human
I've been hearing a lot of buzz about a new type of hair care product called "hair serum." What is it, and is it safe to use?
assistant
Hair serum is a product designed to help strengthen the hair by providing essential nutrients. It can also help repair damaged hair and add shine. It's important to choose a good quality hair serum that contains natural ingredients like oils and vitamins. Make sure to read reviews before buying to ensure you're getting the best product for your hair type.