Metabolic Trifecta Reconstitution: mg-to-mL Concentration Math for a Three-Vial Kit

For laboratory and research use only. Not for human consumption.

The Metabolic Trifecta pairs three separate vials — Retatrutide, NAD+, and MOTS-c — into a single research kit rather than one mixed vial. As with any multi-vial kit, that means three independent reconstitution calculations, not one shared ratio. This guide walks through the arithmetic for each vial and how to keep the three concentrations from getting crossed in a research log.

Why a Three-Vial Kit Needs Three Separate Calculations

Our explainer on the Metabolic Trifecta covers the research rationale for combining these three compounds. From a reconstitution standpoint, the important point is that each vial ships with its own labeled mass and is reconstituted with its own diluent volume, producing its own concentration. Nothing about reconstituting the Retatrutide vial affects the NAD+ or MOTS-c vials, and none of the three concentrations can be inferred from another.

Vial 1: Retatrutide

The Retatrutide 20mg vial in the kit follows the standard single-compound formula:

Concentration (mg/mL) = 20 mg ÷ diluent volume (mL)

Reconstituting with 2 mL of bacteriostatic water yields a 10 mg/mL stock; 1 mL yields 20 mg/mL. See our dedicated Retatrutide reconstitution walkthrough for a full worked example and syringe-unit conversion table.

Vial 2: NAD+

The NAD+ vial is supplied at 500 mg per vial — a larger labeled mass than the kit's other two vials, so the same formula produces a much higher concentration at an equivalent diluent volume:

Concentration (mg/mL) = 500 mg ÷ diluent volume (mL)

At 5 mL of diluent, that is 100 mg/mL; at 10 mL, 50 mg/mL. Because NAD+ (MW 663.43 Da) is a much larger labeled mass per vial than either Retatrutide or MOTS-c, researchers moving between vials in this kit should not assume a diluent volume that works well for one vial will produce a comparable concentration in another — the arithmetic is the same formula, but the inputs differ substantially. Background on the coenzyme itself is in our NAD+ cellular research overview.

Vial 3: MOTS-c

The MOTS-c vial is again an independent single-compound calculation:

Concentration (mg/mL) = 10 mg ÷ diluent volume (mL)

Reconstituting with 1 mL yields 10 mg/mL; 2 mL yields 5 mg/mL — the same numeric pattern as the Retatrutide vial, but for a different compound with a different molecular weight (MOTS-c is a 16-amino-acid mitochondrial-derived peptide). A molar-concentration conversion for MOTS-c will not match the molar concentration of a Retatrutide vial reconstituted to the same mg/mL, since the two peptides have different molecular weights. See what the literature has measured in our MOTS-c metabolic research summary.

Keeping the Three Calculations Separate

The most common error in a multi-vial kit like this one is applying one vial's concentration figure to a different vial by habit — for example, assuming the Retatrutide and MOTS-c vials both ended up at the same mg/mL because they were reconstituted back-to-back with the same diluent volume, without accounting for the very different NAD+ vial sitting between them. Labeling each reconstituted vial immediately with its own mass, diluent volume, resulting concentration, and preparation date avoids this. A simple per-vial table in a lab notebook, filled in at the moment of reconstitution rather than from memory afterward, is the most reliable safeguard.

Storage Across Three Vials

All three vials in the kit are supplied lyophilized and specified for frozen storage (≤ -20°C) prior to reconstitution, with the Retatrutide vial additionally requiring cold-chain shipping. Once reconstituted, all three should be kept refrigerated, protected from light, and labeled individually — three reconstituted vials stored together without separate labels is the fastest way to lose track of which concentration belongs to which compound. Researchers can cross-check math for any single vial with our peptide reconstitution calculator walkthrough.

Sequencing Reconstitution When Working Through All Three Vials

There is no required order for reconstituting the three vials, but working through them one at a time — reconstituting, calculating, and labeling a single vial fully before moving to the next — reduces the chance of transposing a calculation between compounds, particularly given how different the NAD+ mass figure is from the other two. A researcher who reconstitutes all three vials first and calculates concentrations afterward from memory is far more likely to assign the wrong mg/mL figure to the wrong vial than one who closes out each vial's math before opening the next.

Frequently Asked Questions

Are all three vials in the Metabolic Trifecta reconstituted with the same diluent volume?

Not necessarily — each vial's diluent volume is chosen independently based on the target concentration for that specific compound. Given how much larger the NAD+ labeled mass is, using the same volume across all three is unlikely to be the right choice for every vial.

Does reconstituting one vial in the kit affect the concentration of the others?

No. Because the three vials are physically separate, reconstituting one has no effect on the mass or concentration of the others.

Why is the NAD+ vial's labeled mass so much higher than the Retatrutide or MOTS-c vials?

The vials are labeled independently by compound, and NAD+ is supplied at 500 mg per vial versus 20 mg and 10 mg for the other two. A higher labeled mass simply means more total mass is available to divide across whatever diluent volume is chosen.

Can the three vials' mg/mL concentrations be directly compared to each other?

The mg/mL figures are comparable as mass-per-volume numbers, but because Retatrutide, NAD+, and MOTS-c have different molecular weights, equal mg/mL concentrations do not represent equal molar concentrations across the three compounds.

What's the best way to avoid mixing up concentrations across three vials?

Label each vial immediately after reconstitution with its mass, diluent volume, resulting concentration, and date, rather than relying on vial position or memory. A short per-vial log table, filled in at the moment of preparation, is the standard safeguard.

Does the order in which the three vials are reconstituted matter?

No fixed order is required, but completing the reconstitution, calculation, and labeling for one vial before starting the next reduces the risk of assigning one vial's concentration figure to a different vial.

Reviewed by the Optimized Aminos research team — last updated August 19, 2026.

The full kit is available as the Metabolic Trifecta research bundle, priced as a set rather than three separate purchases.

For laboratory and research use only. Not for human consumption.

Run the numbers for your own vial

The reconstitution calculator takes a labeled vial mass and a solvent volume and returns the resulting concentration in mg/mL, along with the aliquot volume in microlitres for any target mass — the same arithmetic worked through above, without the decimal-place risk of doing it from memory. Bacteriostatic water (10 mL) is the diluent used in these worked examples, and every compound referenced here is third-party tested with a published COA.