Predia
Predia Spa & Mer Thalasso Sauna Mask (1 Sheet)
Predia Spa & Mer Thalasso Sauna Mask (1 Sheet)
Rated 4.6 out of 7.0 by Japan’s largest beauty community
A warming gel mask that you can apply in the bath for skin care.
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
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What it is
Simply apply this warming gel mask in the bath. This warming gel mask locks in ocean moisture with a warming sensation. . This warming seaweed gel mask, formulated with naturally derived minerals, creates a warming sensation with the steam of your bath. It adheres perfectly to your skin, addressing dullness caused by dryness and leaving it radiant and supple. . Formulated with ocean-derived beauty ingredients. For radiant, firm, and supple skin. It's like a sauna, with ocean-derived beauty ingredients penetrating deep into the stratum corneum. It leaves skin radiant, firm, and radiant. . Improves penetration of subsequent cosmetics (down to the stratum corneum). It softens skin, allowing for better penetration of subsequent makeup. It moisturizes and refines texture, improving the application of foundation. . Made with a mesh-type 100% cotton sheet for a snug fit. Packed with beauty ingredients, it won't slide off, allowing for intensive care of the lower half of your face.
Ingredients
How to use
Use in the bath on wet skin after washing your face. Remove the mask from the package and unfold it. Place it on your face, aligning it with the area under your eyes, and press the mask with your hands to ensure it adheres. Leave it on for 5-10 minutes, then remove the mask and rinse with water or lukewarm water. *This mask reacts with moisture (steam) to create a warming sensation, so if you leave it on while in the bath, you will experience an even greater warmth.
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.
The sheet is quite thick. It's soaked in gel, so there's no friction, but the thickness and gel make it feel quite heavy. It's warm and comfortable, but I personally find the weight a bit bothersome.
I tried this pack for the first time at an event at the Décolleté store where I could try out a steamer and this pack! It was so warm, almost a little hot, and I heard it promotes blood circulation and flushes out toxins. Afterwards, the lower half of my face was red and warm, which felt great. My acne seemed to have calmed down the next day, and my makeup went on incredibly well, so I was happy to find out about this new pack. I was also told that it can be used in the bath, so I'm looking forward to using it on the day before my day off to relax and soothe and care for myself after cleansing!
I found it easy to use and relaxing.
This is my first purchase. I really like the texture! I've only used it once, so I can't say for sure about the results...