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AMIRAVOResearch Library
Cycle-length evidence

GHRP-2 cycle length: what human studies ran

Approved outside the USBLimited human data
Short answer: there is no established GHRP-2 cycle length, and we found no human studies that report one.

Treatment and follow-up in human studies

No human study durations are recorded.

What has not been tested

  • On-and-off schedules or breaks between courses.
  • Repeated courses and long-term exposure beyond the periods listed.
  • GHRP-2 combined with other compounds, unless a study above says so.

Frequently asked questions

Is there an established GHRP-2 cycle length?
No. We found no human studies that report a treatment duration for GHRP-2.
What is the longest human study of GHRP-2?
None is recorded.
Do study durations tell me how long to use something?
No. A study duration is how long investigators administered a compound to selected participants under monitoring. It is not a recommended course, and a break between courses has not been tested for any compound on this site that is not approved.
GHRP-2 dosing reference Full research page

References

  1. Pralmorelin: GHRP 2, GPA 748, growth hormone-releasing peptide 2, KP-102 D, KP-102 LN, KP-102D, KP-102LN Drugs R D. 2004
  2. Pharmacological characteristics of KP-102 (GHRP-2), a potent growth hormone-releasing peptide Arzneimittelforschung. 2004
  3. A simple diagnostic test using GH-releasing peptide-2 in adult GH deficiency Eur J Endocrinol. 2007
  4. Adult growth hormone deficiency: current concepts Neurol Med Chir (Tokyo). 2014
  5. Package insert: GHRP Kaken 100 Injection (pralmorelin hydrochloride), 3rd revision PMDA (Japan) prescription drug information. 2025
  6. Growth hormone releasing peptide-2 (GHRP-2), like ghrelin, increases food intake in healthy men J Clin Endocrinol Metab. 2005
  7. Obese subjects respond to the stimulatory effect of the ghrelin agonist growth hormone-releasing peptide-2 on food intake Obesity (Silver Spring). 2006
  8. Robust growth hormone responses to GH-releasing peptide 2 in adolescents J Pediatr Endocrinol Metab. 2024
  9. Assessment of anterior pituitary reserve capacity based on growth hormone response to growth hormone-releasing peptide-2 test in the elderly Growth Horm IGF Res. 2023
  10. Bulk Drug Substances Nominated for Use in Compounding Under Section 503A of the FD&C Act (categories 1, 2 and 3; updated May 14, 2026) FDA. 2026
  11. International Standard: Prohibited List 2026 (S0 Non-approved substances; S2 Peptide hormones, growth factors, related substances and mimetics) World Anti-Doping Agency. 2026
  12. A receptor in pituitary and hypothalamus that functions in growth hormone release Science. 1996
  13. Ghrelin is a growth-hormone-releasing acylated peptide from stomach Nature. 1999