Kansosan
Kansosan Medicated Moisturizing Oil Serum, 35ml
Kansosan Medicated Moisturizing Oil Serum, 35ml
Plump and firming medicated oil serum
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• Authenticity guaranteed.
• Ships direct from Japan in 3-5 days
• Custom duties & tariffs fully handled by us for US customers.
• Track your order via USPS, Royal Mail, Canada Post, Australia Post.
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What it is
One drop is all it takes for radiant, moisturized, and plump, firm skin! This medicated moisturizing oil serum prevents rough skin and acne. [Quasi-drug] [Contains moisturizing and skin-beautifying ingredients to care for skin from dryness] The easily absorbed oil ingredients give firmness and radiance, leading even rough, dry skin to soft and supple skin. Moisturizing ingredients: Human-type ceramide (*1), amino acid oil (*2), Firmness and radiance care: Squalane (moisturizing), rosehip oil (moisturizing), astaxanthin-containing oil (*3) [Contains active ingredients to prevent skin problems] Contains active ingredients to prevent skin problems such as rough skin and acne. Prevents rough skin and acne: <Active ingredient> Stearyl glycyrrhetinate [Rich texture that absorbs comfortably without stickiness] When you apply the rich moisturizing oil to areas that feel dry, it will leave your eyes, mouth, and entire face feeling plump and firm. [Non-comedogenic tested] This does not mean that comedones (acne-causing bacteria) will not occur in all users. [Gentle on the skin and free from harmful ingredients] Free from petroleum-based surfactants, parabens, tar dyes, synthetic fragrances, alcohol, and silicones. *1 Hydroxystearyl phytosphingosine, N-stearoyldihydrosphingosine, N-stearoylphytosphingosine, stearoyloxyheptacosanoylphytosphingosine *2 N-lauroyl L-glutamic acid di(phytosteryl/2-octyldodecyl) *3 Astaxanthin solution (all moisturizing ingredients) (Quasi-drug) Product name: KS Medicated Moisturizing Oil Serum
Ingredients
How to use
After preparing your skin with lotion, take an appropriate amount (2-3 drops for the entire face) into your clean palm and gently apply it to your entire face, enveloping it in your skin.
We ship internationally from Japan!
Frequently Asked Questions
Are the products you sell authentic?
Authenticity is 100% guaranteed. We source directly from the brand, or from official stores within Japan.
All products are fresh off the shelves and never outdated.
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.