Kisspeptin

How it works

It tells the brain to release GnRH, which raises LH, FSH and sex hormones.

What people use it for

• Fertility research
• Boosting testosterone or libido (claimed)

What the research shows

• Small studies in people show it raises reproductive hormones.
• Used experimentally to trigger egg release in IVF.

Side effects & risks

• Effects of repeated use are unknown
• Product quality is not checked

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.

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.