never used lush but assume its the same
rub on hed latgher a bit then rinse
u will be blown way by how good rthey smell...and work
store em on something that keeps em dry if u mean the 1 your using use a soap saver thingy 1 of those =things that keeps it upoff wthe wet soap dish if its sitting in a puddle it melts
if u mean the other bars not in use leave em wrpped up till u use em no need for special treatment that i know of i mean i got a dozen in a box here and there i dig one out when i need a new 1
sometimes i have more then 1 in use but ill leave 1 by the sink wheee it stays dry the other im actively using stays in the shower
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My new book Ban The Taboo Vol 1