You’ve probably seen videos of people gently slapping skincare on to their face for a dewy, flushed look. This K-beauty trend is known to improve blood circulation and boost collagen production. What more? It also helps your skin absorb the products better. This method mostly works for lightweight, water-based products such as essence, serums, toners and light moisturisers. P.S.: Don’t slap yourself too hard. Just gentle, quick taps across the face focused on product absorption is all you need.