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Growth hormone-releasing hormone analog

Sermorelin reconstitution.

Sermorelin vials range from 3 mg to 15 mg. With 2 mL bacteriostatic water, common doses of 200-500 mcg before bed map cleanly to U-100 syringe unit marks.

Unit marks on a U-100 insulin syringe — 2 mL bacteriostatic water
Dose3 mg vial5 mg vial9 mg vial15 mg vial
200 mcg13.3units8units4.4units2.7units
300 mcg20units12units6.7units4units
500 mcg33.3units20units11.1units6.7units

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Sermorelin specifics

What to know about this peptide.

Half-life

Half-life ~10-20 minutes; works by stimulating endogenous GH pulses. Typically dosed before bed.

Stability after mixing

Refrigerate after reconstitution. Stable 28 days. Slightly more fragile than synthetic peptides — handle gently.

Typical use

Mild GH support, often for adult GH-decline protocols. Less potent than CJC-1295/Ipamorelin combination but well-studied.

Not medical advice

The math on this page is correct for the listed vial and BAC-water volume. The decision to reconstitute and inject Sermorelin belongs to you and a clinician who knows your full history — not to a webpage.

Frequently asked

Sermorelin questions

What vial size is Sermorelin usually sold in?

Sermorelin most commonly ships as 3 mg or 5 mg or 9 mg or 15 mg of lyophilized powder. The standard reconstitution is 2 mL of bacteriostatic water, which yields clean unit-mark math on a U-100 insulin syringe for the doses used in most protocols.

How much bacteriostatic water do I add to a Sermorelin vial?

The standard volume is 2 mL of bacteriostatic water. You can use more (easier to draw, lower concentration) or less (more concentrated, smaller draw volume) without changing the peptide itself — only the syringe math changes. The dose table on this page is pre-calculated for 2 mL.

What is the half-life of Sermorelin?

Half-life ~10-20 minutes; works by stimulating endogenous GH pulses. Typically dosed before bed.

How long does reconstituted Sermorelin last in the fridge?

Refrigerate after reconstitution. Stable 28 days. Slightly more fragile than synthetic peptides — handle gently.

What is Sermorelin typically used for?

Mild GH support, often for adult GH-decline protocols. Less potent than CJC-1295/Ipamorelin combination but well-studied.

What syringe should I use for Sermorelin?

U-100 insulin syringes (29–31 gauge, 8–13 mm needle) are standard for subcutaneous peptide injection. Each unit on a U-100 syringe equals 0.01 mL. The dose table above shows how many units to draw for each common dose, given the vial size and standard bacteriostatic water volume.

More peptides

Other reconstitution guides.

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