What is it: TATCHA's Luminous Deep Hydration Firming Serum in full and travel sizes is the perfect duo to keep skin hydrated and appearing firmer any time of the day. It's ideal for home and when you're on the go. And, as part of this Auto-Delivery plan, a new shipment arrives approximately every 90 days for two years. It delivers hydration to help skin appear firmer with hyaluronic acid and the HADASEI-3 Bioactive Complex. Who is it for: This skincare essential will benefit all skin types. Why is it different: TATCHA's collection is based on a ritual beloved by geishas to reveal the skin's inherent beauty. HADASEI-3 is a complex of green tea and extracts of Japanese rice bran and red algae. How do I use it: Use it day or night to prep skin before moisturizer. From TATCHA. Each shipment includes 1-fl oz Luminous Deep Hydration Firming Serum and 0.34-oz travel-size Luminous Deep Hydration Firming Serum; shipments arrive approximately every 90 days for two years Please click on the About Auto-Delivery tab for more information Each shipment includes 1-fl oz Luminous Deep Hydration Firming Serum and 0.34-oz travel-size Luminous Deep Hydration Firming Serum; shipments arrive approximately every 90 days for two years Please click on the About Auto-Delivery tab for more information