Beauty Supply Store
If you are looking for a hair dye, your best bet is to go to a beauty supply store. These stores specialize in selling beauty products, including hair dye. They often have a wide selection of colors and brands, so you can find exactly what you're looking for. Additionally, beauty supply stores may sell other products related to hair dye, such as hair care products, brushes, and combs.
Grocery Store
Another option is to look for hair dye at a grocery store. Most grocery stores carry some type of hair dye, although it is usually limited to one or two brands. The selection of colors may also be limited. However, if you are looking for a basic color, such as black, brown, or blonde, you may be able to find what you need at a grocery store.
Pharmacy
You may also be able to find hair dye at a pharmacy. Pharmacies often carry a small selection of hair dye, typically from one or two brands. The selection of colors may be limited, but you can usually find basic colors like black, brown, and blonde. Additionally, pharmacies usually stock other hair care products, such as shampoo and conditioner, which can be helpful when dyeing your hair.