Three packages on one shelf can hold the same nicotine and still look nothing alike. One says 3%, another says 30 mg/mL, a third prints a small number on the corner of a disposable. The labels are not competing claims; they are the same measurement written in different units. Vapezova lists both forms on e-liquid bottles and on disposable devices for that reason, and the short guide below is enough to compare almost anything you pick up.

Three ways the same number is written

A percentage is simply milligrams per milliliter divided by ten. Move the decimal one place to the right and the percentage becomes mg/mL: 2% is 20 mg/mL, 3% is 30 mg/mL, 5% is 50 mg/mL. Going the other way, divide by ten.

The third style is total nicotine in the package. A 2 mL pod at 5% holds about 100 mg of nicotine across the whole cartridge. A 60 mL bottle at 3 mg/mL holds roughly 180 mg in total, but it lasts far longer. Total nicotine tells you what is in the container, not what one puff delivers.

Doing the arithmetic before you buy

Two numbers decide whether a purchase makes sense: concentration and volume.

  • Concentration, in mg/mL or percent, sets how strong each draw feels.
  • Volume sets how long the bottle or pod lasts and how much nicotine the package contains overall.
  • Device type sets consumption. A low-power pod may use 1 mL in a day; a sub-ohm tank can use several times that.

Someone vaping 2 mL of 20 mg/mL liquid takes in roughly 40 mg across a day. The same person using 6 mL of 6 mg/mL takes in about 36 mg. Different bottles, similar daily totals, very different throat hit.

Why salt and freebase feel different

Two liquids at 20 mg/mL do not behave identically. Freebase nicotine carries a sharper throat hit and suits lower concentrations in larger devices. Nicotine salt is smoother at the same strength, which is why high-concentration pods often use it. Strength on the label says nothing about smoothness, so match the formulation to the device rather than to the number alone.

Stepping down without a rough week

Reducing strength works better in small increments than in one jump. From 50 mg/mL, a 35 mg/mL pod is a gentler step than dropping straight to 20. From 20, try 12 or 10 before 6. Keep the device and flavor unchanged during a change so the only new variable is the liquid.

Expect the first day to feel different: less throat hit, more frequent draws, and a stronger urge to chain vape. Drinking water helps with the dry mouth that often comes with a change in routine. If you feel unwell, lightheaded or unusually irritable, speak with a doctor rather than adjusting the strength on your own.

Nicotine pouches carry their own labels, and the same conversion applies there, though absorption differs from inhaled products. Compare the numbers, change one variable at a time, and keep notes for a week. That habit turns a confusing shelf into a clear choice, and it is the approach Vapezova takes when describing every strength in its catalog.