Reinca
Reinca Stem Treatment Recovery Mask Set, 20ml×4
Reinca Stem Treatment Recovery Mask Set, 20ml×4
Rated out of 7.0 on @cosme, Japan's largest beauty review site
A set of four sheet masks with stem cell culture extract for calmer, glowing skin.
✓ 100% authentic, bought in Japan
✓ Ships from Tokyo in 3 business days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
Stem Treatment Recovery Mask is a set of four sheet masks that help settle skin into a healthy, balanced condition. Each 20mL sheet clings closely and combines stem cell culture extract, 15 vitamins, and a diamond-and-platinum complex, on a base of 77 percent rice ferment extract, for skin that looks clearer, firmer, and more hydrated.
Why it's different
Stem cell culture extract and 15 vitamins help settle skin into a healthy condition.
A base of 77 percent rice ferment extract carries moisture into the surface layers.
Close-clinging sheets support a clearer, firmer, more hydrated-looking result.
Key ingredients
Stem cell culture extract: helps condition skin
Rice ferment extract: carries moisture into the skin
Vitamins (15 types): support a clear, healthy look
How to use
1. Use right after cleansing, or after toner.
2. Unfold the mask and smooth it onto the face.
3. Leave on for about 10 minutes, remove, then pat the remaining essence into the skin.
Reinca Stem Treatment Recovery Mask Set, 20ml×4
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.
How long do I leave each mask on?
About 10 minutes. After removing the mask, pat the essence left on the skin in with your hands.
What does the stem cell culture extract do?
It helps settle skin into a healthy, balanced condition and, with 15 vitamins, supports a clearer, firmer, more hydrated look.
How many masks are in the set?
The set contains four sheet masks, each holding 20mL of the essence-rich formula.
When in my routine should I use it?
Use it right after cleansing, or after toner, as a treatment step before the rest of your skincare.
We ship internationally from Japan!
International Delivery Rates
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 international shipping take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan. As of 22 July 2026:
- 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
These are estimates only. 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. We offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I have to 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.