Ensure the deodorant is mixed completely (some separation is normal), scoop a little with your finger and gently apply to the entire armpit (dont push hard, its sensitive skin). Make sure its absorbed completely (absorbs quickly), then go about your day stink-free!
Note: You may notice increased skin sensitivity the day you shave. If so, please refrain from using the day you shave, and resume your deodorant use the next day. Alternatively, some clients shave in the evening, then use the deodorant the next morning without issue.
In hot weather, your deodorant may arrive in a liquefied state - don't fret! I don't use any unnecessary waxes or hardeners, so temperature fluctuations will alter the solidity of your deodorant. Simply mix thoroughly to reincorporate clays and liquids, then pop in the freezer for about 20 min, until resolidified. You'll be as good as new!