[Product Question] Has anyone had success with using licorice root extract to lighten PIH/Hyperpigmentation?

Beauty Tips For Body Care
I saw a reddit post/youtube video of a girl that claims she treated her hyperpigmentation and acne scars by mixing licorice root extract into her facial cleanser and moisturizer. I cannot find anybody else that has experienced the same results or have even used licorice root extract. Has anybody here had any experiences with it?
Girls Blog 2015
Submitted by taidyee