This is a serum with a 30-second usage period. I bought it but didn't like it, so I'm selling it. Would you like to try it? ✔︎ 1ml x 4 packets ✔︎ Purchase date: February 2024 ⚪︎ Adds transparency and luxurious moisture with each use ⚪︎ Penetrates the stratum corneum to care for UV damage ⚪︎ Suppresses melanin production, preventing spots and freckles The item will be shipped in simple packaging only. Please understand that there may be crushing or dents before purchasing. Shipping will be via the most affordable method.