After the SKIN1004 Hyalu-Cica sun serum went viral on Tiktok, I knew I needed to try this as a connoisseur of Korean sunscreens! I saw so many reviews claiming this sunscreen had no white cast and a lightweight formula. I couldn’t wait to try this sunscreen on my medium toned, dry skin! Let’s see if the SKIN1004 Hyalu-Cica sun serum lives up to the Tiktok hype.