Rogaine is a popular brand name for hair regrowth products that contain the active ingredient minoxidil. Although Rogaine is the most well-known brand name for this type of product, there are many synonyms that can be used to describe minoxidil-based hair regrowth treatments. Some of these synonyms include: Minoxidil Solution, Minoxidil Topical Solution, Hair Regrowth Treatment, Hair Loss Treatment, and Hair Growth Serum. Other brand names for minoxidil-based products include Regaine, Kirkland Signature, and Lipogaine. Regardless of the brand name, all of these products work by increasing blood flow to the hair follicles and stimulating growth.