Melanotan 2 (MT2) Calculator: Dosage & Reconstitution
Melanotan 2 (MT2) Calculator: Dosage & Reconstitution Melanotan 2 (MT2) Calculator For research use only Melanotan II (MT2) dosage calculator for reconstitution — enter how much BAC water, vial size and target dose to calculate mg/mL concentration to get how m
Melanotan 2 (MT2) Calculator: Dosage & Reconstitution
Melanotan 2 (MT2) Calculator For research use only
Melanotan II (MT2) dosage calculator for reconstitution — enter how much BAC water, vial size and target dose to calculate mg/mL concentration to get how much to draw on U-100 syringe units. MT II calculator works for: 10mg and other vials — then generate a free custom PDF peptide dosing chart - based on your inputs.
24h Free dosing schedule → 1. Melanotan 2 selected · Tap to change 2. 3. 4. MCG MG PEPTIDE COMPANY MELANOTAN 2 RESEARCH PEPTIDE FOR LABORATORY USE ONLY Calculate How to Use the Melanotan 2 Calculator Select Your Compound 2. Enter Vial Size (mg)
This is printed on your vial's label — the total amount of peptide powder.
3. Enter BAC Water (mL) 4. Enter Desired Dose See example calculation →
For research purposes only.
What is Melanotan 2? ☀️
Melanocortin Agonist
Activates MC1R on melanocytes to increase eumelanin production and UV-protective skin pigmentation
🧬
α-MSH Analogue
Synthetic cyclic heptapeptide with approximately 1,000× greater receptor affinity than native α-MSH
🔬
Multi-Receptor Activity
Binds MC1R, MC3R, MC4R, and MC5R receptors — affecting pigmentation, appetite regulation, and libido
Turn Your Melanotan 2 Calculator Result Into a Free Dosing Schedule
Use your calculator inputs to create a simple plan you can review, download, print, or add to your calendar, plus a free peptide guide.
1 Run your calculation 2 Answer one quick question 3 Download your schedule PDF
Next step
Run your calculation Select Melanotan 2 mg
INCLUDED WITH YOUR FREE SCHEDULE
BONUS GUIDE What Your Free Melanotan 2 Schedule Includes
Your schedule organizes your calculator result into clear dose amounts, timing, vial estimates, and comparison details so it is easier to review and plan.
Includes: syringe units vial runout estimate calendar option PDF plan protocol comparison free peptide guide Melanotan 2 10mg dosage calculator example
Worked example: a 10 mg Melanotan 2 vial reconstituted with 1 mL of bacteriostatic water, showing the syringe units for a 500 mcg dose.
Example inputs
1. Melanotan 2
Choose the peptide/compound to calculate.
2. 10 mg
Total amount of peptide in your vial (from the label).
3. 1 mL
How much bacteriostatic water you mix in.
4. 500 mcg
The dose you want per injection.
Click Here to Start
What you get
= 5.0 units (0.050 mL draw)
Mixing 10 mg with 1 mL of BAC water means a full 1 mL syringe — all 100 tick marks — holds 10.00 mg (10,000 mcg). So a 500 mcg dose is just part of that: 500 mcg ÷ 10,000 mcg/mL = 0.050 mL, which is the 5.0 unit mark on a U-100 insulin syringe for Melanotan 2.
0 20 40 60 80 100 5.0 units
U-100 insulin syringe — 1 mL = 100 units
See the step-by-step reconstitution guide View Melanotan 2 dosing data How to Safely Reconstitute Your Research Melanotan 2
Use the Melanotan 2 peptide calculator to find your BAC water amount, then follow these four steps to reconstitute your vial more carefully and consistently.
1 Sanitize
Wipe the vial stopper and injection site with an alcohol swab. Allow to air-dry for 10 seconds before proceeding.
2 Load Needle
Draw your calculated volume of bacteriostatic water into a sterile syringe. Insert the needle through the vial stopper at a slight angle.
3 Add Water to the Vial
Slowly dispense the water down the inside wall of the vial — never spray directly onto the powder. This preserves peptide integrity.
4 Mix Gently
Swirl the vial gently until the powder is fully dissolved. Do not shake — shaking can denature the peptide and reduce potency.
Read the full reconstitution guide → Calculate your dose → Melanotan 2 Storage & Half-Life
Once your research peptide is mixed, proper storage helps it stay more stable and lowers the risk of breakdown or contamination. Use these simple storage basics after reconstitution.
Refrigerate Right Away
Store the mixed vial in the fridge at 2–8°C (36–46°F) as soon as possible. For most everyday research use, this is the standard storage method.
BAC Water Helps
When possible, use bacteriostatic water. It contains a preservative that can help slow bacterial growth, which makes multi-use fridge storage more practical.
Freeze Small Portions for Longer Storage
If you need to store it longer, split the mixed peptide into small sterile vials and freeze those. Thaw only what you need, and do not refreeze once thawed.
Avoid These Common Mistakes
Do not keep freezing and thawing the same vial. Keep it away from heat, light, and room temperature for long periods, since those can shorten shelf life.
Typical storage time can vary by peptide. Many mixed peptides are kept in the fridge for about 3–8 weeks, while frozen aliquots may last longer.
Melanotan II Half Life Calculator & Buildup in Your System Run a calculation now
Melanotan II has a half-life of about ~33 hours — that's how long it takes for half of an injected dose to clear from your system. This Melanotan II half-life chart shows what that means in practice: when you re-dose before the previous dose is gone, each new dose lands on top of the leftover, and the level creeps up until it reaches steady state — the plateau where what you inject roughly equals what you clear. Each 💉 marks an injection. The blue line is roughly how much Melanotan II is in your system — it jumps up at every injection and decays in between, and over the first few weeks each new peak lands a little higher than the last. That rising plateau is steady state.
Check the half-life of: Melanotan II Compound Melanotan II See Melanotan II dosing data → Half-life ~33 hours Typical cadence daily during titration Steady state ~1 week
Long enough half-life that daily dosing produces meaningful buildup over the first week. This is part of why side effects (nausea, flushing) are typically worst during the loading phase, then settle.
Steady-state peak 0 2 4 6 8 10 Days of daily during titration dosing 💉 💉 💉 💉 💉 💉 💉 💉 💉 💉 Melanotan II half-life ~33 hours. Each needle icon marks an injection. With daily during titration dosing, trough level rises from 0.60× after the first dose to approximately 1.5× at steady state, and peak level plateaus at about 153% higher than a single dose after about 1 week. 💉 Injection date Amount in your system Steady-state peak
Source: Dorr et al. Life Sci 1996 (Melanotan II PK). Educational illustration; individual pharmacokinetics vary.
A worked example: Melanotan II (~33 hours half-life, daily during titration) Run a calculation Common Melanotan 2 & BAC Water Vial Sizes
Most research peptides — including tirzepatide, semaglutide, retatrutide, and BPC-157 — arrive in a standard 3 mL vial. If yours looks larger, it's usually a high-mg compound or your BAC water bottle.
2 mL
Uncommon
Occasionally used for low-dose or specialty compounds. If you received one of these, double-check your order — it's not the norm.
3 mL most common
The Standard
Nearly every peptide you'll ever order ships in a 3 mL vial. When in doubt, assume this is your size.
5 mL
Less Common
Usually indicates a mid-range dosing convenience pack or a slightly higher mg load. Still a peptide vial.
10 mL
Uncommon for Standard Peptides
Typically signals a high-mg compound — sometimes Glutathione. Also common for BAC water vials.
15 mL
Rare as a Peptide Vial
Almost always a BAC water bottle or a high-dose compound with a large reconstitution volume.
30 mL
This Is Your BAC Water
If your vial is this size, it is almost certainly your diluent — not your peptide. More than likely it's plastic.
MT2 BAC Water Calculator Syringe Guide
Any MT2 vial — whether 5 mg, 10 mg, 15 mg, or larger — can be reconstituted with any syringe size. For example, to mix 2 mL of BAC water into a vial, you could use 2 full draws with a 1 mL syringe, 4 full draws with a 0.5 mL syringe, or about 6.7 full draws with a 0.3 mL syringe. Compare barrel sizes, switch needle gauges, and drag the slider to match your exact dose.
Your peptide calculator result can be measured on a U-100 insulin syringe. A 0.3 mL barrel holds 30 units, a 0.5 mL barrel holds 50 units, and a 1.0 mL barrel holds 100 units. For the clearest markings, use the smallest barrel that fits your full dose. Needle gauge only changes needle thickness — it does not change your unit count.
Barrel: 0.3mL 0.5mL 1.0mL Gauge: 29G 30G 31G 0 20 40 60 80 100 10.0 units ‹ drag › MT2 Reconstitution Dose Range
The distribution and frequency charts below aggregate anonymized dosing submissions from researchers using this calculator. They reveal how the community approaches MT2 loading and maintenance, helping new researchers calibrate their protocols against established data patterns. Use the distribution chart to identify the most statistically common dose range, and the frequency chart to understand how dosing intervals shift from loading to maintenance phases over time.
Loading dosing charts…
MT2 Injection Methods Pick your route below, then jump back to the calculator to size the exact draw. SubQ near the abdomen is the overwhelming favorite for its ease and reproducible absorption. Calculate my MT2 dose Subcutaneous (SubQ)
Preferred route for MT2. Inject into abdominal fat or thigh adipose tissue at 45 degrees with an insulin syringe.
Easy Popularity 90% Abdomen Thigh Upper Arm Intramuscular (IM)
Less common for MT2. May increase injection-site discomfort. Used occasionally in experimental protocols.
Moderate Popularity 10% Deltoid Quadriceps Subcutaneous injection near the abdomen is recommended for MT2 research due to ease of administration and reproducible absorption. Melanotan 2 Search Trends Steady, growing search interest shows MT2 research is mainstream — when you're ready, size your own dose in the calculator. Sustained Community Interest
MT2 search volume has remained stable with peaks around summer months when UV exposure and pigmentation protocols are most relevant. Research interest has expanded beyond bodybuilding communities into broader biohacking circles.
View Live Data on Google Trends Calculate my MT2 dose MT2 Safety Considerations Know the safe starting dose and side-effect profile first, then calculate an exact, low starting draw with confidence.
100–250mcg
Starting Dose
Low starting doses minimize GI effects from MC4R activation.
Nausea
Most Reported Side Effect
Typically dose-dependent and resolves with gradual titration.
🔬 Research Chemical
No FDA approval. Use limited to laboratory and preclinical research.
The primary mechanism of MT2 side effects is MC4R agonism in the hypothalamus and brainstem, which triggers nausea and anorexia at higher doses. Flushing, spontaneous erections (MC4R in spinal cord), and facial flushing are also reported. Side effects are typically dose-dependent and mitigated by starting at 100 mcg and titrating slowly.
View PubMed Studies Start low, then calculate my draw Research use only. MT2 is not approved for human consumption. Human safety data is limited. How Melanotan 2 Works: Melanocortin Receptor Agonist Mechanism
Understand the mechanism, then enter your vial size and target dose to get exact draw volumes.
Calculate my MT2 dose
Melanotan 2 (MT-II) is a synthetic cyclic heptapeptide analogue of alpha-melanocyte-stimulating hormone (α-MSH), engineered at the University of Arizona to have greater potency, metabolic stability, and receptor binding affinity compared to the endogenous peptide. It is a non-selective melanocortin receptor agonist (MC1R, MC3R, MC4R, MC5R) with approximately 1,000-fold greater potency than native α-MSH.
Skin Pigmentation (MC1R)
Activates MC1R on melanocytes, stimulating eumelanin synthesis via cAMP/CREB pathway. Increases UV-absorbing dark pigmentation without requiring UV exposure.
Sexual Function (MC4R)
MC4R agonism in the hypothalamus and spinal cord mediates the pro-erectile and libido-enhancing effects studied in research settings. Bremelanotide (PT-141) is a related compound developed from this mechanism.
Appetite Regulation (MC3R/MC4R)
Central melanocortin pathway activation decreases food intake and increases energy expenditure. MC4R in the arcuate nucleus reduces appetite — a mechanism also responsible for dose-dependent nausea at higher MT2 doses.
The reconstitution calculation for MT2 requires particular care because common vial sizes (10 mg, 20 mg) and the low dose range (100–1,000 mcg) mean concentration errors are amplified. Use this calculator to compute exact draw volumes and eliminate guesswork in your research protocol.
Melanotan 2 Side Effects
Every Melanotan 2 side effect is determined by exactly four variables. Experienced researchers manipulate these four levers — to minimize risk while pursuing their objective.
T1 · TOOL
Melanotan 2 is the T1 variable — the specific compound shapes the entire risk profile. Different peptides carry different mechanisms, receptor affinities, and safety histories. Choosing the right tool is the first lever.
T2 · TOTAL
The dose amount. Any compound at higher amounts carries more risk than lower doses. Precise dosing — not estimates — is how you control this variable.
T3 · TIMELINE
Duration of use. One day of Melanotan 2 vs. ten years of Melanotan 2 creates a very different cumulative risk profile. This holds for every compound — cycle length, frequency, and compound rotation are the controls.
T4 · TARGET
Your individual idiosyncratic response. Two people, same compound, same dose, same timeline — different results. Mapping your personal response is an ongoing process.
Prudent first-dose rule: Identify the marketplace consensus dose for Melanotan 2, then start at 50% of that amount to isolate your personal Target response before committing to a full protocol.
Read the full guide How We Protect, Standardize & Track Melanotan 2 Plans Anonymous Plan Inputs
When you use this free Melanotan 2 reconstitution calculator online, your privacy is protected at the database level. We do not store IP addresses, names, or accounts. Our system uses a temporary, stateless session token to prevent spam. We only save the raw math you enter (vial size, BAC water, and target dose). It is a completely anonymous drop-box.
Live Updates
The analytics you see on this page are not static estimates. Every calculation is securely routed to our live PostgreSQL database. We have processed thousands of Melanotan 2 calculations this way, allowing us to map real-time dosing trends across the peptide research community.
Melanotan 2 Dose Normalization
To make the charts readable, our algorithm groups micro-variations. If one researcher targets a lower dose and another targets a slightly higher dose, the system normalizes them into the same primary baseline (within an 8% variance). This prevents the charts from becoming cluttered and reveals the true, intended dosing protocols.
Real-World Melanotan 2 Signals
Clinical trials establish safety baselines, but independent research often looks different. By openly sharing the exact protocols thousands of researchers are actively using, we remove the guesswork. This is not medical advice—it is transparent, crowd-sourced intelligence to help verify your own math.
MT2 Dosing Protocol: Loading Phase vs. Maintenance Phase
Pick a loading or maintenance dose below, then convert it into an exact draw volume with the calculator.
Calculate my MT2 dose Why Start Low with MT2?
MT2 loading protocols always start with a minimal nadir dose (100–250 mcg) to assess individual sensitivity to nausea and flushing — both direct effects of MC4R agonism. Most researchers inject in the evening so any nausea occurs during sleep.
The Maintenance Phase
Once target pigmentation is achieved (typically 4–6 weeks), researchers shift to maintenance: 100–500 mcg every 2–7 days. Many find every 5–7 days sufficient to sustain results without re-tanning UV exposure.
📊 Community data shows most researchers taper to 250 mcg every 4–5 days in maintenance.
Standard MT2 Protocol Chart Typical loading-to-maintenance progression. Always combine with UV exposure. Phase Dose Range Frequency Nadir / Test 100–250 mcg Single dose Loading 500–1,000 mcg Daily (+ UV) Maintenance 100–500 mcg Every 2–7 days
Community insight: 68% of researchers complete their loading phase within 4 weeks using 500–750 mcg daily.
Verified Melanotan 2 Mixing Calculator
This calculator utilizes our standard pharmacological dilution algorithm, optimized for U-100 syringes and zero-displacement limits.
View Math & Methodology
Community data powering this calculator is collected anonymously through voluntary calculator submissions. No personally identifiable information is stored. All dosing statistics are descriptive only and represent research community patterns, not recommendations. Sample sizes and confidence intervals are displayed within the distribution chart. Data is updated continuously as new submissions are received from the WPA research community.
This calculator and all information are for educational and research purposes only. Melanotan 2 is not approved for human use. All products referenced are sold for laboratory and research use only. Always follow applicable research protocols and local regulations. Related Calculators Weight Loss Tirzepatide Calculator Try Calculator Weight Loss Semaglutide Calculator Try Calculator Recovery Peptides BPC-157 Calculator Try Calculator Melanotan II Reconstitution & Dosing FAQ How many units of MT2 should you take? How to reconstitute a 10mg Melanotan 2 (MT2) vial? How much BAC water for a 10mg Melanotan 2 (MT2) vial? Why does MT2 cause nausea at higher doses? How long does Melanotan 2 take to show results? How is the MT2 confidence range calculated? What is the half-life of Melanotan II, and how long does it stay in your system?