📋 Pep IQ is an independent research reference platform. All content is for educational purposes only and does not constitute medical advice. Compounds documented are research chemicals — not approved for human use by the MHRA or FDA. Always consult a qualified physician before considering any compound. Safety guide →
Safety First

Preparation & Safety Guide

Reconstitution maths, sterile technique, and the mistakes that cause real harm — for your first injection or your hundredth.

The full guide

Starts here

02💧
Reconstitution Guide
Turning powder into injectable solution
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03💉
Needles & Syringes
What to use and why
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04📍
Injection Sites
SubQ and IM — every site, fully mapped
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05🎯
Injection Technique
SubQ and IM — step by step
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06✅
Pre-Injection Checklist
Complete every time — no exceptions
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07📦
Storage Guide
Before and after reconstitution
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08⚠️
Common Mistakes
The errors that cause real harm — with solutions
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09🖊️
Pen Click Calculator
Vial mg → BAC water → exact clicks per dose
Open →
01

Mixing Calculator

Pick the line you want to draw — get the exact BAC water to add
Reconstitution Calculator
Step 1 · Peptide in the vial
mg
IU
2
5
10
15
20
30
mg
Step 2 · Your dose
mcg
mg
IU
250mcg
500mcg
1mg
2mg
5mg
mg
Step 3 · Your syringe
What does your syringe say? (printed on the barrel — most are U-100)
U-100
U-60
U-40
ml marks
Barrel size
0.3 ml
0.5 ml
1 ml
Step 4 · Draw line (set for you · tap to adjust)
units
Enter your vial, water and dose above — your draw instruction will appear here.
BAC Water To Add
Add this much BAC water
—
ml
At A Glance
Enter vial, water and dose above.
Save It
Save your worked-out mixes to reuse in the Protocol Tracker — reconstitutions, doses and draw lines, together in one place.
Subscribe to save →
✓ How to use this
  • 1. Read your vial strength off the glass (e.g. 5 mg) — Step 1.
  • 2. Enter your intended dose — Step 2.
  • 3. Pick your syringe, then the clean line you want to pull to — Steps 3–4.
  • 4. Add the BAC water shown above, then pull to your chosen line. That's it.
09

Pen Click Calculator

Vial mg → BAC water → concentration → exact clicks per dose
Auto-inject pens deliver a fixed volume per click — most standard peptide pens use 0.01mL per click (U-100). The click count you need depends on your vial concentration, which depends on how much BAC water you added. This calculator does the maths. Use it every time you set up a new pen or cartridge.
Pen Click Calculator Auto-Inject Pens
Quick Load — Protocol Preset
Total peptide in vial
BAC water added (mL)
mL
Pen click volume (mL)
Or enter custom click vol (mL)
mL
Compounds & Target Doses
Per 1 Click
Clicks Per Dose
clicks
Per Dose (10 clicks)
—
mg/mL
—
mL/dose
—
Total clicks/pen
—
Doses/pen
Clicks → Dose Reference
Clicks Per injection
Reverse lookup — target dose → clicks needed
— clicks
🖊
Pre-mixed cartridge pens
Arrive pre-reconstituted. No mixing required. Dial your clicks and inject. Available for BPC-157, TB-500, GHK-Cu, Sermorelin, and blend vials from UK suppliers.
🔁
Reusable pen bodies
Load with any compatible 3mL cartridge. Reconstitute your own vial using the Mixing Calculator above, load into the cartridge, and use as a pen. GMP Plastic 80-unit pen (ISO 11608) is the most widely used option.
📐
Verify your click volume
Not all pens deliver the same volume per click. Standard U-100 insulin pens deliver 0.01mL (1 unit) per click. Always confirm with your pen's documentation — never assume.
🔒 Members Only
🛠️

Build Your Own Pen

For refillable pens — design your own custom blend, save it to your account, and get the full mixing safety guide showing which compounds should never share an autoinjector.

Your Custom Pen
BPC-15710 mg
TB-50010 mg
GHK-Cu50 mg
⚠️ Mixing Safety Check
✓ All compounds compatible
Stable for 28 days at 2–8°C
pH compatible: 6.5–7.4
Open in My Protocol Tracker → Members £4.99/mo · Save unlimited custom pens to your account
UK Pre-Mixed Pen Sourcing
Pre-mixed pens for BPC-157, TB-500, GHK-Cu, Sermorelin and blend cartridges are available from UK-based research vendors. Order only from suppliers that issue a Certificate of Analysis (COA) per batch — verify HPLC purity ≥98% and GMP-certified manufacturing. A vendor unwilling to provide a COA on request is a vendor to avoid.
Reusable pen body: GMP Plastic 80-unit pen (FDA 510k cleared, ISO 11608-2 compatible).
If this guide helped

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