Apparently its really effective. It is mentioned that its more effective than kojic acid and hydroquinone due to producing the same effect at lower concentrations with minimal to no skin irritation.
Im not sure if anyone has used it for skin lightening its not something often used or spoken about like kojic acid or hydroquinone. I might put it to the test by using it on one leg only just to see how it goes.
I found a site that sells it and it comes in a 20% solution. https://www.makingcosmetics.com/Mulb...ract_p_17.html
It says its water soluble, so Im assuming I should use it with a water based lotion? I want to use a 5% concentration, so should I pour 5mls into a 650ml Jergens lotion? Im unsure how to go about this