ACTH (Adrenocorticotropic Hormone)

ACTH is an endocrine peptide that connects pituitary signaling with adrenal cortisol production. Its physiological functions are well established, while claims about particular clinical benefits require evidence beyond the supplied guide.

ACTH originates in the anterior portion of the pituitary and acts on the adrenal cortex. The resulting cortisol signaling influences energy metabolism, immune activity, and physiological adaptation to stress.

ACTH promotes adrenal glucocorticoid synthesis and secretion, providing a link between endocrine signaling and stress physiology. Its effects on inflammatory and immune processes may involve downstream cortisol activity, although the notes do not distinguish these effects from any additional mechanisms.

1. 01

   Molecular target

2. 02

   Cellular signal

3. 03

   Biological process

LEVEL 01 · Basic biology

A biological mechanism or molecular interaction is described. No claim about human outcomes.

Evidence levels reflect the state of documented research only. They are not rankings of popularity, quality or suitability, and a higher level never implies that a compound is an approved medicine.

The source guide presents ACTH as relevant to diagnostic assessment and describes potential applications in inflammatory and autoimmune conditions. It also proposes a role in stress-related complaints under the label of adrenal fatigue, without supplying supporting clinical evidence. The guide attributes several adverse effects to elevated cortisol and emphasizes clinician oversight.

Source: The Complete Guide to Peptides: Unlocking the Secrets to Health, Healing and Longevity — Hack Smith, Chapter 6, Introduction to Peptides (page references not verified)

Summarised in our own wording from the cited reference. The reference is a popular guide, not peer-reviewed literature; its statements are reported here as source claims rather than established facts.

Dosage, reconstitution and administration guidance is deliberately excluded from this platform.

The supplied material does not establish the strength of evidence for individual clinical applications or separate endogenous ACTH biology from the properties of medicinal preparations. Adrenal fatigue is not a recognized medical diagnosis and should not be treated as an established research indication.

Potential adverse effects associated with increased glucocorticoid activity include changes in body weight or mood, edema, elevated blood pressure, and features of cortisol excess. Safety data are limited in the supplied source, and its assertion about adrenal suppression requires clarification because ACTH directly stimulates adrenal activity. This information is not medical advice; assessment of clinical risks requires a qualified healthcare professional.

Research-stage compound unless otherwise established by a competent authority. Regulatory classification differs between jurisdictions and can change over time; nothing here indicates marketing authorisation.

Primary reference for this entry:

The Complete Guide to Peptides: Unlocking the Secrets to Health, Healing and Longevity — Hack Smith, Chapter 6, Introduction to Peptides (page references not verified)

Suggested literature search terms taken from the source. They are search starting points, not citations to specific studies.

• “ACTH treatment in multiple sclerosis”
• “ACTH hormone in autoimmune disorders”
• “Adrenocorticotropic hormone clinical studies”

Editorial status

source reviewed

Last updated

2026-09-14

Last reviewed

2026-09-13

Language

EN