Half a croissant, on a plate, with a sign in front of it saying '50c'
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Roller-ball

Is it any use for medicaments?
 
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The deodorant roller-ball system delivers aluminum stearate or whatever.

Because of its convenience is the ball principle any use for delivering some skin-penetrating substances also?

[Superficially searched.]

rayfo, Jul 11 2001

Dimethyl sulfoxide (DMSO) http://www.dmso.org...nformation/muir.htm
Anything dissolved in DMSO goes right through the skin. (Old yippy trick was to dissolve LSD in DMSO, and put it in squirtguns for use on the Pigs.) NB: take cure-all claims with a grain of salt. [rmutt, Jul 11 2001, last modified Oct 17 2004]

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       My little brother had acne medication in a roll-on applicator when he was a pimply young fellow....
globaltourniquet, Jul 11 2001
  
      
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