The Niuk roll-on has no battery or cable: it captures the cold already produced by your freezer and releases it during the massage.
The golden rule for using the Niuk is three.
Three elements
1. The roll-on body
This is the heart of the device. Inside, a PCM maintains the cold at −18°C. It also holds the serum, which the ball applies in a thin layer during the massage.
2. The steel ball
Medical-grade steel, removable for maintenance. This is what massages the skin.
3. The serum
Niuk serums are cryo-compatible; each has its own purpose and benefits: a single squeeze per zone is enough, and the ball spreads it during the massage.
Three steps for use
1. Chill the Niuk
Place Niuk in the freezer for half a day before the first use, then keep it there permanently afterwards. Take it out just to use it.
2. Insert the serum
Remove the cap at the bottom of the Niuk and screw the serum pipette in its place.
3. Massage the area
All you have to do is press the metal ball against your skin and massage the area you wish to treat. There is no need to press hard; the roll-on does the work.