Can lemon juice clears dark spot on your skin?

A combination product including hydroquinone, kojic acid ,tretinoin and a steroid would be more effective.IPL or laser such as q switched yag would be a good option.

Using lemon juice to
lighten dark spots is one of those tall tales that we still hear about from
time to time. The acid in the juice may help exfoliate the skin but it has
never been shown to lighten dark spots of any significance. I would strongly
recommend that you consult a board-certified dermatologist to first examine the
dark spots to determine why you have them and then to develop a skin care
regimen to make them go away. Occasionally, this may require the use of peels
or lasers, but we want to always start with skin care.