Within 4 weeks using the 4%
hydroquinone skin care system plus 0.05% tretinoin, the result is that it can reduce the
severity of the occurrence of melasma and pigmentation ardor of melasma. It can be seen that
the researchers used two types of the treatment of melasma, hydroquione protects the pigment
of the skin when skin cells to produce skin layer again As a result, the skin has less melanin
and reduce the black and tretinoin as acid vitamin a helps shed dead skin cells away