Sermorelin recommended dosage is typically 100–300 mcg injected under the skin at bedtime. See a full dose chart, timing tips, and safety notes.
The typical sermorelin recommended dosage for adults is 100 to 300 micrograms (mcg) injected subcutaneously once daily, usually 30 to 60 minutes before bedtime. Most prescribers start patients at 100–200 mcg per night and adjust based on IGF-1 blood work, side effects, and treatment goals. Sermorelin is a prescription peptide sold through compounding pharmacies, so a licensed healthcare provider should set and monitor your dose rather than a Reddit thread or a bodybuilding forum.
Typical Sermorelin Dose Ranges at a Glance
Sermorelin is a growth hormone-releasing hormone (GHRH) analog. Rather than delivering growth hormone directly, it prompts the pituitary to release the body's own GH in pulses. Sermorelin's mechanism explains why the dose is measured in micrograms, why it is taken at night, and why taking more does not automatically produce better results.
| Purpose | Commonly Reported Dose | Frequency | Notes |
|---|---|---|---|
| Starting / tolerability | 100 mcg | Once nightly | Low entry point used to gauge sensitivity |
| Standard adult protocol | 200 mcg | Once nightly | The most frequently cited adult dose |
| Higher-end adult protocol | 300 mcg | Once nightly | Sometimes used for older adults under clinician supervision |
| Body composition goals | 200–300 mcg | Once nightly | Paired with resistance training and a high-protein diet |
| Historical pediatric label (Geref) | ~30 mcg/kg | Once nightly | Original FDA-approved indication; the product was discontinued |
Common clinical practice and compounding pharmacy protocols guide adult sermorelin dosing, because no current FDA-approved adult label exists. Many providers deliberately stay at 200 mcg because pushing higher tends to increase side effects faster than it increases benefits.
How Much Sermorelin to Inject Daily and When
Nightly subcutaneous injection is the standard route. The body releases most of its natural growth hormone during deep sleep, so dosing before bed works with that rhythm instead of against it.
- Timing: 30 to 60 minutes before you go to sleep.
- Empty stomach: wait at least two hours after eating. Carbohydrates and fats can blunt the growth hormone pulse.
- Needle: a short 29–31 gauge insulin syringe, injected into the fatty layer of the abdomen, thigh, or upper arm.
- Rotation: move the site each night to reduce soreness and lipohypertrophy.
- Consistency: many protocols run five to six nights per week rather than every single night.
A simple log — date, dose, injection site, sleep quality, and any side effects — gives your prescriber far more useful information than a single blood test.
Sermorelin Dose Chart for Men and Women
Sex does not change the nominal dose, but it does change how people respond. Women often report flushing, headache, and water retention at doses that men tolerate easily, so several clinics use a gentler starting point when planning sermorelin dosage for women.
| Group | Typical Starting Dose | Typical Maintenance Dose | Considerations |
|---|---|---|---|
| Men | 200 mcg nightly | 200–300 mcg nightly | IGF-1 monitored every 8–12 weeks |
| Women | 100 mcg nightly | 100–200 mcg nightly | Higher sensitivity to fluid retention and flushing |
| Adults over 60 | 100 mcg nightly | 100–200 mcg nightly | Often started lower and titrated slowly |
Anyone with active cancer, uncontrolled diabetes, or a history of pituitary disease should not use sermorelin.
Sermorelin Nasal Spray Dosage and Other Delivery Methods
Nasal spray versions of sermorelin exist, but they are not FDA-approved and absorption through the nasal lining is highly variable. Reported nasal doses often run higher than injectable doses — commonly 300 to 600 mcg per day split into one or two administrations — because only a fraction reaches the bloodstream intact.
If you use a nasal product, treat the label instructions as a starting point and confirm the source and concentration with a pharmacist. Underground or "research grade" vials sold without a prescription carry real risks: unknown purity, incorrect concentration, and no sterility testing.
How to Use a Sermorelin Calculator or Dose Chart
A sermorelin calculator simply converts your vial strength and water volume into syringe units. The math is straightforward once you know the concentration.
- Step 1: A 5 mg vial reconstituted with 2 mL of bacteriostatic water equals 2.5 mg/mL, or 2,500 mcg/mL.
- Step 2: Divide your target dose by the concentration. For 200 mcg: 200 ÷ 2,500 = 0.08 mL.
- Step 3: On a U-100 insulin syringe, 0.08 mL equals 8 units.
- Step 4: Double-check with a second method, such as a printed dose chart, before you draw the syringe.
A single arithmetic error can mean a tenfold overdose. If the numbers look unusual, stop and verify them with your prescriber or pharmacist before injecting.
Stacking Sermorelin with Ipamorelin, CJC-1295, or Tesamorelin
Sermorelin is frequently blended with other GH-related peptides. A common sermorelin ipamorelin dosage is 100–200 mcg of each peptide in a single nightly injection, which is why the two are often sold as a premixed vial. Providers who prefer a longer-acting option sometimes follow the recommended dosage for cjc 1295 ipamorelin instead.
| Protocol | Typical Adult Dose | Frequency | Notes |
|---|---|---|---|
| Sermorelin alone | 100–300 mcg | Once nightly | GHRH analog; shortest-acting option |
| Sermorelin + ipamorelin | 100–200 mcg each | Once nightly | Frequently combined in one vial |
| CJC-1295 (no DAC) + ipamorelin | 100 mcg each | 1–3 times daily | Shorter half-life, more frequent dosing |
| Tesamorelin | 2 mg | Once nightly | FDA-approved for HIV-associated lipodystrophy |
Tesamorelin is a different molecule given at a much larger dose, and the tesamorelin recommended dosage of 2 mg nightly should never be substituted for a sermorelin dose. Athletes who stack GH peptides with tissue-repair peptides sometimes cross-reference a bpc-157 dosage chart by weight, but BPC-157 is dosed for an entirely different purpose and is not interchangeable with sermorelin.
Side Effects, Safety, and Legal Status
Sermorelin is generally described as well tolerated at standard doses. Most complaints are mild and show up in the first two weeks.
- Injection site redness, bruising, or stinging
- Flushing, warmth, or a brief headache after injecting
- Drowsiness or vivid dreams
- Increased appetite
- Joint stiffness, fluid retention, or numbness at higher doses
Sermorelin is not FDA-approved for general adult use in the United States; the original pediatric product was discontinued, and adult use is off-label through licensed compounding pharmacies. Sermorelin requires a prescription, regular IGF-1 monitoring, and a conversation with a healthcare professional about your personal risk profile. Sermorelin is not a cure for any condition and does not replace diet, training, or sleep.
Frequently Asked Questions
What is the recommended dosage of sermorelin for adults?
Most adult protocols use 100–300 mcg injected under the skin once daily at bedtime, with 200 mcg being the most commonly cited dose. A prescriber typically starts at 100–200 mcg and adjusts based on IGF-1 levels, side effects, and goals. There is no FDA-approved adult dosing label, so your dose should be set by a licensed clinician.
Is sermorelin nasal spray as effective as sermorelin injections?
Nasal sermorelin is not FDA-approved and is absorbed inconsistently through the nasal lining, so it usually requires a higher dose to produce a comparable effect. Injectable subcutaneous sermorelin has far more clinical history and more predictable absorption. If you use a nasal product, confirm its source and concentration with a pharmacist.
Can sermorelin help with weight loss?
Sermorelin may support body composition indirectly by raising growth hormone and IGF-1, which can improve sleep, recovery, and lean mass when combined with diet and training. It is not an FDA-approved weight-loss drug, and fat loss results vary widely between individuals. Anyone considering it should discuss risks and monitoring with a healthcare professional.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.