Isntree Hyaluronic Acid Watery Sun Gel SPF50+ PA++++
A gel-textured organic-filter sunscreen built around Isntree's hyaluronic acid positioning, with a fresh, almost squeaky finish and no cast. It reads as a hydrating gel rather than as sunscreen, sets fast and does not add shine. Isntree also sells a mineral formula under a similar name, which is a genuinely different product with a different feel — worth establishing before you place an order.
What it is built around
Who it suits
Oily and combination skin, and anyone in a hot, humid climate who wants SPF that adds no slip. It works under makeup provided you let it set properly first. Dry skin will find it thin and slightly tight without a moisturiser underneath. Sensitive skin should patch test, as with any organic-filter formula, particularly around the eyes.
How to use it
Final morning step, two fingers' length, applied in sections and then left alone to dry down. Rushing makeup on top is the main cause of pilling with gel sunscreens — give it a few minutes. Reapply outdoors every couple of hours; a stick over makeup is easier than reapplying a gel by hand.
🏆 Compare Korean sunscreen for sun damage & photoageing →
We describe products from public information and rank ingredients, never take payment for placement. Formulas change — always read the current ingredient list on the pack you buy.
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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.