Spa treatment
Spa treatment RET i-Micro Patch
Spa treatment RET i-Micro Patch
Rated out of 7.0 by Japan’s largest beauty community
Delivered directly to your skin*1, it targets skin problems caused by facial expressions!
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
Couldn't load pickup availability
What it is
This sheet-type serum uses microneedle technology to mold serum ingredients into needle shapes. Based on "hydrolyzed hyaluronic acid*2," it contains pure retinol*3 and Syn-Ake™*4. After application, it dissolves within the stratum corneum over the course of approximately 40 minutes, providing a firming, hydrating, and plump feeling. Recommended for those concerned with skin that has lost its firmness due to UV damage*5 or skin problems caused by facial expressions. Free of fragrances, colorants, parabens, etc. *1: Deep into the stratum corneum *2: Hydrolyzed hyaluronic acid (moisturizing ingredient) *3: Retinol (skin conditioning ingredient) *4: Dipeptide diaminobutyroyl benzylamide diacetate (skin conditioning ingredient) *5: For dryness, lack of firmness, and lack of shine
Ingredients
Hydrolyzed hyaluronic acid, sucrose, diacetic acid dipeptide diaminobutyroyl benzylamide, glycerin, cyclodextrin, retinol, soybean oil, BHT
How to use
After washing your face and toning with lotion, apply the patch only when your skin and fingers are dry. (If moisture remains, the patch will peel off easily, so be sure to apply it thoroughly.) 1. Peel off the white tape around the adhesive, avoiding contact with the needles. (Be careful not to touch the protruding parts.) 2. Place the center of the patch on the area of concern, such as under the eyes or around the mouth, and press your finger vertically to ensure a firm seal, preventing air from getting in. 3. Proceed with your usual skincare routine on any areas not covered by the patch. 4. Leave the patch on for at least 40 minutes, then slowly remove it. (You can also apply the patch before bed and sleep with it on.) 5. Allow the remaining serum ingredients to absorb into your skin, then condition it with a serum or cream. *Use once or twice a week. *Since this patch contains pure retinol, use it only at night, when it is less susceptible to UV rays.
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.