Cách sử dụng
The word 'softener' is used in many contexts to describe a substance or appliance that can soften something. For example, water softeners remove hard minerals from water to make it more gentle on skin and clothing. Fabric softeners are added to laundry to make clothes feel soft and fluffy. Hair softeners are used to make hair look shinier and smoother. In general, anytime you want to make something softer, you might use a softener.