Getting your peptide dose wrong is the most common reason researchers in Bali report disappointing results. Either the dose was too low and nothing happened, or it was too high and the side effects overshadowed the protocol. This guide covers everything: how to reconstitute correctly, how to calculate your exact dose, the most common mistakes, and how to use the BioRelix Peptide Dosage Calculator to get the right number every time.

Step 1 — Reconstitution

Before you can dose anything, your lyophilised (freeze-dried) peptide powder needs to be dissolved in bacteriostatic water. This process is called reconstitution.

What You Need

  • Your peptide vial (lyophilised powder)
  • Bacteriostatic water (3ml or 10ml vial)
  • A 1ml insulin syringe (29–31G, 8mm)
  • Two alcohol swabs

The Reconstitution Process

  1. Wipe both vial tops with separate alcohol swabs and let dry fully
  2. Draw your chosen volume of bacteriostatic water into the syringe
  3. Insert the needle into the peptide vial at an angle — aim for the glass wall, not directly at the powder
  4. Let the water run slowly down the side of the vial. Never inject forcefully — this degrades the peptide
  5. Gently swirl (do not shake or vortex) until fully dissolved — the solution should run clear
  6. Label the vial with the date reconstituted and the volume of BAC water added

How much BAC water to add? For most 10mg vials, 2ml is the standard. This gives a concentration of 5mg/ml (5,000mcg/ml) — a convenient reference point that keeps dose volumes in a practical range on a U-100 syringe.

Step 2 — Calculating Your Dose

This is where most people go wrong. The maths is simple once you understand it, but mistakes here mean either wasting your vial or experiencing unwanted effects.

The Formula

Three numbers you need:

  • Peptide amount (mg) — on the vial label
  • BAC water added (ml) — what you just added
  • Desired dose (mcg) — from your research protocol

The calculation:

  1. Convert peptide to mcg: mg × 1,000 = mcg total
  2. Calculate concentration: mcg ÷ ml water = mcg/ml
  3. Calculate draw volume: desired dose ÷ concentration = ml to draw
  4. Convert to syringe units: ml × 100 = units on a U-100 syringe

Worked Example — BPC-157 10mg, 2ml BAC water, 250mcg dose

StepCalculationResult
Total mcg10mg × 1,00010,000 mcg
Concentration10,000 mcg ÷ 2ml5,000 mcg/ml
Draw volume250 mcg ÷ 5,000 mcg/ml0.05 ml
Syringe units0.05 ml × 1005 units

So for a 250mcg dose of BPC-157 from a 10mg vial reconstituted with 2ml BAC water — draw to the 5-unit line on your syringe.

Skip the Maths — Use the Calculator

Enter your vial size, BAC water volume, and target dose. Get instant syringe units with a visual diagram.

Open Peptide Dosage Calculator →

Common Dosing Errors

Under-Dosing — The Most Common Mistake

Under-dosing is far more common than over-dosing and is the primary reason people conclude "peptides don't work." If your dose doesn't reach the minimum effective threshold in tissue, you will see no research outcome — regardless of the quality of the compound.

How under-dosing happens:

  • Confusing mg with mcg — a 10mg vial contains 10,000mcg, not 10mcg
  • Adding too much BAC water (e.g. 10ml instead of 2ml) without adjusting the draw volume — this dilutes the concentration by 5×, meaning you'd need to draw 5× more volume to get the same dose
  • Miscounting syringe units — especially on a 0.3ml syringe where each unit is very small
  • Starting too low and never titrating up — some researchers stay at sub-therapeutic doses indefinitely

Signs you may be under-dosing: No noticeable effect after 2–4 weeks of consistent use, no injection site reaction (for repair peptides), no appetite suppression (for GLP-1 agonists). If you experience nothing at all, recalculate your dose using the calculator.

Over-Dosing — Less Common, More Noticeable

Over-dosing is harder to do accidentally but more immediately obvious. The consequences vary significantly by compound class.

Compound ClassOver-dose EffectsNotes
GLP-1 agonists (Retatrutide, Tirzepatide, Semaglutide)Nausea, vomiting, fatigue, gastroparesisAlways titrate up slowly — start at 0.5–1mg, not full dose
GHRH/GHS (CJC-1295, Ipamorelin, Tesamorelin)Water retention, tingling hands/feet, lethargyEvening dosing reduces daytime side effects
Repair peptides (BPC-157, TB-500)Generally well tolerated — nausea at very high dosesWide therapeutic window
Melanotan IINausea, facial flushing, spontaneous erectionsHighly dose-sensitive — start at 100–200mcg
Selank / SemaxDrowsiness, mild headacheIntranasal administration has different bioavailability
EpitalonVery well tolerated — no significant over-dose effects reportedWide dosing window

GLP-1 titration is critical. Retatrutide, Tirzepatide, and Semaglutide should never be started at the full research dose. Begin at 0.5mg and increase by 0.5mg every 1–2 weeks. Jumping straight to 2mg+ on your first injection is the most common cause of severe nausea in first-time users.

Tips & Tricks for Accurate Dosing

1. Write It Down

Keep a dosing log — date, compound, units drawn, any notes. In Bali's heat it's easy to lose track of how many days you've been on a protocol. A simple note in your phone is enough.

2. Label Every Vial Immediately After Reconstitution

Write directly on the vial with a marker: compound name, date reconstituted, BAC water volume added. In a shared accommodation or a cluttered fridge, unlabelled vials get mixed up. Once reconstituted, peptides look identical.

3. Add More BAC Water if Your Draw Volume is Too Small

If your calculated dose is only 1–2 units on the syringe, it's very hard to measure accurately. Add more bacteriostatic water to increase the volume. Example: adding 4ml instead of 2ml to a 10mg vial halves the concentration but doubles the draw volume — now you're drawing 10 units instead of 5, which is far more precise.

4. Use a 0.5ml Syringe for Low-Dose Protocols

If you're drawing less than 20 units, a 0.5ml syringe gives you better resolution than a 1.0ml syringe. Each unit marking is larger and easier to read. The dosage calculator lets you switch between syringe sizes to see the difference.

5. Let the Alcohol Dry Before Injecting

Injecting through wet alcohol stings and introduces alcohol into the injection site. After wiping with an alcohol swab, wait a full 10–15 seconds before injecting. It makes a significant difference in comfort.

6. Rotate Injection Sites

Daily or twice-daily injection at the same site causes subcutaneous nodules and lipodystrophy over time. Rotate between lower abdomen left, lower abdomen right, left thigh, right thigh. Keeping a log makes rotation easy to track.

7. Store Correctly in Bali's Heat

Reconstituted peptides must be refrigerated (2–8°C). Bali's ambient temperature of 28–32°C will degrade a reconstituted peptide vial left on the counter within hours. Do not leave vials outside the fridge longer than needed. Lyophilised (unreconstituted) peptides are more stable but should still be kept cool.

8. Don't Freeze Reconstituted Peptides

Freezing a reconstituted peptide vial causes ice crystal formation that physically damages the peptide structure. Freeze only lyophilised powder. Once water is added — refrigerate only.

Dosage Reference for BioRelix Peptides

PeptideResearch Dose RangeFrequencyNotes
Retatrutide0.5–4mgWeeklyTitrate up slowly — start 0.5mg
Tirzepatide2.5–7.5mgWeeklyTitrate up from 2.5mg
Semaglutide0.25–2.4mgWeeklyStandard titration protocol
BPC-157250–500mcg1–2× dailyWide therapeutic window
TB-5002.5–5mg (loading) / 1mg (maintenance)WeeklyLoading phase 4–6 weeks
Ipamorelin200–300mcg1–3× dailyBest dosed before sleep
CJC-1295 No DAC100–200mcg3× dailyStack with Ipamorelin
Tesamorelin1–2mgDailyConsistent morning dosing
Epitalon5–10mgDaily × 10–20 daysCycled protocol
Selank250mcg1–3× dailyIntranasal or subcutaneous
Semax300–600mcg1–2× dailyCognitive protocols
Melanotan II100–500mcgDaily (loading) / 2–3× week (maint.)Highly dose-sensitive
GHK-Cu1–2mgDailySubcutaneous or topical
MOTS-c5–10mg2–3× weeklyMorning before activity

Use the calculator for any of the above. Plug in your vial size, BAC water volume, and target dose — the Peptide Dosage Calculator shows you exactly how many units to draw, with a visual syringe diagram.

Dosing in Bali — Practical Considerations

The Heat Problem

Bali's climate accelerates peptide degradation. A reconstituted vial left at 30°C loses potency significantly faster than one kept at 4°C. If your villa fridge runs warm (some do — check with a thermometer), consider a portable insulin cooler. Every BioRelix order ships in insulated cold-chain packaging precisely because of this.

Travelling Between Bali Areas

If you're moving between Canggu, Ubud, Seminyak, or Uluwatu, keep reconstituted vials in a small portable cooler or insulated bag with an ice pack. A 30-minute tuk-tuk ride in direct sun can expose your vials to 40°C+ temperatures.

Missed Doses

For weekly peptides (GLP-1 agonists), if you miss a dose by 1–2 days, inject as soon as you remember and resume your normal schedule. Do not double-dose to compensate. For daily peptides (BPC-157, Selank), a missed day has minimal impact — just continue the next day.

Frequently Asked Questions

How do I calculate my peptide dose in units?

Divide your desired dose (mcg) by the concentration (mcg/ml), then multiply by 100 to get units on a U-100 insulin syringe. Or use the BioRelix Peptide Dosage Calculator for instant results.

What happens if I under-dose a peptide?

Under-dosing means the compound does not reach an effective threshold in tissue. You will experience little to no effect and waste the vial. Most peptides have a minimum effective dose below which research outcomes are not observable.

What happens if I over-dose a peptide?

Over-dosing varies by compound. GLP-1 agonists at excessive doses cause nausea, vomiting, and gastroparesis. Always start at the lower end of the research dose range and titrate up gradually.

How much bacteriostatic water should I add to my vial?

For most peptides, 1–2ml of bacteriostatic water is standard. For a 10mg vial, 2ml gives a concentration of 5mg/ml (5,000mcg/ml) — a common reference point that keeps dose volumes easy to measure.

Can I mix two peptides in the same syringe?

Some combinations are commonly co-administered (e.g. BPC-157 + TB-500, CJC-1295 + Ipamorelin). Reconstitute each separately in its own vial, then draw both into the same syringe at injection time. Never reconstitute two peptides together in one vial.