ACTH 1-39

Also known as: Adrenocorticotropic Hormone, Corticotropin

The full-length adrenocorticotropic hormone with effects on cortisol, cognition, and stress response.

Overview

ACTH 1-39 is the complete 39-amino acid adrenocorticotropic hormone secreted by the anterior pituitary. It stimulates cortisol production and has documented effects on learning, memory, and attention beyond its endocrine functions.

Mechanism of Action

Binds to melanocortin receptors (MC2R primarily, also MC3R/MC4R). Stimulates adrenal cortex to produce cortisol, aldosterone, and androgens. Central effects on attention and memory via MC4R in hippocampus.

Pharmacokinetics

Very short half-life (~10 minutes). Rapid metabolism by proteases. Subcutaneous or IV administration.

Dosing Protocols

Note: These are research protocols from literature. This is not medical advice.

1

Cognitive Research

Dose

0.1-0.5 mg

Frequency

Single dose studies

Duration

Acute

Research protocols only

2

Medical Use (Infantile Spasms)

Dose

150 IU/m²

Frequency

Daily

Duration

2-6 weeks

Under specialist supervision

Stacking Recommendations

Peptides that may be combined based on complementary mechanisms in research settings.

Rationale: ACTH fragment synergy

Synergy: Semax is derived from ACTH 4-10

Research Areas

Adrenal InsufficiencyCognitive EnhancementLearning & MemoryAttentionStress ResponseInfantile Spasms

Key Research Findings

  • 1Proven treatment for infantile spasms (West syndrome)
  • 2Enhanced attention and visual memory in human studies
  • 3Improved learning retention in animal models
  • 4Neuroprotective effects independent of cortisol

Side Effects & Contraindications

Reported Side Effects

  • Elevated cortisol
  • Fluid retention
  • Hypertension
  • Mood changes
  • Glucose intolerance

Contraindications

  • Cushing's syndrome
  • Systemic fungal infections
  • Ocular herpes simplex
  • Uncontrolled hypertension

Safety Considerations

Can cause significant cortisol elevation. Monitor for Cushing's symptoms. Use only under medical supervision.

Storage Requirements

Refrigerate 2-8°C

Scientific References

Quick Reference

Sequence
SYSMEHFRWGKPVGKKRRPVKVYPNGAEDESAEAFPLEF
Molecular Weight
4541 g/mol
Half-Life
~10 minutes
Bioavailability
Injectable only
Research Stage
approved
Administration
Subcutaneous, intramuscular, or IV