Glutathione serum for dull skin: HEEDA High-End Glow Serum
In short
HEEDA Glutathione High-End Glow Serum is a Korean brightening serum I used morning and night for about two weeks for dullness, redness, and small dark spots. Its watery texture felt light and worked under makeup without pilling for me, and while my skin looked more even, that result was personal to my skin condition.

Good to know
- Product
- HEEDA Glutathione High-End Glow Serum
- Testing period
- About 2 weeks
- How I used it
- Morning and night for concerns including dark spots, redness, and dullness
- Where to buy
- Search “HEEDA serum” on Coupang
Prices as written by the tester on Dec 13, 2025 · not updated automatically
What are the texture and application like?


I often use brightening serums because I am concerned about small dark spots, redness, and dull-looking skin. This one had a watery texture that absorbed lightly as I applied it and felt as though it adhered to my skin.

- It did not feel especially sticky or heavy.
- I could use it without it sitting on the surface.
- Even when I applied it before makeup, it did not pill for me.


How did it feel on dry heels?

I also applied it to my rough, dry heels to check its moisture level. Right after application, it felt as though moisture was soaking in between the dry skin, and rather than looking oily on the surface, my heels felt soft and hydrated. I also felt hydration and a subtle glow when I applied it to the backs of my hands.

How did my skin change after two weeks?


After using it consistently for about two weeks, I felt that my redness and small dark spots looked more refined, while my skin tone appeared a little more even and clearer. Even on days when I wore light makeup, my skin looked less dull. However, these changes are personal observations based on my own skin condition.

Would I keep using it as a daily serum?


I especially liked its light texture and how it felt before makeup. It may be worth considering if you prefer hydration with little stickiness and a natural glow, and I am considering repurchasing it after I finish it.
Where to buy
- Tested
- 약 2주, 아침저녁
- 쿠팡
- '희다 세럼' 검색






