Glutathione serum for dehydrated oily skin: HEEDA 2-week test
In short
I used HEEDA Glutathione High-End Glow Radiance Serum morning and night for two weeks on dehydrated oily skin with a weak skin barrier. Its lightweight feel and smooth wear under makeup worked well for me, while I plan to watch changes in tone and dark spots longer.

Good to know
- Product
- HEEDA Glutathione High-End Glow Radiance Serum
- Testing period
- 2 weeks
- Skin type
- Dehydrated oily skin with a somewhat weak skin barrier
- Where to buy
- Search “HEEDA serum” on Naver
Prices as written by the tester on Dec 2, 2025 · not updated automatically
How did it feel on dehydrated oily skin with a weak barrier?


I tried a glutathione serum because dark spots concerned me after sun exposure. I have dehydrated oily skin and a somewhat weak skin barrier, so I am careful when choosing new products, but I did not feel irritation while using it.

It had a light, refreshing water-glow texture. It did not feel like it sat on my skin or leave much stickiness, and it did not pill even when I used it before morning makeup.


How did my skin tone and dark spots feel after two weeks?

After using it for about two weeks, my previously dull-looking complexion seemed a little clearer, with an overall impression of being about one shade brighter. When I looked in the mirror, my skin also seemed to have a natural glow.


The dark spots around my cheeks personally seemed to fade a little, but I thought changes in pigmentation needed to be monitored over a longer period. These days, my face seems brighter even with just the serum, so I reach for tone-up cream less often.


Can I use it morning and night and before makeup?

I incorporated it into both my morning and evening routines. On days when my face felt dry and rough, I applied a slightly more generous amount at night before bed, and it felt less dry and rough the next day. When I used it before makeup, my foundation tended not to lift and instead adhered smoothly to my skin.


If you are looking for a lightweight serum to apply daily, my experience may be useful. Still, my observations about changes in skin tone and dark spots are personal impressions from two weeks, so I plan to keep using it and monitor them longer.
Where to buy
- Tested
- 2주, 아침저녁
- 네이버
- ‘희다 세럼’ 검색 후 구매






