15. Washing oneself with liquid that also contains hair removal liquid on Shabbos:
It is permitted to wash ones face, hands and feet with liquids that do not remove hair which are mixed with hair removal substances so long as the majority of the mixture is not made up of hair removal substance in a way that [washing with this mixture] will inevitably [remove hair].
Summary-Hair removal tonic:
Is forbidden to use on Shabbos due to the sheering prohibition.