Sum37 Relief

The line's name says the goal directly, relief for skin that's dehydrated, tight, or mildly irritated, delivered through marine-derived hydrating ingredients rather than heavier occlusive oils. It's positioned for skin that needs calming as much as moisturizing, which is why the format runs light (ampoule, gel cream) rather than into rich balms or thick night creams.

The Ampoule Essence is the concentrated first step, applied after cleansing and toning to deliver the line's marine hydrators before the gel cream seals them in. As an ampoule rather than a lighter essence, it's formulated to sit closer to a treatment step, useful on days skin feels especially tight or after sun or wind exposure.

The Gel Cream comes in a 50ml Water-Full size and a larger 120ml Waterpool size, plus edition variants, the Water Pool Marine Relief Gel Cream 120ml Special Edition and the Breath(able) Water Pool Marine Relief Gel Cream Special Edition 120ml. These editions carry small formula or packaging refinements over the base Gel Cream rather than being a different product line, so picking between them mostly comes down to size and whichever edition is currently in stock, not a meaningful strength difference.

The Breathable Water Pool Marine Relief Mask 3STEP KIT (5 sheets, with a Reverse Pack version totaling 15 pieces) packages a multi-step sheet mask ritual instead of a single mask, useful for an occasional deep-hydration session rather than daily use. It's the most treatment-oriented item in the line, worth reaching for before an event or after unusually dry, stressed skin days.

Several items here are set variants, the Ampoule Essence 50ml Planning set and the Gel Cream 120ml Special Set, which bundle the standalone product with an extra piece (often a travel size or companion item) rather than changing the core formula. These are worth choosing over the plain listing if you want to try the full routine at once or are buying as a gift.

The intended order is cleanser, toner, Ampoule Essence, then Gel Cream to seal it in; the Mask 3STEP KIT slots in before the essence step on the days you use it, as an extra hydration boost rather than a replacement for the daily routine. Skipping straight to the Gel Cream without the essence still works but loses the concentrated first-step hydration the ampoule is built to deliver.

First-time buyers do best starting with the 50ml Gel Cream and standalone Ampoule Essence to confirm the formula suits their skin before committing to the 120ml size. Once you know you like it, the 120ml Special Edition or a Planning/Special Set is the better value for repeat purchases, since you avoid rebuying the smaller size repeatedly.

Every Waterpool Marine Relief item listed here, including the sets and special editions, is sourced as authentic sum37 stock matching the brand's Korean retail packaging and formulas, not a repackaged or third-party substitute.