Be Careful! The cold can harm!
As with many products, nail materials are also affected by cold temperatures outside. Heat fluctuations during transport can cause the material to solidify (e.g. in the case of Acid Primer) and solidified material can damage the brush if it is removed from the bottle while still solid. Therefore, if the outside temperature is below 8 °C, it is advisable to leave these preparation liquids at room temperature (23 °C) for at least 1 hour before opening to avoid damaging the brush.