# Brightening serum for dehydrated oily skin: HEEDA Glutathione Tone Care Serum

- By Gildam (https://superchart.com/en/@gildam-notes/)
- Written Sep 3, 2026
- Updated Sep 11, 2026
- Products › Beauty products
- Product provided: I received this product to use. [type=provided]
- English edition: https://superchart.com/en/@gildam-notes/heeda-glutathione-serum-lightweight-daily-5c97/
- Also in: [한국어](https://superchart.com/ko/@gildam-notes/heeda-glutathione-serum-lightweight-daily-5c97/index.md)

## In short

This is a 30ml brightening serum from HEEDA, used morning and night by a writer with dehydrated oily skin in Korea. It felt light and worked well before makeup, but the 30ml bottle may run out in about a month when applied generously.

## Good to know

- **Product**: HEEDA Glutathione Brightening Tone Care Serum 30ml
- **Volume**: 30ml (1 count)
- **Key ingredients**: Liposomal glutathione, niacinamide
- **Skin type used**: Dehydrated oily skin
- **How it was used**: After cleansing morning and night, including before makeup
- **Where to buy**: Coupang

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

## How did the texture feel on dehydrated oily skin?

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-01-1479o-900.webp)

Because I have dehydrated oily skin, too much oiliness can cause breakouts, while severe inner dryness can make my complexion look dull. This product had a clear, transparent essence texture and did not run excessively when I dropped it onto the back of my hand.

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-02-up1sd-900.webp)

It spread lightly when I smoothed it on with my fingers. After cleansing, I felt almost no sticky residue or oily sensation. For me, it left a hydrated finish.

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-03-nf388-900.webp)

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily-5c97/heeda-glutathione-serum-lightweight-daily-04-6mdhm-1200.webp)

## How did I use it in my morning and evening skincare routine?

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-05-ehnvk-900.webp)

After cleansing with a mildly acidic cleanser, I used a watery toner to refine my skin texture, then applied the serum. I placed one drop each on both cheeks and my forehead, spread it along my skin texture, and finished with the hydrating or moisturizing cream I normally use.

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-06-sp535-900.webp)

In the morning, I used it before makeup. In my experience, it did not pill or cause my makeup to slide. I also used it to leave my skin hydrated and smooth before foundation.

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-07-1gexc-900.webp)

## What were the drawbacks of the size while using it?

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-08-o2mqq-900.webp)

The bottle contains 30ml. The dropper bottle was easy to use, but I felt that one bottle could be finished in around a month if applied generously to both cheeks, the forehead, and the neck morning and night. I was left wishing there were a larger-size option.

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-09-1bv3z-900.webp)

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-10-1pa7z-900.webp)

## What did I keep in mind while using it?

![Brightening serum for dehydrated oily skin: Heeda Glutathione Tone Care Serum](https://img.superchart.com/images/heeda-glutathione-serum-lightweight-daily/heeda-glutathione-serum-lightweight-daily-11-13zcg-900.webp)

I also used sunscreen as the last step of my morning routine. Skin condition and product feel vary from person to person, so it is best to watch how your own skin responds when using a new product.

## Products

- Heeda Glutathione Brightening Tone Care Serum 30ml (1 count) — HEEDA
- 쿠팡 — ‘희다 세럼’ 검색 후 구매로 안내됨

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