Washing your hair is an important step in keeping your hair healthy and beautiful, and in addition to cleaning your scalp and hair of dirt and oil, the right shampooing can also make your hair straighter and fuller. Here are some shampoos to keep your hair smooth, straight, and voluminous:
1.Use the right shampoo for your hair Choose the right shampoo for your hair type, such as products for dry, oily, soft, or coarse hair. Make sure the shampoo contains ingredients that cleanse the scalp and hair and doesn't over-dry or irritate the scalp. 2.Massage the scalp While shampooing, gently massage the scalp with the tips of your fingers to promote blood circulation and hair growth. Massage stimulates the scalp for healthier and thicker hair. 
3.Shampoo with lukewarm water Shampooing your hair with lukewarm water cleanses your scalp and hair better and doesn't irritate your scalp. At the same time, avoid using excessively hot water to shampoo your hair to avoid damaging your hair. 4.Rinse thoroughly After shampooing, rinse your hair thoroughly to remove residue from the shampoo and conditioner. This avoids hair damage from excessive dryness or residue. 5.Using a conditioner or hair mask can protect your hair, leaving it softer, smoother, and easier to comb. Choose a conditioner or mask that suits your hair type and follow the product directions. 
6.Use of a hair dryer After shampooing, you can use a hair dryer to dry your hair. When using a hair dryer, pay attention to the temperature and wind to avoid damaging your hair. At the same time, the hair dryer should be kept away from the scalp so as not to irritate the scalp. In conclusion, to keep your hair smooth, straight and voluminous, you need to use a shampoo and conditioner that is suitable for your hair, the right way to wash your hair, and pay attention to hair protection and care.