Bath bombs and bath melts are both types of products that can be added to baths to make them more relaxing or fragrant. They both typically contain essential oils and other ingredients that can provide aromatherapy benefits. The main difference between the two is that a bath bomb is solid and will fizz when it comes into contact with water, while a bath melt is typically in the form of a bar that will slowly dissolve. Each has its own benefits - for example, a bath bomb can provide a fun show as it fizzes, while a bath melt can help to moisturize the skin. Ultimately, it comes down to personal preference as to which type of product you prefer.