I'm curious about the duration of Libby Hill.

Since last year, my overall skin tone has become dull, and the freckles and blemishes on both cheekbones seem to be getting darker little by little, so I am looking into getting some skin care treatments. In the past, it was fine if I just covered them lightly with concealer, but lately, even when I apply makeup, it still looks patchy, which is bothering me. Especially on days when I've been exposed to a lot of sunlight, my cheekbones seem to look even darker, so I am looking into various options, ranging from skin care treatments like Livy Heal to Pico Toning. Livy Heal is often talked about for improving skin condition, hydration, and texture, but I am wondering if it is worth getting for my pigmentation concerns as well. I am also curious if combining it with Pico Toning would be more helpful for improving my skin tone! If I add Skin Botox to this as well, can I expect an overall effect of smoother skin? I would like to know the differences between each treatment, the duration of Livy Heal's effects, and recommended combinations when used together.