En Salon is a Brookline Hills hair salon founded by Kayoko Matsumoto in 2017 and expanded in 2023. Led by Kayoko and her team of stylists, the salon is centered on helping clients address insecurities about their hair and achieve their desired look through intentional, precise, and attentive service. Kayoko is noted for creating long-lasting, low-maintenance haircuts, and the salon emphasizes a refined atmosphere where meaningful transformations and client satisfaction are a priority.