I have been engaged in beauty for 6 years and have come into contact with many high-grade adjustable underwear! Orthopedic underwear is suitable for all ages, and parents abroad will let their children wear it until they are 16 years old. If you are really too thin, I don't recommend you to buy it! The price of ordinary orthopedic underwear is far from that of high-grade orthopedic underwear, of course there are differences! For example, the fabric (air permeability) and its steel frame (flexibility), like the question you just asked, will it easily cause breast hyperplasia? My answer is yes, because the orthopedic underwear made of ordinary fabrics has no elasticity on the steel frame supporting the chest, which is easy to cause poor blood circulation, while the high-grade orthopedic underwear is much better than ordinary underwear, and the life span of trying on is only about one to two years, so I don't think it will cause breast hyperplasia within the time range! Secondly, you misunderstood mammary gland hyperplasia. Wearing underwear is very important, but the maintenance of breasts determines whether you will get mammary gland hyperplasia, and most women have mammary gland hyperplasia. In fact, you don't have to be afraid, take good care of your breasts and do some breast maintenance regularly to keep your breasts beautiful!
It seems that I have said a little too much. Let me sum up: Orthopedic underwear is suitable for China/KLOC-adult women over 0/8 years old, regardless of their size. The most important thing is to adjust their body shape to the best, but pregnant women are forbidden to wear it! Choosing orthopedic underwear is very important. Fabric and steel frame can make your chest change a lot. Bad underwear can cause chest diseases, so from a professional point of view, I suggest that orthopedic underwear can go to a professional beauty club to see!
I can recommend several good professional orthopedic underwear: slim and elegant, Mark Baodi (the price may be a little higher than mine, but I think women must not be careless internally! )