1, since the age of 20, every time before going out 20 minutes are spent on applying sunscreen, but spots are still begging to come uninvited, I think this little beast is simply can not be prevented! In fact, it is not that the sunscreen has lost to the spots, but that the protection is started too late – the melanocytes in the skin can remember the total amount of UV exposure, 80% of the UV exposure received in a person’s life is accumulated before the age of 18, and after the age of 20 everyone After the age of 20, we all wake up and start to focus on sun protection and whitening, but at this time, no matter how attentive, the amount of daily UV exposure will slowly accumulate, and one day the memory bank of melanocytes will be filled up, thus forming pigmentation, so dermatologists recommend that we develop sun protection habits from childhood. Tips: Even if you wear a thick enough “sunscreen”, a small amount of UV rays will still penetrate your skin, so it is necessary to combine it with physical sun protection measures. 2, Investment in whitening products has long been changed to “Wan”, but the spots are still waving around on the skin, so it makes you wonder if these care products are playing the boring trick of “psychological placebo”. You have tried all the best whitening products and searched all kinds of whitening remedies on the Internet, but the spots are still visible on your face, so you start to be skeptical of expert reviews and online votes. At this time, you should firstly check whether you have done enough sun protection; secondly, you should ask a professional doctor to check the nature of your spots, as the treatment strategies for different types of spots are completely different. There are some types of spots (such as freckles) that can be treated with laser therapy with good results. 3.I was expecting to be as white and bright as a porcelain doll after laser spot treatment, but I didn’t expect to become a “black face”, which is not to plan a hole for myself! The most common psychological obstacle that people have to worry about is the darkness, and many people give up the follow-up maintenance, so the treatment effect is greatly reduced. Although Oriental people have a higher chance of having anti-tan than Westerners, not everyone will have it. Generally, people with darker skin tone or long cheekbone spots and no sun protection measures have a longer anti-tan period, while people with lighter skin tone and lighter spots such as freckles and sun spots have a lighter period. As long as the sunscreen is done well and the whitening creams or maintenance procedures are recommended by the doctor, the tanning will generally subside in about 2-6 months. Tips: Apply L-vitamin C within 2 weeks before receiving laser, it can reduce the anti-tan reaction. 4.It’s like an endless nightmare, not long after having laser, the dreadful spots come back! Not all spots will come back after laser, for example, freckles and cheekbone spots can be completely removed and will not come back again, as long as the post-operative maintenance is done well, the re-formation of spots can be avoided.