A sermorelin dosage chart can help you understand mcg, mL, syringe units, timing, and schedule terms, but it should not be used to choose your own dose. Sermorelin dosing depends on the prescription, formulation, health history, labs, and clinician monitoring. Always follow your prescriber’s label and pharmacist instructions.
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See if you qualify →| Chart field | What it means | What to verify before use |
|---|---|---|
| Medication name | Sermorelin acetate, also called GHRH(1-29) or GRF 1-29 | Make sure the vial or dispensed product matches the prescription label. |
| Dose | The amount of sermorelin, usually written in mcg or mg | Confirm the exact number with your prescriber or pharmacist; do not copy another patient’s dose. |
| Concentration | How much medication is in each mL, such as mg/mL or mcg/mL | Use only the concentration printed on your own vial or pharmacy label. |
| Volume | How many mL are drawn up for a dose | Volume changes when concentration changes, even if the mcg dose is the same. |
| Syringe units | Markings on a syringe, often U-100 units for injections | Units are not the same as mcg. Units must be converted using your exact concentration. |
| Route | How the medication is used, such as subcutaneous injection, nasal spray, or tablet | Follow the route on your prescription label. Do not switch forms on your own. |
| Timing and frequency | When and how often the medication is used | Use the schedule on your label. Timing should come from your clinician’s plan. |
| Storage and beyond-use date | How the pharmacy says to store the medication and when it should no longer be used | Ask the pharmacist if storage instructions are unclear. |
What should a sermorelin dosage chart show?
A good sermorelin dosage chart should explain the fields on your prescription label, not tell every reader to use the same amount. It should show medication amount, concentration, volume, syringe units, route, timing, and frequency, with a clear reminder that the label is the source of truth.
Quick facts: sermorelin dose charts are educational, not prescriptions
Sermorelin acetate is a growth hormone-releasing hormone analog. Human research with GHRH and related analogs has shown stimulation of growth hormone release, including in studies of healthy younger and older adults, but these studies were not online consumer dose charts 1. Side effects and eligibility still matter, especially for people with endocrine disorders or symptoms such as swelling, headache, numbness, or allergic reaction.
The key fields: medication amount, concentration, volume, syringe units, timing, and frequency
The same dose in mcg can require a different draw volume if the vial concentration is different. That is why a chart should separate the amount of medication from the amount of liquid. If you are comparing forms, our guide to oral sermorelin versus injections explains why route and absorption are different questions from dose math.
Why a chart must match your exact vial and prescription label
Compounded formulations can vary by pharmacy, concentration, form, and instructions. A chart from another pharmacy, another patient, or an online calculator may not match your vial. If the number on the syringe does not match the label, pause and ask the pharmacist.
What is sermorelin and how does it work?
Sermorelin acetate is a synthetic version of the first 29 amino acids of growth hormone-releasing hormone, often written as GHRH(1-29) or GRF 1-29 7. The former brand name was Geref; current patient access is often through compounded sermorelin when a licensed clinician decides it is appropriate.
Sermorelin acetate, GHRH(1-29), GRF 1-29, and the former brand Geref
These names point to the same core idea: a peptide that signals the pituitary gland 7. A 2007 review describes sermorelin’s historical use in diagnosis and treatment contexts for growth hormone deficiency in children, but that history should not be stretched into a claim that sermorelin extends lifespan or is proven for wellness outcomes 7.
How GHRH analogs stimulate the pituitary to release growth hormone
Growth hormone-releasing hormone binds receptors in the pituitary gland. In human studies, GHRH or GHRH analogs increased growth hormone response under controlled clinical conditions 1. Those studies help explain mechanism; they do not replace individualized evaluation, and possible adverse effects still require monitoring.
How growth hormone signaling relates to IGF-1
Growth hormone signaling can influence insulin-like growth factor 1, or IGF-1, which clinicians may use as part of growth hormone-axis monitoring 7. IGF-1 is a biomarker, not a guarantee of better sleep, body composition, or longer life. If you want a deeper dosing overview, see our sermorelin dosage guide.
Why can’t one sermorelin dosage chart apply to everyone?
One sermorelin chart cannot fit everyone because concentration, route, medical history, labs, age, medications, and goals can all change a provider’s plan. This is especially important with compounded medications, where the label may differ by pharmacy and formulation.
Different vial concentrations change the volume drawn into the syringe
Concentration is the bridge between a dose amount and a syringe volume. For example, a hypothetical prescribed amount of 300 mcg equals 0.3 mg. If a vial is 1 mg/mL, that example amount would equal 0.3 mL; if a vial is 3 mg/mL, the same example amount would equal 0.1 mL. These are math examples only, not instructions to use that dose.
Health history, labs, age, medications, and treatment goals can change a provider’s plan
Human studies show growth hormone responses can vary in endocrine conditions. For example, GHRH response has been studied in acromegaly and myotonic dystrophy, which supports why endocrine history matters before treatment decisions 3 4.
Why compounded formulations require label-specific instructions
A compounded vial, nasal spray, or tablet should be used only as labeled for that patient. Changing the route or copying a chart can change exposure and risk. For weight-related questions, our article on sermorelin dosage for weight loss explains why evidence for body composition is not the same as a universal dose protocol.
How do mcg, mg, mL, and syringe units work for sermorelin?
Sermorelin units can be confusing because mcg and mg measure drug amount, while mL and syringe units measure liquid volume. The most important conversion is 1 mg = 1,000 mcg.
Micrograms versus milligrams: avoiding a common decimal-place error
| Amount in mcg | Same amount in mg | Safety note |
|---|---|---|
| 100 mcg | 0.1 mg | Educational conversion only; not a recommended dose. |
| 250 mcg | 0.25 mg | Educational conversion only; not a recommended dose. |
| 300 mcg | 0.3 mg | Educational conversion only; not a recommended dose. |
| 500 mcg | 0.5 mg | Educational conversion only; not a recommended dose. |
| 1,000 mcg | 1 mg | Educational conversion only; not a recommended dose. |
mL versus units on a U-100 syringe
On a U-100 insulin syringe, 100 units equals 1 mL. That means 10 units equals 0.1 mL, 25 units equals 0.25 mL, and 50 units equals 0.5 mL. But those unit marks do not tell you how many mcg are in the syringe unless you also know the vial concentration.
Example conversion framework to discuss with a pharmacist, without giving a universal dose
- 1Find the prescribed medication amount on your label, written in mcg or mg.
- 2Find the vial concentration, written as mg/mL or mcg/mL.
- 3Convert mcg to mg if needed: divide mcg by 1,000.
- 4Calculate volume: dose in mg divided by concentration in mg/mL equals mL.
- 5Convert mL to U-100 units if using that syringe type: mL multiplied by 100 equals units.
- 6Before using the medication, verify the calculation with the pharmacist or prescriber.
What would an educational sermorelin dosage chart look like?
An educational sermorelin dosage chart should look like a safety checklist plus a math reference. It should avoid telling every reader how much to use.
| Example only | If the label says... | The math would be... | What this does not mean |
|---|---|---|---|
| Concentration-to-volume example A | Hypothetical prescribed amount: 300 mcg; concentration: 1 mg/mL | 300 mcg = 0.3 mg; 0.3 mg ÷ 1 mg/mL = 0.3 mL = 30 U-100 units | This is not a universal sermorelin dose. |
| Concentration-to-volume example B | Hypothetical prescribed amount: 300 mcg; concentration: 3 mg/mL | 300 mcg = 0.3 mg; 0.3 mg ÷ 3 mg/mL = 0.1 mL = 10 U-100 units | The same mcg amount can be a different syringe volume. |
| Concentration-to-volume example C | Hypothetical prescribed amount: 250 mcg; concentration: 2.5 mg/mL | 250 mcg = 0.25 mg; 0.25 mg ÷ 2.5 mg/mL = 0.1 mL = 10 U-100 units | This does not apply unless your exact label matches. |
These examples show why a calculator can be helpful for checking math but unsafe if it is used to choose a dose. For online access questions, see our guide on how to buy sermorelin online safely.
3-min quiz
Considering sermorelin with clinician guidance?
At Chia, sermorelin care starts with a 100% online health questionnaire reviewed by a licensed US provider. A prescription requires a medical evaluation and is not guaranteed. If prescribed, compounded medications are prepared by state-licensed 503A pharmacies and shipped to your door. Compounded drugs are not FDA-approved.
When is sermorelin usually taken and why does timing matter?
Sermorelin timing is often discussed in relation to the body’s natural growth hormone rhythm, but your timing instructions should come from your prescriber and label. Human GHRH studies support the mechanism of pituitary growth hormone stimulation, not a one-size-fits-all bedtime rule 1 5.
What human studies show about GHRH stimulating growth hormone release
In a randomized study, a long-acting GHRH analog stimulated growth hormone in healthy young and elderly adults 1. Other controlled studies used GHRH to test how medications or metabolic factors change growth hormone response 3 5. These are clinician-run studies, not home-dosing templates.
Why many protocols discuss nighttime dosing
Growth hormone is released in pulses, with sleep playing an important role in normal physiology 11. That is why many educational protocols discuss night use. Still, timing may change based on the formulation, side effects, other medicines, and a clinician’s plan.
Why timing instructions should come from the prescriber and label
If your label says something different from an online chart, follow the label and ask the pharmacy to clarify. This is especially important if you miss doses, travel, change sleep schedule, or notice side effects.
What monitoring may a clinician consider during sermorelin treatment?
A clinician may consider IGF-1, symptoms, medical history, medication list, and endocrine risk before or during sermorelin care. Monitoring is individualized because growth hormone-axis response varies across people and health conditions.
IGF-1 and growth hormone axis context
IGF-1 can help clinicians understand growth hormone signaling, but it is only one piece of the picture. A completed phase 3 study evaluated GHRH and arginine testing for adult growth hormone deficiency diagnosis, showing that this axis is assessed in structured clinical settings rather than by home charts alone 9.
Medical history and endocrine conditions that may affect eligibility
People with known pituitary disease, acromegaly, abnormal growth hormone or IGF-1 results, cancer history, pregnancy, or complex endocrine conditions may need special review or may not be candidates. GHRH response has been studied in acromegaly, which is one reason endocrine history should be reviewed before treatment 6.
When to contact a clinician or pharmacist about the prescription
- The vial concentration does not match the written instructions.
- You are unsure how many mL or syringe units to draw.
- The medication looks different than expected.
- You develop swelling, numbness, severe headache, rash, trouble breathing, or other concerning symptoms.
- You start a new medication or receive a new endocrine diagnosis.
What side effects and safety issues should patients know?
Sermorelin safety depends on the person, dose, form, and monitoring plan. Possible issues include injection-site reactions, headache, flushing, dizziness, swelling, numbness or tingling, nausea, and allergic reaction; endocrine history can also affect risk 7.
Injection-site reactions and general medication safety considerations
Subcutaneous injection can cause local redness, soreness, itching, or bruising 7. Nasal and tablet forms have different practical issues, such as local irritation or absorption questions. The form matters, so do not switch between injection, nasal spray, and tablets unless your prescriber changes the plan.
Why symptoms such as swelling, headache, numbness, or allergic reaction need clinical guidance
Symptoms such as swelling, severe headache, numbness, rash, wheezing, or trouble breathing should not be handled with an online chart. Ask your care team what symptoms should prompt a message, a same-day call, or urgent care before you start.
Why people with certain endocrine disorders need careful review
Growth hormone signaling is not isolated from the rest of the endocrine system. Studies in acromegaly and other conditions show that GHRH responses can differ when the endocrine system is altered 3 6. That is why eligibility review is part of safe peptide care.
How does sermorelin treatment work at Chia?
At Chia, compounded sermorelin is available as injection, nasal spray, and tablets when a licensed US provider decides it is clinically appropriate. Compounded sermorelin is not FDA-approved. Sermorelin injection plans currently start from $179/mo, with up-to-date details on the sermorelin product page.
Care starts with a short online health questionnaire. Our providers review health history, goals, and safety factors, then prescribe only when appropriate. If prescribed, medication is compounded in the US by state-licensed 503A pharmacies and shipped to the patient’s door. Patients can message the care team through the portal between visits.
| Chia sermorelin form | What it may fit | What to know |
|---|---|---|
| Injection | Patients whose provider chooses injectable peptide therapy | Plans currently start from $179/mo; dosing is provider-guided. |
| Nasal spray | Patients whose provider chooses an intranasal peptide formulation | Instructions can differ from injections; follow the pharmacy label. |
| Tablets | Patients whose provider chooses an oral peptide formulation | Oral use is not interchangeable with injection or nasal spray. |
Chia also offers multi-treatment protocols that may include compounded sermorelin when appropriate, such as Foundation Longevity and Weight + Muscle. These are still clinician-reviewed treatments; a prescription is never guaranteed. Compounded sermorelin is not FDA-approved.
How is sermorelin different from HGH, CJC-1295, ipamorelin, and tesamorelin?
Sermorelin is a GHRH analog that signals the pituitary to release growth hormone. HGH is growth hormone itself, while CJC-1295, ipamorelin, and tesamorelin are different peptides with different evidence, legal status, and access pathways.
| Option | What it is | Key difference | Evidence and safety framing |
|---|---|---|---|
| Sermorelin | GHRH(1-29), also called GRF 1-29 | Stimulates pituitary growth hormone release | Human GHRH data support mechanism; wellness and longevity outcomes remain investigational. |
| HGH | Human growth hormone | Adds growth hormone directly | Different prescribing rules, risks, and indications than sermorelin. |
| CJC-1295 | Longer-acting GHRH analog | Designed for longer growth hormone-axis signaling | Different peptide; see our CJC-1295 overview for evidence and safety context. |
| Ipamorelin | Growth hormone secretagogue | Works through ghrelin-related signaling rather than GHRH alone | Often discussed with CJC-1295; see our ipamorelin guide. |
| Tesamorelin | GHRH analog | Has a distinct approved-use history and evidence base | Not interchangeable with sermorelin; compare them in our tesamorelin vs CJC-1295 guide. |
Sermorelin versus direct growth hormone replacement
Sermorelin asks the pituitary to respond. HGH bypasses that step by giving growth hormone directly. That difference can matter for monitoring, side effects, and eligibility.
Sermorelin versus CJC-1295 and ipamorelin
CJC-1295 and ipamorelin are often discussed in growth hormone-axis peptide therapy, but they are not the same as sermorelin. If you are comparing them, our sermorelin vs ipamorelin vs tesamorelin vs CJC-1295 article goes deeper.
Sermorelin versus tesamorelin
Tesamorelin is also related to GHRH signaling, but it has its own clinical evidence and regulatory path. A dose chart for one peptide should not be used for another.
What questions should you ask before starting sermorelin?
Before starting sermorelin, ask practical questions about your exact medication, label, monitoring, and side effects. The goal is to remove guesswork before the first dose.
- What is my exact dose in mcg and mg?
- What is the exact concentration of this vial or formulation?
- If this is an injection, how many mL or U-100 syringe units match my label?
- What route should I use: subcutaneous injection, nasal spray, or tablet?
- What time and frequency are written on my prescription label?
- What labs or follow-up should I expect?
- What side effects should prompt a portal message, a same-day call, or urgent care?
- Who should I contact if the pharmacy label and visit instructions do not match?
For sex-specific considerations, Chia has separate guides on sermorelin dosage for men and sermorelin dosage for women. These are still educational resources, not personal dosing instructions.
3-min quiz
Start with a licensed-provider review
If you are considering sermorelin, Chia can help you start with an online eligibility review. Our providers prescribe only when clinically appropriate, and a prescription is not guaranteed. If prescribed, compounded medication is dispensed by a state-licensed 503A pharmacy and shipped to your door.
FAQ
There is no single usual dose that is safe to copy from the internet. Sermorelin dosing depends on your prescription, formulation, concentration, health history, labs, and clinician monitoring. Follow your prescriber’s label and ask the pharmacist if any number is unclear.
Sermorelin may be written in micrograms (mcg) or milligrams (mg). The key conversion is 1 mg equals 1,000 mcg. A decimal-place error can change the medication amount a lot, so verify conversions with the pharmacy.
Syringe units depend on the vial concentration. On a U-100 syringe, 100 units equals 1 mL, but that only tells you liquid volume. It does not tell you the mcg dose unless you know the exact concentration on your label.
A calculator may help you discuss math with a pharmacist, but it should not choose your dose. Entering the wrong concentration, syringe type, or prescribed amount can lead to the wrong volume.
Some protocols discuss nighttime use because growth hormone is released in pulses during sleep. Your own timing and frequency should come from your prescriber and pharmacy label, not from a general chart.
Sermorelin has been studied in growth hormone-axis and body-composition contexts, but it is not a universal weight-loss medication and does not have a standard online weight-loss dose chart. Benefits for compounded formulations are not established by FDA-reviewed outcomes data, and compounded medications are not FDA-approved.
No. Compounded sermorelin is not FDA-approved. It may be prescribed by a licensed clinician when appropriate and prepared by a state-licensed 503A pharmacy, but it is not FDA-reviewed for safety, effectiveness, or manufacturing quality.
Yes, online care can be appropriate when a licensed provider reviews your health history and prescribes only if clinically appropriate. At Chia, sermorelin care is 100% online, with provider-guided dosing and pharmacy dispensing when prescribed.
References
- 1.Munafo A, Nguyen TX, Papasouliotis O, et al. Polyethylene glycol-conjugated growth hormone-releasing hormone is long acting and stimulates GH in healthy young and elderly subjects. European Journal of Endocrinology. 2005.
- 2.Bueno G, Bueno M, Garagorri JM, et al. Priming with GHRH (1-29) NH2: an aid in differential diagnosis between hypothalamic and pituitary deficiencies. The Journal of Pediatric Endocrinology. 1994.
- 3.Lanzi R, Losa M, Mignogna G, et al. The control on growth hormone release by free fatty acids is maintained in acromegaly. The Journal of Clinical Endocrinology and Metabolism. 1999.
- 4.Gómez Sáez JM, Fernández Real JM, Fernández Castañer M, et al. Study on growth hormone and insulin secretion in myotonic dystrophy. The Clinical Investigator. 1994.
- 5.Giustina A, Doga M, Bodini C, et al. Acute effects of cortisone acetate on growth hormone response to growth hormone-releasing hormone in normal adult subjects. Acta Endocrinologica. 1990.
- 6.Looij BJ, Roelfsema F, Frölich M, et al. The interaction of GHRH with TRH in acromegaly: a controlled study. Acta Endocrinologica. 1991.
- 7.Walker RF. Sermorelin: a review of its use in the diagnosis and treatment of children with idiopathic growth hormone deficiency. BioDrugs. 2007.
- 8.ClinicalTrials.gov. Effectiveness of Growth Hormone Releasing Hormone in Reducing Abdominal Fat in People Who Are Obese. NCT00675506. 2026.
- 9.ClinicalTrials.gov. Comparative Validation of the Growth Hormone Releasing Hormone and Arginine Test for the Diagnosis of Adult Growth Hormone Deficiency. NCT01060488. 2026.
- 10.ClinicalTrials.gov. Effect of Short Term Growth Hormone Releasing Hormone in Healthy Men. NCT00850564. 2026.
- 11.Van Cauter E, Plat L. Physiology of growth hormone secretion during sleep. The Journal of Pediatrics. 1996.
About this article
Chia Health Editorial Team — Evidence-reviewed health education
This article is for educational purposes only and is not a substitute for individualized medical advice. Talk to a licensed clinician before starting, stopping, or changing any prescription.
AI tools may assist with research and drafting. Chia's editorial team reviews source use, clarity, treatment information, and safety framing before publication. A clinician is named only after explicit sign-off. Read our editorial standards.
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