MAXCLINIC
Pro Hyaluron Toner 320ml$65.00Acni Dr. 1st Control Tonic 130ml
isoi Acni Dr. 1st Control Tonic is a 130ml toner with Allantoin, used straight after cleansing, morning and evening, while the face is still damp.
No reviews yet130 ml
$38.46 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalCombinationDryOily
- Helps with
- A prepped base for the rest of the routineEveryday hydration
In stock. Arrives in 3 to 7 business days
We accept
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
How it works
The Acni Dr. 1st Control Tonic is a 130ml toner, used straight after cleansing, morning and evening, while the face is still damp. The active it is built around is Allantoin, named ninth on its own ingredient list. The same list carries Beta-Glucan, Olea Europaea (Olive) Leaf Extract and Centella Asiatica Extract, so the active is not the only thing on it worth naming. How much of the Allantoin stays on the skin, and for how long, is decided by the toner format rather than by the list alone. isoi sells this Allantoin toner in Korea, and this is that version.
Key benefits
- Allantoin, the active this toner is built around
- Beta-Glucan on the same list, a polysaccharide
- Olea Europaea (Olive) Leaf Extract, Centella Asiatica Extract and Glycyrrhiza Glabra (Licorice) Root Extract on the same list, plant extracts
- Equisetum Arvense Extract and Houttuynia Cordata Extract further down the same list
- Castanea Crenata (Chestnut) Shell Extract and Scutellaria Baicalensis Root Extract further down the same list
- Allantoin named ninth on the manufacturer list printed on this page
Key actives
9Allantoinactive
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. On this toner's own ingredient list it is named ninth.
12Olea Europaea (Olive) Leaf Extractplant extract
Olive leaf extract, carrying oleuropein. It is used as a plant antioxidant, and it is a different ingredient from the pressed fruit oil. It is named twelfth on this toner's list, alongside Allantoin.
13Centella Asiatica Extractplant extract
Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid. It is named thirteenth on this toner's list, alongside Allantoin.
14Beta-Glucanpolysaccharide
Beta-Glucan is a polysaccharide from oats or yeast. It holds a large amount of water, forms a soothing film, and is one of the ingredients formulators reach for in products aimed at reactive skin. The panel names it fourteenth on this toner's list, beside Allantoin.
15Glycyrrhiza Glabra (Licorice) Root Extractplant extract
Licorice Root Extract carries glabridin and liquiritin. It is one of the classic plant ingredients used for the look of uneven tone and redness, and it appears in almost every brightening formula that avoids synthetic actives. It is named fifteenth on this toner's list, alongside Allantoin.
All products with Glycyrrhiza Glabra (Licorice) Root Extract
Where does this toner go in my routine?
Straight after cleansing, morning and evening, while the face is still damp. Anything thinner than a toner goes on before it, and anything richer goes on after. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Allantoin and not three changes at once.
Does this toner contain fragrance?
Yes. The ingredient list names Citronellol and Geraniol. They sit on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this toner is not the one.
What else is on the list besides Allantoin?
Beta-Glucan, Olea Europaea (Olive) Leaf Extract and Centella Asiatica Extract. The order they are printed in on this toner's panel is the order on the box, so you can see where Allantoin sits relative to them. Further down the same panel: Glycyrrhiza Glabra (Licorice) Root Extract, Equisetum Arvense Extract and Houttuynia Cordata Extract.
Not on the ingredient list below: fragrance or parfum, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (24): Water, Rosa Damascena Flower Water, Glycerin, Butylene Glycol, Ethanol, Cuscuta Australis Seed Extract, Rosa Damascena Flower Oil, Mannan, Allantoin, Sodium Hyaluronate, Salix Alba (White Willow) Leaf Extract, Olea Europaea (Olive) Leaf Extract, Centella Asiatica Extract, Beta-Glucan, Glycyrrhiza Glabra (Licorice) Root Extract, Equisetum Arvense Extract, Brassica Campestris (Rapeseed) Extract, Houttuynia Cordata Extract, Castanea Crenata Shell Extract, Rhus Semialata Gall Extract, Scutellaria Baicalensis Root Extract, Paeonia Suffruticosa Root Extract, Citronellol, Geraniol
Ingredient list read from isoi.co.kr on 30 August 2026.
19 of 24 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.
- Rosa Damascena Flower Water plant extract
- Rosa Damascena Flower Water is the water left from distilling rose petals. It is used in place of plain water as a base and carries the scent and trace compounds of the distillation.
- Glycerin humectant
- Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.
- 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.
- Ethanol solvent
- Alcohol here means ethanol. It dissolves ingredients water cannot, evaporates fast so a formula sets quickly and does not feel heavy, and thins texture. In quantity it can leave dry or reactive skin feeling tight, which is why many Korean formulas avoid it and some deliberately use it for a fast, weightless finish.
- Rosa Damascena Flower Oil fragrance component
- Rosa Damascena Flower Oil is rose essential oil, one of the most expensive materials in perfumery. It scents a formula, and like every essential oil it is a class reactive skin often does not tolerate.
- 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.
- Sodium Hyaluronate humectant
- Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it.
- Olea Europaea (Olive) Leaf Extract plant extract
- Olive leaf extract, carrying oleuropein. It is used as a plant antioxidant, and it is a different ingredient from the pressed fruit oil.
- Centella Asiatica Extract plant extract
- Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid.
- Beta-Glucan polysaccharide
- Beta-Glucan is a polysaccharide from oats or yeast. It holds a large amount of water, forms a soothing film, and is one of the ingredients formulators reach for in products aimed at reactive skin.
- Glycyrrhiza Glabra (Licorice) Root Extract plant extract
- Licorice Root Extract carries glabridin and liquiritin. It is one of the classic plant ingredients used for the look of uneven tone and redness, and it appears in almost every brightening formula that avoids synthetic actives.
7 more explained
- Equisetum Arvense Extract plant extract
- Horsetail extract, the plant richest in plant-bound silica. It is used as a conditioning, mineral-bearing extract.
- Houttuynia Cordata Extract plant extract
- Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin.
- Castanea Crenata Shell Extract plant extract
- Chestnut Shell Extract carries tannins and is used as an antioxidant plant extract, most often in formulas aimed at visible pores.
- Scutellaria Baicalensis Root Extract plant extract
- Scutellaria Baicalensis is Chinese skullcap. Its root extract carries baicalin, a well studied plant antioxidant, and it is used for the look of redness.
- Paeonia Suffruticosa Root Extract plant extract
- Paeonia Suffruticosa is tree peony, a long-standing East Asian medicinal plant. Its root extract carries paeoniflorin and is used for the look of reddened skin.
- Citronellol fragrance component
- Citronellol is a rose-geranium aromatic and one of the 26 fragrance components EU labelling names individually.
- Geraniol fragrance component
- Geraniol is a rose-scented aromatic found in geranium and citronella oils. It is one of the 26 declarable fragrance components.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 130 ml
- Category
- Toner
- Ships from
- California or Korea
Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Every order ships from California or direct from Korea, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Inside the formula
Inside the formula
- 9Allantoin
- 12Olea Europaea
- 14Beta-Glucan
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
How to use
- Pat or sweep onto clean skin right after cleansing, morning and night, before serum or moisturizer, to prep the skin for what follows.
Worth knowing
- Introduce once daily first if new to the formula, then move to twice daily.
Complete the routine
- This itemisoi Acni Dr. 1st Control Tonic 130ml$50.00

- The treatment step of this routineisoi Bulgarian Rose Blemish Care Spot 25ml$45.00

- Seal the routine in as the last stepisoi Bulgarian Rose Intensive Treatment Lotion 90ml$95.00

Total for 3 items$190.00
Reviews
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isoi Acni Dr. 1st Control Tonic 130ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
isoi, Korean-market original
The Original Korean Formula toner from isoi, 130ml formulated with Allantoin and Beta-Glucan, shipped from California or direct from Korea.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
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 professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
Allantoin can tone down the dryness of the individual cells. It increases the water content of the skin, which means it helps to hydrate and moisturize.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic It can be especially useful for skin that is easily irritated or prone to redness, including conditions such as rosacea, eczema and contact dermatitis.
Derrick Phillips, MDConsultant dermatologist, Vogue
1 more professional perspective
Centella can make your skin appear more hydrated, plumper and healthier.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic
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