Peptide Reconstitution Chart Explained

A reconstitution chart is a quick-reference table that shows, at a glance, what concentration you end up with when you combine a given peptide mass with a given volume of solvent. Instead of running the math every time, you find the row for your vial size and the column for the volume you plan to add, and the cell tells you the resulting concentration. It is a convenience tool, not a substitute for understanding the underlying formula, but once you know how to read one it saves time and prevents slips.

The math a chart is built from

Every reconstitution chart is generated from a single relationship:

Concentration = peptide mass ÷ solvent volume

A chart just pre-computes that division across common combinations. Nothing in it is magic; if you multiplied any concentration in the chart by its volume, you would get the mass back. Keeping that in mind lets you spot a typo or a mismatched unit instantly.

A sample reconstitution chart

The table below shows the concentration in mg per mL for several common vial sizes across a range of solvent volumes. These figures are illustrative, meant to show how the chart behaves, not a recommendation for any specific compound.

How to read it

Find the row that matches the mass in your vial, then move across to the column for the volume of solvent you intend to add. The value where they meet is your final concentration. The pattern is worth internalising: more solvent means a lower concentration, and doubling the volume always halves the concentration. That inverse relationship is the single most useful thing a chart teaches.

Common ways a chart trips people up

• Reading the wrong row. A 30 mg and a 50 mg vial produce very different concentrations at the same volume. Confirm the mass against the label and the certificate of analysis before you pick a row.
• Mixing up mg and mcg. If a chart is written in one unit and you are thinking in another, every number will be off by a factor of 1000.
• Assuming a chart applies to your exact vial. A generic chart is only correct if your vial really contains the stated mass, which is why the COA matters.

Build your own from one number

You never actually need a chart. If you know the mass in the vial, pick any volume, divide, and you have the concentration. A chart just does that division ahead of time for the volumes people use most. Treat it as a shortcut you can always verify, not a rule to follow blindly.

Why the vial has to be accurate

A reconstitution chart assumes the mass printed on the vial is real. If it is not, the whole table is fiction for that vial. This is the quiet reason purity testing matters so much: the certificate of analysis confirms the identity and amount of peptide present, which is exactly the input the chart depends on.

Sourcing accurate peptides in Canada

LYFE Science is a Canadian supplier and verifies every lot by HPLC and mass spectrometry, with a certificate of analysis available, so the mass on the label matches the powder inside. We ship nationwide by Canada Post at a flat $25, free over $150, with same-day dispatch on orders paid before noon Eastern and delivery to most of Canada in one to three business days. Packaging is plain and neutral, and we accept Interac e-Transfer and crypto (BTC, ETH, SOL, USDC, USDT).

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