DeAU
DeAU VC One精华液，30毫升
DeAU VC One精华液，30毫升
@cosme rating: 5.0/7.0
An anti-aging beauty serum containing 100% pure, advanced vitamin C derivative
✓ 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
本产品采用100%纯净的升级版维生素C衍生物(*1)溶液(*2)配制而成。它能稳定输送脆弱的维生素C，并尽可能减少刺激，旨在持续发挥其功效。此外，其两亲性使其能够与水和油混合，从而实现高渗透性(*3)。这种升级版维生素C衍生物(*1)还具有保湿功效。针对日益增多的衰老迹象，例如肤色暗沉、缺乏弹性、毛孔粗大和干燥，维生素C(*2)能够同时解决这些问题，令肌肤焕发活力，水润饱满，紧致有弹性，质地细腻，容光焕发。*适合不同年龄段的护理(*1) 3-月桂基甘油抗坏血酸：一种护肤成分(*2) 水、异戊二醇、3-月桂基甘油抗坏血酸、丁二醇、苯氧乙醇(*3) 深入渗透至角质层
Ingredients
Water, isopentyldiol, 3-laurylglyceryl ascorbate, BG, phenoxyethanol
How to use
洗脸并用乳液爽肤后，取适量本产品于掌心，涂抹于整个面部或需要护理的部位。
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.
DeAU VC One Serum is a serum formulated with 100% pure, advanced vitamin C derivative. Its stability and low irritation make it easy to continue using, while its amphiphilic nature means it blends with both water and oil for enhanced penetration! It's a vitamin C derivative that also has moisturizing properties. Vitamin C addresses all skin concerns, including signs of aging, leaving skin firm, radiant, and smooth, for vibrant, hydrated skin. It's non-sticky and easily absorbed into the skin, making it a great choice for morning skincare. This serum is recommended for those concerned with pores, dullness, and rough skin.
I was attracted to the fact that it was a "beauty serum containing 100% pure solution*2 of an advanced vitamin C derivative*1." I started using it because I wanted firmer, clearer skin. It has a light, watery texture. It blends well with the skin and is not sticky, so I found it easy to use in any season. It has a moisturizing feel, making it a great item to use when you're concerned about dryness. It seems to address multiple skin concerns, so I'm happy it will help me get closer to my ideal skin! *1 3-Laurylglyceryl Ascorbic Acid (skin conditioning ingredient) *2 Water, isopentyldiol, 3-Laurylglyceryl Ascorbic Acid, BG, phenoxyethanol
It has a refreshing texture that spreads easily and blends well with the skin, leaving it feeling non-sticky. *All comments on usage are personal opinions.
I tried it out. It's a concentrated beauty serum, but it has a smooth texture and isn't sticky. Because it's a concentrated beauty serum, I was worried about it stinging my skin, but I didn't notice any tingling and it was very comfortable to use.