La Fiole Bleue

E-liquid, read closely.

The Blue Vial, e-liquid read closely

We decode e-liquid from its bottle. The label, the bottle size, the nicotine strength, the standards and the storage are explained so you understand what you are holding, with no catalogue and no shop listings.

A La Fiole Bleue tool

The bottle mixer

Enter the volume and nicotine strength of each bottle you pour. The total volume and the final strength of the mix update as you type.

Bottle A
Bottle B

Total volume60 ml

Final strength3.3 mg/ml

Share of each bottle in the mix

  • Bottle A 83%
  • Bottle B 17%

Plain arithmetic that weights each strength by the volume of its bottle. Any strength entered is capped at 20 mg/ml. Always go by the label on each bottle.

Latest close reads

Why everything starts with the bottle

You choose, dose and store an e-liquid from what is printed on its bottle. La Fiole Bleue sells nothing and ranks no shop. We read the label, the bottle size, the nicotine strength and the standards behind them, so you know exactly what you are holding.

Read about our approach

Where to start

Bottles Reviewed

One bottle at a time, and what its label really tells you about the liquid inside.

See the section

Formats & Strengths

Bottle sizes, nicotine strengths and mixing, so you know what you are pouring and in what proportion.

See the section

Standards & Labels

Mandatory wording, pictograms and product rules, read line by line.

See the section

Storage

Light, heat, air and best-before dates, and the habits that keep an e-liquid as it was made.

See the section