Can lemon juice clears dark spot on your skin?

Using lemon juice is not an effective approach to clear dark spots. This pigmentation is produced by cells deeper skin layers. Laser offers a safe and more effective form of treatment. This modality uses a specific energy wavelength to actually destroy the pigment so that the remains can be carried away by the immune system which produces the desired clearing effect. Here is an example of a female patient treated at my office, the Dr.U Clinic, who had this done to get rid of her age spots. We used the Fraxel Dual laser to help clear her complexion and soften her skin. 

Treatment of dark spots and age spots can be performed with fractional laser and Covalent chemical peels. I would start with the Kareskin brightening kit with Melarase AM and Melarase PM with Melapads. 
Best, 
Dr. Karamanoukian
Realself100 Surgeon

Lemon juice contains Citric Acid which is an alpha hydroxy acid similar to those used in chemical peels that we use in the office. Please watch my Question and Answer videos for more skincare tips!