Location: San Diego, CA

Skin type: Normal to combination, prone to dehydration and occasional sensitivity

Skincare priorities: Hydration, barrier support, daily SPF that feels invisible

First Impressions

Living in Southern California, SPF isn’t optional. But finding one that feels weightless, layers well under makeup, and doesn’t leave me greasy by 3 PM has been a constant struggle.

I’ve gone through my fair share of Korean sunscreens—Beauty of Joseon Relief Sun, Round Lab Birch Juice Sun Cream, and Etude Soon Jung Director’s Moisture Sun Cream, just to name a few. While all of them had their own strengths, most still left me wanting more in terms of finish, layering comfort, or midday oil control.

I came across the Skin1004 Hyalu-Cica Watery-Fit Sun Serum after seeing a few quiet raves online. The words “watery,” “weightless,” and “non-sticky” kept popping up, so I figured it was worth a try.

And honestly, after just two uses, I knew this one was in a different league. 

If you're curious how it compares to other sunscreens I've used, feel free to ask. I’ve definitely formed some opinions.

Texture, Finish, and Application

This sunscreen feels more like a hydrating essence than any SPF I’ve used before. It has a fluid, gel-serum texture that glides on effortlessly and absorbs within seconds. There’s absolutely no white cast, and it leaves a natural skin finish that isn’t too dewy or too matte. It sits beautifully under makeup without any pilling.

One of the things I appreciate most is that it never feels heavy, even with midday touch-ups. I often reapply around my cheeks and nose, and it doesn’t cake or disturb my base. It also plays nicely with the rest of my routine—toner, serum, moisturizer—without any weird reactions or stinging, even on days when my skin feels a bit sensitive.

Hydration & Sun Protection

With sodium hyaluronate and centella-derived ingredients in the formula, the hydration is noticeable. My skin stays moisturized for hours without turning slick. It gives that soft, cushioned feel that makes you forget you’re even wearing sunscreen.

As for protection, it’s SPF50+ PA++++, and I’ve worn it through long walks and afternoons at outdoor cafés. No sunburn, no redness, and no dryness afterward. The serum-like consistency makes it feel breathable and skin-friendly, like a sheer protective veil rather than a thick coating.

How I Use It 

I apply it every morning after my moisturizer, using about two pumps for full coverage. One pump just isn’t quite enough, so two is the sweet spot for making my skin feel fully protected.

It layers seamlessly under any base product I use, whether that’s a tinted moisturizer, cushion foundation, or powder. I also reach for it when I’m not wearing any makeup. It gives a plump, healthy finish without shine. On days when I exfoliate or my skin feels more sensitive, it still feels calming and gentle.

Results Over Time

After using it consistently for about three weeks, I started to notice a real difference. My skin felt smoother, and that afternoon tightness I used to experience was gone. Even on lazy days when I skip toner, this sunscreen seems to lock in enough moisture to keep my skin balanced.

No clogged pores, no strange breakouts, and absolutely no stinging around the eyes—a huge win in my book.

What I love most is how my skin looks a few hours after application. It has that fresh, well-rested glow, like I just had a facial, but with no heaviness or greasiness.

Pros

●Lightweight gel texture that absorbs quickly

●No white cast, no pilling, and non-greasy

●Hydrating without being oily

●Gentle enough for sensitive and reactive skin

●Works beautifully under makeup

●No eye irritation

Cons

●One pump dispenses too little, so two are usually needed

●Not water-resistant, so not ideal for intense workouts or the beach

●Best for daily use rather than prolonged outdoor exposure

Summary

If you’re searching for a sunscreen that feels like a soft hydrating veil rather than a heavy film, the Skin1004 Hyalusica Wateryfit Sun Serum is an ideal everyday pick. It won’t clog your pores, sting your eyes, or interfere with your makeup. Instead, it enhances the rest of your skincare and makes sun protection feel like a natural extension of your routine.

I wouldn’t necessarily reach for it on a beach day or an intense hike, but for everything else, from morning commutes to gallery visits and cafe runs. It’s perfect.

It’s become a no-brainer step in my AM ritual, and I genuinely look forward to using it. If you’ve struggled to find an SPF that feels right for daily wear, I can’t recommend this one enough.

Rating: 4.9 / 5