REIKO KAZKI
Reiko Kazki Medicated Wrinkle Improvement & Whitening Serum Cream, 18g
Reiko Kazki Medicated Wrinkle Improvement & Whitening Serum Cream, 18g
@cosme rating: 4.5/7.0
A comprehensive approach to adult concerns. Wrinkle improvement and whitening*1 cream
✓ 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
This medicated wrinkle cream simultaneously addresses the three major concerns of aging skin: wrinkles, age spots, and rough skin. The active ingredient, niacinamide, improves wrinkles and whitens the complexion. Additionally, dipotassium glycyrrhizinate prevents roughness and dryness, maintaining healthy skin. It contains a gentle retinol derivative (retinol palmitate) for a firmer, more youthful appearance. Seven moisturizing ingredients, including squalane, Geranium globulus extract, and Rosa robur extract, provide overall hydration and elasticity to the skin, along with collagen*2, hyaluronic acid*3, elastin*4, and three types of ceramides*5. It gently envelops dry skin, plumping it up from within and leaving it feeling plump and firm. The cooling ceramic massage head provides comfortable care around the eyes, mouth, and neck. *1: Inhibits melanin production and prevents age spots and freckles *2: Water-soluble collagen solution *3: Sodium hyaluronate (2) *4: Yellow elastin *5: N-stearoyldihydrosphingosine, N-stearoylphytosphingosine, hydroxystearylphytosphingosine [all moisturizing ingredients] Brand name: RK Medicated Wrinkle Cream (quasi-drug)
Ingredients
How to use
Take an appropriate amount onto your fingertips and gently apply to problem areas such as around the eyes and mouth. Then, place the flat side of the massage head at the opening of the container against your skin and massage gently, without applying pressure. When to use: We recommend using it in the morning and at night, as the last step of your twice-daily skincare routine. Areas to use: Can be used not only around the eyes and mouth, but also on problem areas such as the neck.
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.
I received this as a gift! The cream is just the right consistency and is easy to use. It doesn't sting and blends well with the skin. I can't comment on the effectiveness yet, but so far it seems fine.
◎Good points: It doesn't sting or dry after application. It moistens smoothly and feels cool. You don't have to squeeze it out, you can massage the tip of the tube into your hands, so it's nice that the cream doesn't get absorbed into your hands. △Not so good: None in particular. Texture: Smooth. Scent: None. It was a pleasant experience to use. I'd like to continue using it and see how it goes.
It can be used directly around the eyes, and the cream spreads easily, so it's very comfortable to use. However, I did feel a slight stinging sensation around the eyes.