Q: What is the root of the problem of oily scalp? Does it mean that the scalp is not healthy enough? A: First of all, it is a very natural function of the scalp to secrete sebum to moisturize the hair and protect itself from external damage, and even the so-called dry scalp still has the ability to produce sebum. However, the sebum produced by healthy skin will quickly emulsify and form a lipid film, which does not make it feel greasy, so when you feel that your scalp is oily, it is a sign of health problems in the scalp. Q: Many people have an oily scalp and dry hair ends, how should I wash and condition in this case? A: Many people feel that their scalp is oily simply by feeling oily, but in fact, as mentioned above, the so-called dry scalp is also moisturized by sebaceous glands that secrete sebum. If for some reason more sebum is secreted in a short period of time, it accumulates on the scalp and hair roots, while the hair shaft is dry because it has not yet been moisturized, and is often mistaken for an oily scalp and dry hair. If you have this problem, you can use oil-control cleansing products and then apply some moisturizing products on the dry hair to help repair the scales. Q：Oily hair people, in order to image good, need to wash hair often, some girls wash hair every day, but found that the hair will become more and more oily, what is the reason? A: As mentioned before, the purpose of sebum secretion from the scalp is to form a sebum film to protect itself, including preventing ingredients from outside the body from entering the skin as well as preventing water loss within the skin. If the sebum is not emulsified, then the water evaporates leaving only the oil and not being able to moisturize effectively, then the skin will work harder to secrete sebum to form a sebum film because of dehydration. Excessive cleansing further destroys the already unsound sebum film and worsens the situation, which is why the more you wash, the oilier it becomes. Q: Scalp care is very popular now, please explain how scalp care products work and how long it takes to really see results? A: The so-called scalp care, in my understanding, is to improve the scalp overwork to restore the healthy state of the scalp and do some work, including improving the high oil secretion, dandruff, hair loss, etc., and its effectiveness and working principle are also different, for example, dandruff can usually be effectively improved after a single cleaning, but if it is not able to control oil and long-lasting anti-bacterial, dandruff can be generated again after a few hours, for the dandruff Scalp care for dandruff should effectively regulate the amount of oil secretion and inhibit the growth of Malassezia, the main cause of dandruff, in order to be effective. The hair loss problem that is technically the most difficult to solve has the longest effective period. Q: What are the precautions for people with oily hair when using hair masks or hair oils? A: No matter what kind of hair you think you have, please remember that hair masks and oils are for the hair, not the scalp, so please apply them at least five centimeters away from the scalp, try not to apply them to the scalp, and rinse them off. Q: Besides using oil control products to improve oiliness, what should I pay attention to in my life? A: Lack of sleep tends to overload the sebaceous glands, producing a lot of oil and making people feel greasy and uncomfortable. So if you can live a light diet and have a good rest and a happy mood, it will help alleviate or even improve the situation.