ONE BY KOSE
One By Kose Deep Hydrator Refill, 150ml
One By Kose Deep Hydrator Refill, 150ml
@cosme rating: 4.7/7.0
A highly moisturizing lotion that improves wrinkles and leaves skin looking plump and bright.
✓ 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
Ingredients
Niacinamide*, Purified Water, 1,3-Butylene Glycol, Concentrated Glycerin, Alcohol, Polyoxyethylene Glycerin (26E.O.), Dipropylene Glycol, N-Stearoyldihydrosphingosine, d-δ-Tocopherol, Jiaogulan Extract, Alcaligenes Polysaccharide, Sodium Hyaluronate (2), Centaurea Centaurea Extract, 2-Ethylhexanoate, Sodium N-Stearoyl-N-Methyltaurate, Acrylates/Alkyl Methacrylate Copolymer, Polyoxyethylene Glyceryl Isostearate, Disodium EDTA, Xanthan Gum, Glyceryl Glucoside, Cholesterol, Bis-Ethoxydiglycol Cyclohexanedicarboxylate, Squalane, Hydroxyethylcellulose, Polyoxyethylene Cholesteryl Ether, Polyethylene Glycol Monostearate, Sodium Hydroxide, Hydrogenated Soybean Phospholipids, Phenoxyethanol*; Unbranded; Other Ingredients
How to use
Use on clean skin after washing your face. Take an amount about the size of a 500 yen coin in the palm of your hand or on a cotton pad and gently massage it into your skin. Then, tone your skin with your own lotion or other product. How to refill into a container: 1. Unscrew the inner stopper from the main container. 2. Hold the spout firmly and cut in the direction of the arrow. Be careful not to hold the bag too tightly when cutting, as liquid may splash out. 3. Insert the spout into the opening of the container and slowly pour the contents in, being careful not to tip the container. Be careful not to press the bag too hard when pouring, as liquid may overflow. 4. Push the inner stopper in until you hear a click and set it into the main container.
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 thick and absorbs easily, is easy to use, and is a repeat purchase.
It has a smooth texture and only a small amount can be applied to the entire face. After continued use, the fine lines around my eyes have become less noticeable. It's relatively inexpensive, so I'll definitely be buying it again.
It has a slightly thick, slightly opaque texture. The moment you put it on your face, it soaks into your skin! It's great that it moisturizes without needing to apply a lot! However, I didn't like the scent. It smells a bit like nail polish remover. The scent is the only thing that's disappointing.
It has an alcohol-like scent, but it disappears quickly so it's not a bother. It's a great product because it's affordable and can help with fine lines.
It has a slightly thick, slightly opaque texture. The moment you put it on your face, it soaks into your skin! It's great that it moisturizes without needing to apply a lot! However, I didn't like the scent. It smells a bit like nail polish remover. The scent is the only thing that's disappointing.