Skin tanning is reversible.
Sun tanning is mainly triggered by the synthesis and secretion of melanocytes in the skin when exposed to ultraviolet rays, which produces more melanin particles, thus making the skin darker.
Already tanned skin, as long as you do a good job of strict sunscreen, can be used in conjunction with some whitening skin care products, appropriate to take foods rich in vitamin E, vitamin C, usually after 3-4 months, the skin can gradually return to the original skin color.
Each person’s situation is different, the thickness of the skin stratum corneum is different, the recovery time after tanning and the degree of difference, if the tanning is more serious, should be timely to the medical institutions to consult the dermatology, through the laser whitening, daily attention should be paid to sun protection.