Glutathione serum for sensitive skin, 3-day test: HEEDA

In short

HEEDA Glutathione Serum is a Korean brightening serum that I used on sensitive skin, morning and night for three days. It felt light, absorbed without stickiness, and seemed to reduce post-cleanse tightness, but I think it is too early to judge any tone change.

Glutathione serum for sensitive skin, 3-day test: Heeda

Good to know

Product
HEEDA Glutathione Brightening Tone Care Glow Serum, 1 count, 30 ml
Test period
3 days, morning and night
Skin type
Sensitive skin
Where to buy
Search “HEEDA serum” on Coupang

Prices as written by the tester on Sep 3, 2026 · not updated automatically

Was there any irritation after using it on sensitive skin for three days?

Glutathione serum for sensitive skin, 3-day test: Heeda

I have sensitive skin and am concerned about tightness after cleansing, a dull complexion, and dark circles. Because sticky serums have sat on top of my skin before, I had been skipping the serum step and using only cream.

Glutathione serum for sensitive skin, 3-day test: Heeda

I worried that a new product might sting or cause redness, but I did not notice redness or irritation while using it morning and night for three days. Still, this is only my personal experience over a short period.

Glutathione serum for sensitive skin, 3-day test: Heeda

How are the texture and stickiness?

Glutathione serum for sensitive skin, 3-day test: Heeda

It has a watery texture, so it felt light when I dispensed it onto my hand and absorbed quickly after application. There was none of the stickiness I had worried about most, and my skin felt soft after it absorbed.

Glutathione serum for sensitive skin, 3-day test: Heeda

When I looked up the ingredients, I found liposomal glutathione and niacinamide. Since I had concerns about my skin tone, having both ingredients was one reason I chose it.

Glutathione serum for sensitive skin, 3-day test: Heeda
Glutathione serum for sensitive skin, 3-day test: Heeda

How did it feel before makeup and after cleansing?

Glutathione serum for sensitive skin, 3-day test: Heeda

The first thing I noticed was less tightness after cleansing. Before, my skin felt tight enough that I had to apply something immediately, but that feeling was reduced after using it. When I applied lotion after the serum, the lotion also seemed to absorb better.

Glutathione serum for sensitive skin, 3-day test: Heeda

It is fragrance-free, so I could use it comfortably in the morning. The dropper let me dispense only the amount I needed, and my makeup did not pill when I applied it afterward.

Glutathione serum for sensitive skin, 3-day test: Heeda

Can you tell whether skin tone changed after three days?

Glutathione serum for sensitive skin, 3-day test: Heeda

My skin seemed to have a glow, and my complexion felt a little brighter. But since it was only day three, I think it is too early to make a definite judgment about tone changes. I ended up using about three full droppers each time, so with its 30 ml size, I may use it up relatively quickly at my rate of use.

Glutathione serum for sensitive skin, 3-day test: Heeda

For someone like me who hesitated to use serum because of stickiness, it was easy to add to my routine. However, I plan to judge tone changes after using another bottle.

Where to buy

HEEDA · Heeda Glutathione Brightening Tone Care Glow Serum, 1 count, 30 ml희다 글루타치온 미백 톤케어 광채 세럼 1개 30mlPrices as written by the tester on Sep 3, 2026 · not updated automatically
Tested
3일, 아침저녁
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