It takes 3~5 times to do color light rejuvenation. It does take many times to lighten the skin, but the specific number varies from person to person. If it is freckle, and to increase the amount of collagen production, it needs to receive an average of 5 treatments, and some patients may need to receive more or less than 5 treatments. After skin rejuvenation treatment, fine lines will be reduced and skin smoothness will be improved, while the change of collagen occurs in the deep layer of skin, and it takes six months to one year to see the effect. Therefore, the skin rejuvenation is gradual. It takes a period of treatment interval to rejuvenate the skin with colored light. After several months of color light rejuvenation treatment, the face will gradually become smooth. Generally, the skin condition will be obviously improved after the third color light rejuvenation treatment.
Reference: Strait Plastic Surgery Hospital-National 10 Brand Plastic Surgery Hospital.