How many units of Sermorelin should I draw?

It depends on your vial size, BAC water, and dose. For a 5mg vial with 2mL BAC water, a beginner dose of 200mcg is typically 8 units on a U-100 syringe. Use the calculator above for your exact numbers.

How much BAC water should I add to Sermorelin?

The standard amount is 2mL of bacteriostatic water for a 5mg vial. More water gives a more dilute solution — easier to measure small doses. Less water means fewer injections per vial. Adjust the BAC water slider in the calculator to see how it changes your syringe units.

How long does a Sermorelin vial last?

At a beginner dose of 200mcg daily, a 5mg vial lasts about 25 doses. The calculator shows exact doses per vial for your selected tier.

What syringe should I use for Sermorelin?

Most people use a U-100 insulin syringe (1mL / 100 units). For very small doses, a U-50 or U-30 syringe gives better precision. The calculator adjusts units automatically for whichever syringe you pick.

Sermorelin Dosage Calculator

Growth HormoneInjectionFDA Approved~10-20 min half-life

Sermorelin is the original growth hormone releasing hormone (GHRH) analog with the longest clinical track record of any GH peptide.

Decades of clinical safety dataStimulates natural pulsatile GH releaseFDA-approved (for diagnostic use)Improves sleep quality

Vial Size

BAC Water (mL)

Dosing Level

200mcg · Daily

Custom Dose (mcg) — optional

Syringe Type

8.0 units

100 units (1mL)

Concentration

2,500

mcg/mL

Draw Volume

0.080

Syringe Units

8.0

units

Doses / Vial

doses

Summary: Add 2mL BAC water to your 5mg vial. Draw to 8.0 units on a U-100 syringe for a 200mcg dose. This vial will last 25 doses.

Cycle Planner

Cycle Length (weeks)

Price Per Vial ($) — optional

Subcutaneous. Typical beginner frequency: daily.

Sermorelin Pharmacokinetics

Pharmacokinetics — Active Dose Over Time

t½ = ~10-20 min

After 1 half-life (15m): 50% remainsAfter 2 half-lives (30m): 25% remainsAfter 3 half-lives (45m): 12.5% remains

At a 300mcg dose: 50% = 150mcg remaining after 15m. Recommended frequency: Daily.

Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.

Sermorelin Dosing Protocol

Level	Dose / Injection	Frequency
Beginner	200mcg	Daily
Moderate	300mcg	Daily
Aggressive	500mcg	Daily

Note: Original GH-releasing peptide with decades of clinical data. FDA-approved for GH deficiency diagnosis. Best dosed before bed on empty stomach. Conservative and well-studied.

About Sermorelin

Sermorelin is the original growth hormone releasing hormone (GHRH) analog with the longest clinical track record of any GH peptide. It contains the first 29 amino acids of natural GHRH — the biologically active portion. FDA-approved for diagnosing GH deficiency, it stimulates natural, pulsatile GH release from the pituitary. It's the most conservative choice for GH optimization.

View full Sermorelinguide →Add to schedule →