SKIN TYPE: All skin types / COLLECTION: Bio-Performance / Take control of time with Bio-performance Skin Filler, an inseparable night & day duo serum that harnesses Shiseido's most futuristic technology inspired by aesthetic procedures. Instant filler benefits at home for skin that looks 5 years younger & volumized in just 1 day* Based on over 30 years of expertise in Hyaluronic Acid, the MolecuShift technology pushes the skin up from within for instant bouncy skin and less visible deep wrinkles. Step 1 - Infill Serum Night: Compacted High Molecular Weight Hyaluronic Acid penetrates intensely** the skin while you sleep. Step 2 - Full Expansion Serum Day: Compacted High Molecular Weight Hyaluronic Acid is expanded back to its original size, pushing up the skin from within for an instant gain in volume. 2-step Night/Day routine: - At night, apply 1 pump of Infill Serum before your moisturiser. - In the morning, apply 1 pump of Full Expansion Serum before your moisturiser. When used as part of the J-Beauty ritual, use as the last serum before moisturiser.