Glutathione serum for combination skin, 2-week test: HEEDA

In short

HEEDA Glutathione High-End Glow Radiance Serum is a Korean skincare serum that I used morning and night for two weeks on combination skin with an oily T-zone and dry U-zone. Its watery texture and wear under makeup worked well for me, and I personally felt my tone looked more even and my skin had a lasting inner glow.

Glutathione serum for combination skin, 2-week test: HEEDA

Good to know

Product
HEEDA Glutathione High-End Glow Radiance Serum
Testing period
2 weeks, every morning and evening
Skin type
Combination skin (oily T-zone, dry U-zone)
Where to buy
Search “HEEDA serum” on Coupang

Prices as written by the tester on Dec 19, 2025 · not updated automatically

How did it feel on combination skin?

Glutathione serum for combination skin, 2-week test: HEEDA

I have combination skin: my T-zone gets oily easily while my U-zone is dry, so sticky serums tend to feel suffocating. This had a watery texture that spread as lightly as water and seemed to adhere transparently to my skin.

Glutathione serum for combination skin, 2-week test: HEEDA

Even when I applied it before morning makeup, it did not pill for me. It absorbed lightly, and I felt less tightness in my U-zone, so it was comfortable to use during dry periods.

Glutathione serum for combination skin, 2-week test: HEEDA

What did I notice after using it morning and night for two weeks?

Glutathione serum for combination skin, 2-week test: HEEDA

I used it every morning and evening for two weeks. Areas where dullness and blemishes had concerned me personally looked a little more refined, and my overall skin tone felt relatively more even. The dark spots I had been concerned about after sun exposure while running also seemed to fade, but this is my personal experience.

Glutathione serum for combination skin, 2-week test: HEEDA
Glutathione serum for combination skin, 2-week test: HEEDA

What I liked most was that, rather than leaving only a surface shine, it gave my makeup base a clear-looking inner glow that lasted. My U-zone also felt hydrated without tightness throughout the day.

Glutathione serum for combination skin, 2-week test: HEEDA

What skin concerns did I consider it for?

Glutathione serum for combination skin, 2-week test: HEEDA
  • When looking for a lightweight serum with less stickiness
  • When both T-zone oiliness and U-zone dryness are a concern
  • When looking for a fresh texture to use before makeup
  • When wanting to add hydration during a dry season
Glutathione serum for combination skin, 2-week test: HEEDA

Would I keep using it?

Glutathione serum for combination skin, 2-week test: HEEDA

The brown glass bottle and dropper made it easy to control the amount. The product description’s emphasis on glutathione and niacinamide was also one reason I chose it, and since its fresh feel and hydration suited me well, I plan to keep using it.

Where to buy

HEEDA · HEEDA Glutathione High-End Glow Radiance Serum희다 글루타치온 하이엔드 글로우 광채 세럼Prices as written by the tester on Dec 19, 2025 · not updated automatically
Tested
2주, 매일 아침저녁
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