Petal bath generally uses rose, rose, osmanthus, jasmine, cinnabar, Prynne, chrysanthemum, Robinia pseudoacacia and so on. Or use essential oils. \x0d\\x0d\ First of all, the petals must be fresh. When petals are used between 1 and 3 hours after flowering, the fragrance effect of bathing is the best. If it takes more than 3 hours, the fragrance of the flowers has dissipated by more than half, and the effect of leaving fragrance is far from good. For people who take a bath with it, the refreshing effect will be greatly reduced. Try to use fresh petals, not old petals that are more than 2 days old. The pharmacological action of the former is much more significant than that of the latter. \x0d\ Secondly, the petals must be cleaned, especially the water quality. Fresh petals cannot be washed directly with tap water, because chlorine gas rich in water will not only damage petals, but also dilute fragrance. Therefore, it is suggested to let tap water stand for about half a day to make its chlorine volatilize before cleaning. \x0d\ In addition, it is very important to clean the residual pollen on the petals when washing them. For some people who are allergic to pollen, the residual pollen on petals is easy to cause skin allergy. Once pollen is inhaled into the respiratory tract, it may also cause diseases such as upper respiratory tract allergy. \x0d\ The best DIY rose bath at home should pay attention to the picking and cleaning of petals. For example, it is best to pick petals that have just been wetted by dew. The fresher the better, the withered petals have poor fragrance and effect. Secondly, the rose petals should be washed clean, especially pollen and insects, and it is best to use pure water; In the control of water temperature, it is best to evaporate the essence of rose petals with high temperature such as steam first, so as to maximize the refreshing effect of petals and facilitate human absorption. \x0d\ It is suggested to go to the supermarket to buy air-dried dried dried flowers without additives, and put a bath water in them when you come back. It can relieve fatigue and nourish skin. Long-term use, the body should also have that kind of natural fragrance, which can lighten the hair color, have a natural dyeing effect and add luster to blonde hair.