Most importantly: always add X Lube powder to water and not the other way round. The rest is straight forward.
If you mix it in a bottle or a sports bottle just follow the step-by-step guide on the bottle and the leaflet attached.
Should you prefer to mix it in a bowl, fill it with warm water and use a fork or something similar and slowly stir the powder in. Occasionally stir the mixture again until it has dissolved. You can use the gel after 20-30mins, but it’s best developed after an hour or so.
Don’t use a blender or mechanical mixer as it chops the lube apart turning it into water.