Lemon juice can provide a variety of benefits for the face, including eliminating blackheads and lightening self-tanner and age spots. Lemon juice can work as a toner to help with problem skin, and it is also excellent at reducing excess oil on the skin to eliminate shine.
For rough and dry lips, a small amount of lemon juice can be rubbed on before bed. This can help exfoliate any dead skin. Care should be given to avoid small cuts and chapped lips, as the citric acid could burn. Aside from the face, liberal amounts of lemon juice can be applied to the scalp to treat dandruff.