GHRP-1
First-generation growth hormone-releasing hexapeptide; precursor to GHRP-2/-6.
Acute growth-hormone pulse within roughly 30 to 60 minutes of dosing; body-composition effects build over weeks.
Store the lyophilized powder refrigerated (2 to 8 C), or frozen for long-term storage, protected from light. After reconstitution with bacteriostatic water, keep refrigerated and use within about 4 weeks.
Clinical Evidence
What the literature says
Scientific Overview
GHRP-1 is the original synthetic ghrelin-mimetic hexapeptide developed by Bowers et al. in the late 1970s. It was the template that gave rise to GHRP-2 and GHRP-6, and is rarely sold today because both successors are stronger and cleaner. Most modern research relies on GHRP-2 instead.
Citations (4)
- Synthetic Growth Hormone-Releasing Peptides (GHRPs): A Historical Appraisal of the Evidences Supporting Their Cytoprotective EffectsReview
- Growth Hormone Secretagogue Treatment in Hypogonadal Men Raises Serum Insulin-Like Growth Factor-1 LevelsPubMed
- The Safety and Efficacy of Growth Hormone SecretagoguesReview
- The Role of Growth Hormone Secretagogues and Ghrelin in Feeding and Body CompositionReview
Research Guide
How users approach this compound
The following reflects patterns observed in research literature and community protocols. This is not medical advice and does not constitute a clinical recommendation.
Research Protocols
Common DosagesGH Pulse
“SC, empty stomach”
Dosages listed are common research protocols found in peer-reviewed literature and clinical trials. Individual results and requirements may vary significantly in a research context.
Labs to monitor
Educational context only, not a testing mandate. Any bloodwork decisions belong with your clinician.
- IGF-1: Primary downstream marker of growth-hormone-axis activity.
- Fasting glucose / HbA1c: GH-axis stimulation can reduce insulin sensitivity over time.
Dose Calculator
Peptide Reconstitution Calculator
Total amount of peptide in the vial.
Volume of water used to mix.
Draw to this mark
or 0.08 mL on a U-100 syringe
Stack GHRP-1with…
Curated stacking partners researched alongside GHRP-1. Each link opens a dedicated stack page with combined benefits, side-effect overlap, and half-life considerations.
- Recovery stackGHRP-1 + BPC-157The recovery king; speeds up tendon, muscle, and gut healing for faster training turnarounds.
- Recovery stackGHRP-1 + TB-500Boosts tissue repair and reduces inflammation, perfect for injury-prone athletes.
- Recovery stackGHRP-1 + KPVAnti-inflammatory tripeptide derived from α-MSH; gut and skin healing without sedation.
- Recovery stackGHRP-1 + Pentadeca Arginate (PDA)Arginate-salt analog of BPC-157 developed for improved injection stability and tissue repair.
GHRP-1 by goal
Read GHRP-1's profile filtered through specific research goals.
Related Tools
Not medical advice
Information on DoseVault is for educational purposes only and is not a substitute for medical advice, diagnosis, or treatment from a qualified healthcare provider.