Find a deep conditioning treatment that's right for your hair type. There are many products on the market, and while they're all made to restore moisture to hair, you should find one that's tailored for your specific needs.  If you have kinky, textured hair, look for products made specifically for kinky hair. If you have fine hair, look for products that are described as "light" or "weightless." Products made with heavier oils will make your hair look weighed down. If you have curly hair, look for products designed to keep your frizz at bay. Use a gentle shampoo that won't strip your hair too much. Avoid shampoos made with sulfates, which are abrasive cleaning agents that cleanse hair of its natural oils and lead to dryness and breakage. Squeeze a dollop about the size of a quarter into your hands and rub your hands together.  Then apply the product to your hair, beginning about halfway down the shaft and moving towards the tips of your hair.  Then spread the any product that remains on your hands from the roots to the tips. Pay special attention to the tips, which tend to get drier than the rest of your hair. If necessary, use a wide-toothed comb to distribute the product. Deep conditioning treatments require at least 10 minutes to get to the core of each strand of your hair.  Check the instructions on the product you are using, as some may suggest being left on longer, but most should work in 30 minutes or less.  You may want to keep the conditioner in place by covering your head with a plastic shower cap, but this is optional. Some products suggest using hair dryer to heat up the product in your hair, which allows it to get absorbed into your hair more easily. Use a blow dryer on a low setting to direct hot air at your head and thoroughly heat up the product. Make sure the hair dryer doesn't get too hot, since you don't want to melt the plastic cap if you are using one. Remove the shower cap and rinse your hair with cool water, which will tighten the hair shaft and make it look shiny. After rinsing, towel...

TL;DR in Vietnamese:
Chọn sản phẩm. Gội đầu. Bôi dầu ủ lên tóc. Để kem thấm vào tóc. Sử dụng nhiệt. Gội sạch sản phẩm.