There are multiple ways to reach Sephora customer service and have all your inquiries answered. The easiest way is to initiate the chat within the app - or on the official website. Another equally simple option is to call them on the phone using the number 1-877-737-4672. Service will be available between 5 AM and 9 PM PT Monday to Friday, or between 6 AM and 9 PM PT during the weekend. Sephora also has a robust social media presence, with accounts on Facebook, Twitter, YouTube, Pinterest, and Instagram.