What does the AGE-R Glutathione Glow Toner 140ml actually contain?

Its ingredient list is led by Niacinamide, with the rest of the formula built to support that active rather than compete with it. We list the ingredients in the order the manufacturer prints them, so the ones near the top of the panel are doing the most work in the formula.

How do I use the AGE-R Glutathione Glow Toner 140ml?

Use this toner as the toning step right after cleansing. To apply, sweep across the face with a cotton pad or press in with clean hands after cleansing. Keep it to AM/PM unless the packaging states otherwise, and give the rest of the routine a moment to settle before layering the next step. Give it a full bottle or box before judging the result, since most Korean routines are built for steady use rather than a single application.

Is the AGE-R Glutathione Glow Toner 140ml the same formula sold in Korea, or a US version?

This AGE-R Glutathione Glow Toner 140ml is the Korean-market formula, not a version reformulated for US shelves. It arrives with its original Korean-market barcode and batch code intact so the formula can be checked against the box on arrival.

Can I use the AGE-R Glutathione Glow Toner 140ml with other actives in my routine?

Yes, as long as it is used in its own step, the toning step right after cleansing, and not layered on top of a product doing the same job. Introduce any new step gradually over the first week or two and keep an eye on how the skin responds before adding a second new active alongside it.

Who is the AGE-R Glutathione Glow Toner 140ml suited for?

It suits most skin types looking for toning step right after cleansing rather than a single acute problem. It comes in a 140ml format. Anyone with a known sensitivity to a specific ingredient should check the full ingredient panel on this page before buying.

Medicube

AGE-R Glutathione Glow Toner 140ml

Name: Medicube AGE-R Glutathione Glow Toner 140ml
Brand: Medicube
SKU: medicube1801
Price: 50.0 USD
Availability: InStock

Medicube AGE-R Glutathione Glow Toner 140ml is a toner that names Glutathione on its own ingredient panel, sourced as the Korean-market formula.

Reviewed by Nurcan Saglam, licensed dermo-cosmetic expert (Paris)

No reviews yet

$50.00

140 ml

$35.71 per 100 ml

Korean-market formula
Ships from California or direct from Korea
Korean barcode and batch code intact

Suited to: normal skincombination skindry skin

Helps with: uneven tone and dullnessgeneral day-to-day maintenance as part of a full routinea routine that wants a Korean-market step in this category

One-time purchase

$50.00

SubscribeSave 10%

$45.00

In stock. Arrives in 3 to 7 business days

You’re $100.00 away from free US shipping.

30-day returns
Free US shipping on orders of $100 or more
Tracked delivery to your door

Verified authentic Shipping and returns

How it works

Glutathione is named on the ingredient panel on this toner. Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it. On this panel it sits alongside Niacinamide, Borago Officinalis Extract and Centaurea Cyanus Flower Extract. Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.

Key benefits

Glutathione named on this product's own ingredient panel
Niacinamide on the same panel, the formula's active
Borago Officinalis Extract on the same panel, the formula's plant extract
140 ml to a unit
Korean GS1 barcode matched against a Korea sourcing supplier's record for this item

How to use

Use this toner as the toning step right after cleansing. To apply, sweep across the face with a cotton pad or press in with clean hands after cleansing. Keep it to AM/PM unless the packaging states otherwise, and give the rest of the routine a moment to settle before layering the next step.

1 of 6

44 of 46 explained

Water solvent: Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.
Triethylhexanoin emollient: Triethylhexanoin is a light ester emollient that softens skin and disperses pigment. It absorbs cleanly and is often used to thin a heavy oil phase.
Hydrogenated Poly(C6-14 Olefin) emollient: Hydrogenated Poly(C6-14 Olefin) is a synthetic hydrocarbon emollient. It gives a smooth, silicone-like glide and is completely stable, so it does not go rancid.
Butylene Glycol humectant: Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.
Niacinamide active: Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.
Methylpropanediol humectant: Methylpropanediol is a small glycol used to hydrate and to help water-soluble actives penetrate the outer layer of skin more evenly. It leaves almost no tack, which suits watery textures.
1,2-Hexanediol humectant: 1,2-Hexanediol is a glycol used for two reasons: it holds water like glycerin, and it makes a formula harder for microbes to live in, so less traditional preservative is needed. Korean formulas use it heavily for that second reason.
Phenyl Trimethicone silicone: Phenyl Trimethicone is a silicone with a higher refractive index than most, so it adds visible gloss as well as slip. It is common in glow and lip textures.
Diethoxyethyl Succinate solvent: Diethoxyethyl Succinate is a solvent that helps water-resistant actives spread and sink in evenly. It also leaves a light, silky feel.
Polyglyceryl-10 Myristate emulsifier: Polyglyceryl-10 Myristate is a mild sugar-derived emulsifier used to keep oil dispersed in a watery formula.
Borago Officinalis Extract plant extract: Borage extract. The plant is best known for the gamma-linolenic acid in its seed oil, while the water extract carries mucilage that holds water at the surface.
Centaurea Cyanus Flower Extract plant extract: Cornflower extract, a traditional eye-area ingredient in European pharmacy. It carries flavonoids and anthocyanins and is used in gentle formulas.

32 more explained

Chamomilla Recutita (Matricaria) Flower/Leaf Extract plant extract: German chamomile, taken from flower and leaf together. It carries bisabolol and the blue azulenes and is used for the look of reactive, reddened skin.
Hyacinthus Orientalis (Hyacinth) Extract plant extract: Hyacinth extract, used as a floral herbal extract. It is one of the less common botanicals to meet on a Korean label.
Salvia Sclarea (Clary) Extract plant extract: Clary sage extract, carrying flavonoids and tannins. It is the water-based extract and a different ingredient from clary sage essential oil.
Ethylhexylglycerin preservative booster: Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
Hibiscus Esculentus Fruit Extract plant extract: Hibiscus Esculentus is okra, whose fruit is thick with mucilage. Its extract hydrates and gives a cushioned, slippery feel.
Corchorus Olitorius Leaf Extract plant extract: Jute mallow leaf extract. The leaf is notably mucilaginous, so the extract holds water and gives a slippery feel.
Carum Petroselinum (Parsley) Extract plant extract: Parsley extract, carrying apigenin, vitamin C and minerals. It is used as a conditioning antioxidant extract.
Hexyl Cinnamal fragrance component: Hexyl Cinnamal is a jasmine-like aromatic. It is one of the 26 fragrance components EU labelling requires to be named individually.
Limonene fragrance component: Limonene is the citrus-peel aromatic. It appears here because EU labelling requires 26 fragrance components to be named individually rather than hidden inside "fragrance", and it is one of them.
Linalool fragrance component: Linalool is a floral aromatic found in lavender, bergamot and coriander. It is one of the 26 fragrance components EU labelling requires to be declared by name.
Fragrance fragrance: Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
Hippophae Rhamnoides Oil emollient: Sea buckthorn oil, deep orange from its carotenoid content, which is often why a formula carrying it has a colour nobody added. It is high in the unusual fatty acid palmitoleic acid.
Allantoin active: Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin.
Hydrogenated Lecithin emulsifier: Hydrogenated Lecithin is lecithin with its unsaturated bonds filled in, which makes it far more stable. It emulsifies and is the standard shell for the liposomes that carry actives into the outer layer of skin.
Sodium Gluconate chelator: The sodium salt of gluconic acid, used to tie up trace metals so a formula stays stable. It is one of the gentler chelators.
Glutathione antioxidant: Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it.
Adenosine active: Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated.
Cellulose Gum thickener: Cellulose Gum is plant cellulose modified to dissolve in water. It thickens, holds particles in suspension and gives a smooth, slippery body.
Melia Azadirachta Leaf Extract plant extract: Melia Azadirachta is neem. Its leaf and flower extracts are long-standing Ayurvedic ingredients, and Korean formulas use them in products aimed at the look of congested, blemish-prone skin.
Curcuma Longa (Turmeric) Root Extract plant extract: Turmeric Root Extract carries curcuminoids, well studied plant antioxidants. It is used for the look of dullness and uneven tone, and it tints a formula faintly yellow.
Ocimum Sanctum Leaf Extract plant extract: Ocimum Sanctum is holy basil, or tulsi. Its leaf extract carries plant antioxidants and is used in formulas built for the look of stressed, reactive skin.
Corallina Officinalis Extract plant extract: Corallina Officinalis is coral seaweed, which holds calcium and magnesium in its structure. Its extract is used as a mineral-rich conditioning ingredient.
Biotin vitamin: Biotin is vitamin B7. In skincare it is a conditioning vitamin, most often in hair and scalp formulas.
Biotinoyl Tripeptide-1 peptide: A three-amino-acid peptide joined to biotin, vitamin B7. It is the peptide most used in lash, brow and scalp formulas.
Acetyl Hexapeptide-8 peptide: Acetyl Hexapeptide-8 is a six-amino-acid peptide used for the look of expression lines, particularly around the eyes. It is the peptide sold under the name Argireline and is water soluble and stable.
Tripeptide-1 peptide: Tripeptide-1 is the copper-free version of the classic three-amino-acid peptide. It is used for the look of firmness in formulas that avoid copper's blue tint.
Tripeptide-3 peptide: Tripeptide-3 is a three-amino-acid peptide used in multi-peptide blends. It turns up in hair and scalp formulas as often as in facial ones.
Myristoyl Pentapeptide-17 peptide: A five-amino-acid peptide with a myristic acid tail. It is the peptide used in lash and brow formulas for the look of fuller hair.
Hexapeptide-9 peptide: Hexapeptide-9 is a six-amino-acid peptide used for the look of firmness and elasticity. It is water soluble and appears in peptide blends rather than alone.
Gluconolactone exfoliant: Gluconolactone is a PHA, the gentlest exfoliant class. Its molecule is too large to penetrate quickly, so it smooths the surface without the sting of an AHA, and it is a humectant at the same time.
Alpha-Arbutin active: Alpha-Arbutin is a plant-derived compound, related to the sugar-bound form found in bearberry, used for the look of dark spots and uneven tone. It is stable in water and works at skin-friendly pH.
Thioctic Acid antioxidant: Thioctic Acid is alpha lipoic acid, an antioxidant that dissolves in both water and oil, which is unusual. It is yellow and carries a faint sulfur smell.

Inside the formula

Ingredients declared

#24

Fragrance on the list

Worth knowing

Patch test on the inner arm before the first full-face application, especially on skin that reacts easily to new products.
Stop use and rinse off if stinging, burning, or new redness shows up rather than pushing through discomfort.

Complete the routine

This itemMedicube AGE-R Glutathione Glow Toner 140ml$50.00
Prep after cleansing, before the treatment stepmedicube Triple Collagen Toner 4.0 140ml$31.00
Seal the routine in as the last stepmedicube Zero Pore Cream 2.0 50ml$30.00

Total for 3 items$111.00

Reviews

No reviews yet. Tell us how much you love the product!

Write a review

medicube AGE-R Glutathione Glow Toner 140ml

How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.

Read every customer review

We’re on gram!

Creators trying on authentic Korean skincare routines and products from us.

Watch on YouTube
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Watch on YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
Watch on YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
Watch on YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
Watch on YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
Watch on YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube

Medicube, Korean-market original

Medicube's Korean-market toner led by Niacinamide, the same formula sold in Korea.

Verify your unit when it arrives

Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.

Medicube prints a QR code on the inner box. Scan it with your phone camera and it resolves to the brand’s own verification site.

Verify on medicubeverify.com →

Source: Medicube packaging and verification site

On the unit itself

The Korean-market barcode, unaltered from the retail package.
The manufacturer’s batch code, exactly as the maker printed it.

정품Genuine article, Korean-market stock

What professionals say

What skin-care professionals say about skin care, quoted from the medical sources linked beside each.

Your skin barrier is basically your outer layer of the skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic
Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic