*infact is a lip serum exclusively sold at aesthetic clinics.* Reference price: ¥6600 *The following is quoted from the website:* The package was renewed and the price was revised in the fall of 2023. Focusing on the "aging" of the lips, this lip serum, exclusively sold at clinics, is formulated under the supervision of dermatologists with ingredients effective for increasing volume and improving wrinkles, blemishes, and dullness. By incorporating the anti-aging ingredient "retinol," it not only plumps the lips but also cares for wrinkles, dullness, and blemishes. This product was developed for Japanese people, so it can be used with peace of mind by those who find "foreign products too irritating" or "strong fragrances unpleasant." ・Contains "retinol," a versatile ingredient that promotes skin turnover and anti-aging. ・"Instantly" x "Gradually" for volume up! ・With hyaluronic acid & malic acid for supple hydration.