Literature Protocol Reference
Quantities reported in published studies, with the research model and citation attached. These are records of what the literature reports — not recommendations, not human doses, and not advice.
Retatrutide
Triple GLP-1 / GIP / glucagon receptor agonist studied in metabolic and energy-expenditure research models.
Phase 2 clinical trial (published, adults with obesity)
1 mg to 12 mg per administration
- Frequency reported
- Once weekly
- Study duration
- 48 weeks
Phase 2 clinical trial (published, type 2 diabetes)
0.5 mg to 12 mg per administration
- Frequency reported
- Once weekly
- Study duration
- 36 weeks
Escalation schedule as described in the published protocol
- Weeks 1–4Lowest study arm quantityPublished trials began at the low end of the range and held it for four weeks before any escalation.
- Weeks 5–8First escalation incrementEscalation in the published protocol occurred at four-week intervals, not weekly.
- Weeks 9+Held or escalated to target armTrial arms were fixed targets; escalation stopped once the assigned arm quantity was reached.
Stability as reported
Lyophilised: stable at -20°C for the labelled shelf life; short excursions to 2–8°C are tolerated. Reconstituted: 2–8°C, commonly reported as usable for up to 28–30 days in bacteriostatic water.
Handling
Reconstitute down the vial wall, swirl rather than shake, and protect from light. Avoid repeated freeze–thaw of the reconstituted solution.
These figures describe what researchers used in the cited studies, in the model organism or trial population stated. Novexa Labs compounds are supplied for laboratory research use only and are not for human or animal consumption. Nothing on this page is medical advice or a personalised protocol.
Reconstitution & Multi-Draw Schedule Planner
Plans a study period from numbers you choose: how many draws a vial yields, how long the reconstituted vial lasts against the reported cold-storage window, and how much material remains unused. It performs arithmetic on your inputs — it does not select them for you.
Draws per vial
40
40.00 theoretical
Units per draw
5.0
0.050 mL
Vial lifespan at this frequency
40 days
Reported cold-storage window: ~30 days at 2–8°C
Full study period
40 days
40 draws across 1 vial
Unused material
Approximately 2,500 mcg per vial (25.0%) is not drawn — either a part-draw remainder or material left after the reported cold-storage window closes. Adjusting the water volume or the draw size changes this.
At this frequency the vial would take 40 days to finish, which is longer than the ~30-day window commonly reported for reconstituted peptides held at 2–8°C. Only about 30 draws fall inside that window. Researchers commonly reconstitute a smaller volume, aliquot and freeze at -20°C, or use a smaller vial.
Every figure here is arithmetic on the values you entered, or a description of a published study's structure. This planner does not select a quantity, a frequency or a schedule for any person, and it is not medical advice.
Your Personal Research Companion
Included with every purchaseBuy anything from Novexa Labs and you get a research companion that already knows what is in your order. This is the page it lives on:

Your details, entered once
Weight, age, goal and experience are optional. Fill them in and your companion carries them into every conversation from then on — no repeating yourself.
Your purchases appear automatically
Everything you have ordered is listed with its vial size and storage guidance. Your companion works from the same list, so it always knows which material you actually hold.
The limits are stated up front
Individualised dosing, symptom questions and blood-work interpretation are refused every time — enforced outside the model, not left to its judgement.
Answers use your vial and your numbers
Ask about reconstitution and it works from the strength you own — concentration, draw volume, syringe units and doses per vial — grounded in Novexa's own research library.
Reconstitution Basics
Add water slowly
Run bacteriostatic water down the inside wall of the vial. Never inject the stream directly onto the lyophilised powder.
Swirl, don't shake
Rotate the vial gently until fully dissolved. Agitation can denature the peptide chain.
Store cold
Reconstituted vials belong at 2–8°C and are typically stable for up to 30 days. Unopened lyophilised vials store best frozen.
More water, easier measuring
Adding 2 mL instead of 1 mL doubles the draw volume, which makes small measurements far more accurate.
These tools are laboratory reference aids only. They report what published studies describe and perform arithmetic on values you enter. Novexa Labs products are supplied strictly for research purposes and are not intended for human or animal consumption, and nothing here is medical advice.