Can I use regular sterile water instead of bacteriostatic water?

Bacteriostatic water is strongly preferred because the benzyl alcohol it contains inhibits bacterial growth, keeping your solution safe over multiple uses. Plain sterile water lacks this protection and is generally only suitable for single-use situations. For research purposes, BAC water is the standard choice for reconstituting peptide powders.

How do I know how much BAC water to add to my vial?

The amount depends on the concentration you want to achieve. Use the calculator on this site — just enter the total milligrams in your vial and your desired concentration, and it will tell you exactly how many milliliters of BAC water to add. Getting this number right makes every future measurement accurate and consistent.

What if the powder doesn't fully dissolve after swirling?

Keep swirling gently for another minute or two. Some powders take a little longer to go fully into solution, especially if the vial is still slightly cool. If the solution remains cloudy after several minutes of gentle swirling, something may be off with your technique or materials. A clear solution is the goal before proceeding.

How long does reconstituted NAD+ stay good in the fridge?

When stored properly in a refrigerator away from light, reconstituted solutions are generally considered stable for several weeks. Always label your vial with the reconstitution date so you can track freshness. Avoid freezing the mixed solution, as repeated freeze-thaw cycles can degrade the compound over time.

How to Reconstitute NAD+: Step-by-Step Guide

Don't Be Intimidated — It's Simpler Than You Think

Opening a vial of lyophilized (freeze-dried) powder for the first time can feel a little daunting. All that precise terminology, those tiny vials. Take a breath. Reconstituting NAD+ is really just dissolving a powder in a special sterile water. Think of it like making a very careful, very small cup of instant coffee.

This guide walks you through every step in plain English. No chemistry degree required.

What You'll Need Before You Start

Your NAD+ vial — the one with the white or off-white powder inside
Bacteriostatic water (BAC water) — this is sterile water with a tiny amount of benzyl alcohol added to keep bacteria from growing. Do not use plain tap water or saline.
A 1 mL or 3 mL syringe with a fine needle (typically 27–29 gauge)
Alcohol swabs — for wiping the rubber stoppers on both vials
A clean, flat surface — and clean hands

Step 1: Let the Vial Warm Up

Take your NAD+ vial out of the refrigerator and let it sit at room temperature for about 15–20 minutes. Cold glass plus room-temperature liquid can cause minor temperature shock to the powder. Letting it warm up gently is a small but smart habit. Don't rush this part — patience here pays off later.

Step 2: Wipe Everything Down

Use a fresh alcohol swab to clean the rubber stopper on your NAD+ vial. Then swab the stopper on your BAC water vial too. Let them air-dry for a few seconds. This simple step keeps things clean and is worth doing every single time.

Step 3: Draw Your BAC Water

Here's where the calculator becomes your best friend. The amount of BAC water you add determines the final concentration of your solution. Get this number right, and every future measurement becomes straightforward. Get it wrong, and your doses will be off.

Use the calculator to figure out exactly how many milliliters of BAC water to draw for your desired concentration. Once you have that number, insert your syringe needle through the center of the BAC water vial's stopper and draw up the correct amount. Slow and steady.

Step 4: Add the Water Slowly — This Part Matters

This is the most important step. Point the needle of your syringe at the inside wall of the NAD+ vial, not directly at the powder sitting at the bottom. Let the water trickle down the glass slowly. Do not squirt it hard onto the powder.

Why? Forcing liquid directly onto the powder at high speed can degrade it. Think of it like rinsing a delicate fabric — gentle does it. Add the water in a slow, steady stream against the side of the vial.

Step 5: Swirl, Don't Shake

Once the water is in, gently swirl the vial between your fingers in a slow circular motion. The powder should dissolve within a minute or two, leaving you with a clear solution. If it takes a little longer, that's fine — keep swirling gently.

Do not shake the vial. Shaking can cause foaming and may damage the compound. Swirling is the move here.

Step 6: Double-Check Your Concentration

Before you do anything else, hop back to the calculator and confirm your concentration math. Enter the amount of powder in your vial (usually listed in milligrams on the label) and the volume of BAC water you added. The calculator will tell you exactly how many milligrams are in each 0.1 mL increment on your syringe. Write this down. Seriously — write it down somewhere you won't lose it.

Step 7: Store It Correctly

Your freshly reconstituted NAD+ solution needs to go into the refrigerator right away. Keep it stored upright, away from light. Most reconstituted peptide solutions remain stable in the fridge for several weeks when handled properly. Avoid freezing the reconstituted solution — freeze-thaw cycles can degrade it.

Label your vial with the date you mixed it. That way you'll always know how fresh your solution is.

A Quick Summary

Warm the vial first
Swab all stoppers with alcohol
Use the calculator to get your water volume right
Add BAC water slowly along the vial wall
Swirl gently until clear — never shake
Refrigerate immediately and label with the date

That's genuinely it. A little care and the right tools make the whole process straightforward. You've got this.

How to Reconstitute NAD+: A Simple Step-by-Step Guide