The hyaluronic acid toner K-beauty fans recommend by reflex — and one of the few in the category that genuinely earns the cult following. The headline is the 14 types of hyaluronic acid Isntree packs into the formula, ranging from ultra-low molecular weight (which penetrates deeper into the skin) through to high molecular weight (which sits on the surface to lock moisture in). Together, they hydrate at every layer of the skin, instead of just at one. The base is sea water from Korea's Ulleung Island, naturally rich in over 70 minerals that support skin hydration and reinforce the barrier.

The texture is a gel-like watery toner that absorbs in seconds without any stickiness — light enough to layer multiple times for the "7-skin method," substantial enough that one or two layers genuinely change how plump your skin looks. Panthenol, allantoin, betaine, and witch hazel keep the formula calming and gentle, and the generous 300ml size means you can use it freely without rationing — exactly the point for a daily hydrating step. Vegan, fungal-acne safe, fragrance-free, and free of essential oils.

Best For: Dehydrated, dry, or dull skin — also a great daily hydration step for all skin types (including oily and combination), and especially good for anyone wanting to try the "7-skin method" of layering toner for plumper skin.