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

- By Saejin (https://superchart.com/en/@compact-case-observations/)
- Written Dec 19, 2025
- Updated Sep 11, 2026
- Products › Beauty products
- Product provided: I received this product to try. [type=provided]
- English edition: https://superchart.com/en/@compact-case-observations/heeda-glutathione-serum-combination-skin-e1a7/
- Also in: [한국어](https://superchart.com/ko/@compact-case-observations/heeda-glutathione-serum-combination-skin-e1a7/index.md)

## 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.

## 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](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin-e1a7/heeda-glutathione-serum-combination-skin-01-1snbo-1200.webp)

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](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-02-1kcih-966.webp)

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](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-03-l1rmv-966.webp)

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

![Glutathione serum for combination skin, 2-week test: HEEDA](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-04-1aii8-966.webp)

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](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-05-vsoch-966.webp)

![Glutathione serum for combination skin, 2-week test: HEEDA](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-06-1xooh-966.webp)

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](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-07-yrubv-966.webp)

## What skin concerns did I consider it for?

![Glutathione serum for combination skin, 2-week test: HEEDA](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-08-pbuif-966.webp)

- 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](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-09-1xakg-966.webp)

## Would I keep using it?

![Glutathione serum for combination skin, 2-week test: HEEDA](https://img.superchart.com/images/heeda-glutathione-serum-combination-skin/heeda-glutathione-serum-combination-skin-10-lfzug-966.webp)

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.

## Products

- HEEDA Glutathione High-End Glow Radiance Serum — HEEDA
- 2주, 매일 아침저녁
- 쿠팡 — '희다 세럼' 검색 후 구매

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Superchart · https://superchart.com/en/@compact-case-observations/heeda-glutathione-serum-combination-skin-e1a7/ · https://superchart.com/llms.txt