Exclusive to esthetic salons. This serum contains astaxanthin and has a reddish, viscous texture. It's formulated with a luxurious blend of high-concentration beauty ingredients to address various skin concerns, bringing out your skin's natural beauty and enhancing its resilience. It can also be used with beauty devices like iontophoresis. For all skin types. Oil-free, fragrance-free, synthetic colorant-free, and paraben-free (preservative-free). [Retail Price] ¥19,950 This item was obtained from an acquaintance who owns an esthetic salon. I am selling it because I don't use it. It is unused and unopened, but please consider it as a used item since it has been in someone else's possession.