GHRP-6
Also known as Growth hormone releasing hexapeptide
One of the first growth-hormone-boosting peptides. Known for making people very hungry.
Quick facts
- Status
- Not an approved medicine
- Evidence
- Limited (short-term human studies)
- Taken as
- Injection under the skin
- Common sizes
- 2 mg, 5 mg, 10 mg
- Category
- Growth hormone secretagogue (experimental)
How it works
It acts on the ghrelin ("hunger hormone") receptor, releasing growth hormone and strongly increasing appetite.
What people use it for
- Raising growth hormone
- Gaining weight or muscle
What the research shows
- Short human studies show it raises growth hormone.
- No long-term studies in healthy people.
Side effects & risks
- Strong hunger
- Water retention
- Higher cortisol and prolactin
- Banned in sport
Is it legal?
Not an approved medicine in the EU, UK or US. In most countries it is illegal to sell it for use in people. Products labelled "research use only" are not checked for quality or purity. Prohibited in sport (WADA Prohibited List).
Storage & safe handling
- Mix with bacteriostatic water: let it run slowly down the inside of the vial and swirl gently — never shake.
- Store the mixed vial in the fridge and follow the use-by period on the label.
- Wipe the vial top with alcohol and use a new sterile needle and syringe every time.
- Rotate injection sites so the same spot is not used again and again.
- Put used needles in a sharps container, not the household bin.
- Get medical help for redness that spreads, fever, swelling or trouble breathing.
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Sources: WADA Prohibited List; Bowers CY, early GHRP research.
Last updated 12 October 2026. Information — not medical advice. PepTimer does not replace a doctor. Many peptides are not approved medicines in the EU, UK or US. Talk to a qualified healthcare provider before starting, changing or stopping any treatment.
Last updated 12 October 2026. Information — not medical advice. PepTimer does not replace a doctor. Many peptides are not approved medicines in the EU, UK or US. Talk to a qualified healthcare provider before starting, changing or stopping any treatment.