GETTING MY HERBAL TINCTURES TO WORK

Foolish query but I have menthol crystals and have already been fearful to use them. Do I need to mix them in when warm or when cooled? I might think they would want to generally be melted in, correct?To seek out much more specifics of a certain ingredient or item, it is possible to hunt for them through the EWG’s Pores and skin Deep databases or