If you’ve looked into Korean beauty, chances are you’ve stumbled across the Hada Labo Rohto Gokujyn Hyaluronic Acid Lotion. This product is extremely popular, and with a quick look at the formula it’s clear to see why. While those who are more familiar with western style skin care products may consider a lotion to be a slightly runner moisturizer, in Asian markets, a lotion is more of a hydrating toner, which can be layered underneath serums and moisturizers to increase hydration. The Hada Labo Lotion takes this idea to the next level by including 5 different weights of hyaluronic acid. For a seriously soothing and hydrating formula, it’s important to have different weights of hyaluronic acid in order to target the different layers of the skin. The lower molecular weights are able to hydrate the deeper layers of the skin, while the higher molecular weights moisturize the surface. All together, this formula offers a thoroughly hydrating product that would work well for almost all skin types, including sensitive skin.