Is swirling my small makeup brushes on a bar soap a good way to clean it?

because i use gel eyeliner everyday and i don't want the eyeliner to dry hard on my brush, i've been swirling my mac 208 on a bar of hand/body soap followed by rinsing it thoroughly under the tap. i know the usual method is to swirl the brush in a container with shampoo and water (or any other brush... show more because i use gel eyeliner everyday and i don't want the eyeliner to dry hard on my brush, i've been swirling my mac 208 on a bar of hand/body soap followed by rinsing it thoroughly under the tap.

i know the usual method is to swirl the brush in a container with shampoo and water (or any other brush cleaners), but i just don't have the time for this early in the morning.

is this a good way to clean my brush? will this damage it? (because i do want it to last as long as possible)
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