Treatments for discolorations rely on their gradual brightening, through the use of ionophoresis and sonophoresis based on high concentrations of vitamins A and C. Such treatments are carried out alternately with ionopeeling using lactic and ascorbic acid. The effect of correcting hyperpigmentation depends on individual internal factors of the body, which include mainly hormonal treatments, pregnancy, liver disorders and taking photosensitizing drugs. Sun and sun beds must be avoided.