Where does the serum go in my routine?

Apply it after cleansing and toner, then follow with moisturizer. If you use a thinner watery essence, apply that first; heavier creams and facial oils come later. Pat a small amount over the face and neck rather than rubbing repeatedly. In the morning, let each layer settle before sunscreen and makeup.

Can I use it morning and evening?

MEDICUBE positions it as gentle enough for daily use, and it can fit either a morning or evening routine. Start once daily when introducing it, especially if you already use several tone-focused products. Increase only if the complete formula stays comfortable. Daytime use always finishes with broad-spectrum sunscreen; this serum has no SPF role.

What does Glutathione Liposome 5% mean compared with 500ppm?

The bottle's 5% statement names MEDICUBE's marketed Glutathione Liposome complex. The official ordered formula separately lists Glutathione(500ppm). Those declarations are not interchangeable, so 5% should not be read as 5% pure glutathione. This page keeps both labels in their original context and does not convert one into the other.

How quickly were the visible results measured?

MEDICUBE reports serum-alone measurements after four weeks. Its paired Booster-H table reports glow and line-appearance measurements after four weeks, plus blemish, melanin and rough-texture measurements immediately after four uses. Those are study schedules and group outcomes, not a guaranteed personal timeline. Check each Real Result for its exact use condition.

Will the Glutathione Glow Serum feel sticky on oily skin?

It is more viscous than a watery essence because MEDICUBE designed it to provide slip for optional device use. Many shoppers describe easy absorption, while some report stickiness or an oily feel. Begin with a small amount, let it settle before the next layer and avoid adding extra simply to keep the device moving.

Is it fragrance-free or suitable for sensitive skin?

No fragrance-free claim is made here because the current ingredient list includes Flavor. MEDICUBE reports a primary patch test, but that does not guarantee comfort for every person or every sensitivity. Patch test first, introduce the serum without several other new products and stop if persistent burning, swelling, itching or redness develops.

Why is this bottle 30g when MEDICUBE now shows 50ml?

This listing is for the 30g / 1.05 oz brown bottle shown in the gallery and stored in the published variant. MEDICUBE's current direct page now shows a 50ml package under the same product name. Packaging and formulas can change between production runs, so compare the ingredient list on your own bottle when batch-specific details matter.

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MEDICUBE

MEDICUBE AGE-R Glutathione Glow Serum 30g

Visible glow
Moisture cushion
Smooth look
Device friendly

30g ·$19.99 USD

Visible glow

Moisture cushion

Smooth look

Device friendly

PRODUCT DETAILS

MEDICUBE AGE-R Glutathione Glow Serum is a 30g daily serum for dullness, uneven-looking tone and rough-looking texture. Apply it after toner when you want a hydrated, light-reflective finish, then seal it in with moisturizer. It can be used on its own; a MEDICUBE device is optional.

The current formula pairs niacinamide with Glutathione(500ppm), adenosine, Bifida Ferment Lysate and Soluble Collagen. Glycerin, betaine, panthenol, squalane, beta-glucan and several hyaluronic materials build the moisture-supporting side of the formula, helping the surface feel cushioned while the tone-focused ingredients support a fresher, more even-looking finish.

MEDICUBE also designed the serum's viscosity for Booster-H. Its same-product testing reports separate outcomes for serum used alone and for serum paired with the device, so those conditions stay distinct in the Real Results section. You do not need the device to fit this serum into a regular morning or evening routine.

The serum has a more substantial slip than a watery essence. Begin with a small amount, especially on oily areas or under makeup, and add more only where needed. The ingredient list includes Flavor, so fragrance-reactive shoppers should patch test. Use sunscreen in the morning and stop if persistent stinging, redness or swelling develops.

Learn more

GOES WELL WITH

ANUA Peach 77 Niacin Essence Toner 250ml$16.99 USD

BEAUTY OF JOSEON Ground Rice and Honey Glow Mask 150ml$11.99 USD

ANUA Niacinamide 5 + TXA Brightening Pad 210ml (60 pads)$19.99 USD

Beauty of Joseon Ginseng Essence Water 150ml$11.99 USD

Anua Rice 70 Glow Milky Toner 250ml$15.99 USD

Banila Co Clean It Zero Cleansing Balm Original 100ml$17.99 USD

ANUA Rice Enzyme Brightening Cleansing Powder 40g$13.99 USD

Beauty of Joseon Glow Replenishing Rice Milk 150ml$11.99 USD

Tone-focused ingredients, moisture support and flexible device pairing make this a practical daily glow serum.

More even-looking tone
Visible daily glow
Moisture cushion
Smoother-looking texture
Standalone or device use

Key Ingredients

Niacinamide

Helps visibly brighten uneven tone and support the skin barrier.

Pleated lavender paper fan with a coral-red edge on a pale blush surface.

Adenosine

A skin-conditioning ingredient commonly used to help skin look smoother and soften the appearance of fine lines.

Clear hydrogel spheres and droplets on a pale lilac background.

Hyaluronic Acid

Helps hydrate and visibly plump the skin.

Real Results

9%Increase in measured skin glow after 4 weeks with Booster-H¹
8%Decrease in measured melanin immediately after 4 uses with Booster-H¹
8%Decrease in measured rough skin texture immediately after 4 uses with Booster-H¹
5%Decrease in measured blemish appearance immediately after 4 uses with Booster-H¹
4%Decrease in measured dark spots and blemishes after 4 weeks using serum alone

Brown MEDICUBE Glutathione Glow Serum 30g dropper bottle standing against a black background.

Concerns & Benefits

Your Concerns

1
Dull Skin
A flat-looking finish that reflects less light even after the rest of the routine.
2
Pigmentation
Visible spots or uneven-looking areas that make the overall tone appear less balanced.

How To Use

1After cleansing and toner, dispense a small amount and spread it evenly over the face and neck. Pat until the serum begins to settle, then follow with moisturizer.
2For Booster-H use, apply an even layer to the target area and a small amount to the device heads, then operate the device exactly as its own guide directs. Add only enough serum to maintain comfortable slip; do not invent a stronger device setting because the serum feels thick.
3Use morning or evening as comfortable. Begin once daily when introducing the formula, use less beneath makeup or on oily areas, and finish daytime routines with broad-spectrum sunscreen.

Frequently asked questions

Can I use MEDICUBE Glutathione Glow Serum without Booster-H?

Yes. The serum works as a normal leave-on step after toner and before moisturizer. MEDICUBE publishes standalone serum results as well as separate results from pairing it with Booster-H. Use the device only if you already own it and follow its operating instructions; the serum does not require a device to be used.

Keep learning

Customer reviews

Frequently Bought Together

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This itemMEDICUBE AGE-R Glutathione Glow Serum 30g$19.99 USD

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BEAUTY OF JOSEON Ground Rice and Honey Glow Mask 150ml$11.99 USD

Total price: $48.97 USD

This itemMEDICUBE AGE-R Glutathione Glow Serum 30g$19.99 USD

ANUA Peach 77 Niacin Essence Toner 250ml$16.99 USD

BEAUTY OF JOSEON Ground Rice and Honey Glow Mask 150ml$11.99 USD

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$11.99 USD

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A water-light daily essence with ginseng water and niacinamide for comfortable hydration and a fresh-looking glow.

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$15.99 USD

BANILA CO

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MEDICUBE Glutathione Glow Serum 30g | Sleepy Hello

MEDICUBE

MEDICUBE AGE-R Glutathione Glow Serum 30g

Visible glow
Moisture cushion
Smooth look
Device friendly

MEDICUBE AGE-R Glutathione Glow Serum 30g

30g ·$19.99 USD

Visible glow

Moisture cushion

Smooth look

Device friendly

PRODUCT DETAILS

Learn more

GOES WELL WITH

ANUA Peach 77 Niacin Essence Toner 250ml$16.99 USD

BEAUTY OF JOSEON Ground Rice and Honey Glow Mask 150ml$11.99 USD

ANUA Niacinamide 5 + TXA Brightening Pad 210ml (60 pads)$19.99 USD

Beauty of Joseon Ginseng Essence Water 150ml$11.99 USD

Anua Rice 70 Glow Milky Toner 250ml$15.99 USD

Banila Co Clean It Zero Cleansing Balm Original 100ml$17.99 USD

ANUA Rice Enzyme Brightening Cleansing Powder 40g$13.99 USD

Beauty of Joseon Glow Replenishing Rice Milk 150ml$11.99 USD

Tone-focused ingredients, moisture support and flexible device pairing make this a practical daily glow serum.

More even-looking tone
Visible daily glow
Moisture cushion
Smoother-looking texture
Standalone or device use