Koh Gen Do
Koh Gen Do Brush Cleaner, 150ml
Koh Gen Do Brush Cleaner, 150ml
@cosme rating: 5.2/7.0
A brush cleaner that is gentle on both skin and brushes
✓ 100% authentic
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
Introducing a foam-type brush cleaner from Koh Gen Do, a professional in "creating beautiful skin. " With excellent cleaning power, quick-drying and antibacterial properties that can be used every day, it keeps your brushes clean and long-lasting while still feeling smooth when used. Simply mix the foam with a dirty brush in a circular motion to quickly remove foundation oils, stubborn makeup stains, sebum, sweat, etc. When the foam disappears, it is a sign that the dirt has been removed. It can be used approximately 75 times with a thin brush and approximately 60 times with a thick brush. It dries quickly and can be used every day with ease. Contains antibacterial ingredients to prevent the growth of germs and keep the brush clean. Contains antistatic ingredients to prevent dust and other particles from adhering.
Ingredients
How to use
When using for the first time, empty the pump several times until the contents come out. Dispense some foam into the palm of your hand, dip a dry brush into the foam, and rub it in with a circular motion to mix the product. The recommended amount to use is 2-3 pumps for a thin brush and 3-4 pumps for a thick brush. When the foam disappears, it means the dirt has been removed, so rinse with water or lukewarm water. If you use a brush that is not very dirty, the foam may not disappear completely. Thoroughly drain the water, wipe off any excess water with a towel or tissue paper, reshape the brush, and dry it in the shade. Use the brush only after it has completely dried.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. We only buy from official retailers and directly from the brands here in Japan. Never resellers, never grey market stock.
We are beauty lovers too, so we know the worry, especially with something you are putting on your face. Authenticity is 100% guaranteed by us.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.
It's so easy to wash, it makes me want to take good care of my hair. Natural bristle brushes are a pain to clean, so I took this opportunity to switch to nylon brushes and wash them more frequently. Recently, there are more brushes that feel good on the skin, even if they're not natural bristle.
The foam type makes it easy to clean the brush!
I think it removes makeup well. The bristles of the brush don't become frizzy. However, the cleaner smell doesn't go away. The cleaner smell comes from the thin brush I use for my face and nose, which honestly puts me off a little. It's a foam type, which is convenient, but I tend to use too much, so I think it's not cost-effective for someone like me who likes to wash my face frequently. I won't be buying it again.
I bought it thinking it was a brush cleaner I could use every day. But it was meant to be used for washing (tears). I decided to give it a try. The cleaner I usually use doesn't lather, so this one creates a fluffy lather that really reaches the depths of the brush. When I rinsed it, the brush felt squeaky, so I was worried it would ruin the brush, but it dried up nice and fluffy. It seemed to dry faster than the usual ones. It has no scent, so I think it's easy to use.
I use a different brush cleaner every time I use it daily. This is for rinsing when the bristles start to get tangled even after daily cleaning. It comes out as a unique foam; I dispense the prescribed amount into my palm and swirl the brush around in my palm. The foam disappears when it disappears, which is said to be the end of cleaning. It cleans light dirt and smaller brushes perfectly in one wash. I wash oily concealer and foundation brushes twice if they're bothersome, but I generally do my daily care and wash them about once every 10 days, so one wash is sufficient. Extra-large powder brushes (like the MUFE130 and La Mer) absorb the foam so much that it's never enough, so I've stubbornly squirted out the foam multiple times (lol). It's easier to just use Shiseido Sponge Cleaner or Kumano Brush Resetter. What's particularly noteworthy about this product is how quickly it rinses off and dries. It dries surprisingly quickly, even after rinsing with water. It's much faster than Shiseido's sponge cleaner or Kumano Brush Resetter. When I wash my brushes with water, it usually takes two days for small brushes and three or four days for larger ones to dry in the shade, but this brush is completely dry in less than half the time. Yesterday, I washed a large eyeshadow brush and a small foundation brush (HASU FUDE) in the morning, and when I got home that evening, they were completely dry! This is my top pick for a brush cleaner to use when washing with water.