with minimal side effects. Typical dose 100-300 mcg. Both fall under the Muscle Growth and Growth Hormone categories.

Can you stack IGF-1 DES and Ipamorelin?

Stacking IGF-1 DES with Ipamorelin is a protocol-design question best raised with a clinician — it depends on your goal, current bloodwork, and whether both peptides target overlapping mechanisms. Both peptides should be tracked independently with separate injection sites and timing. PinnyPeptide supports multi-peptide stacks with automatic injection site rotation.

Which is dosed more frequently, IGF-1 DES or Ipamorelin?

IGF-1 DES is typically dosed: Into trained muscle post-workout (IM) for Site-specific muscle hypertrophy; Once daily (SubQ) for General anabolic support. Ipamorelin is typically dosed: Two to three times daily (SubQ) for GH optimization and anti-aging; Two to three times daily for Combined with CJC-1295 (Mod GRF).

Are IGF-1 DES and Ipamorelin FDA approved?

IGF-1 DES: Not FDA approved. Ipamorelin: Not FDA approved for human use. Clinical development discontinued by Novo Nordisk.

Related peptide comparisons

ace-031 vs igf-1-desfollistatin vs igf-1-desgdf-8-95 vs igf-1-desigf-1-des vs igf-1-lr3igf-1-des vs mgfaod-9604 vs ipamorelin

Tracking either of these?

Log doses, automate injection site rotation, and never lose track of where you last pinned. Free forever.

Get Started Free