METLLASSE
METLLASSE Plump Serum, 30ml
METLLASSE Plump Serum, 30ml
@cosme rating: 4.0/7.0
A rich eye serum that targets the eye area with just one application!
✓ 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
Metrasse Plump Serum is made with over 98% serum ingredients (including purified water) and is specifically designed to address dryness around the eyes! This rich serum adheres perfectly to the eye area, pinpointing and plumping it with a single application. It was born from customer feedback, "I want a product that solves the problem of my eyes looking dry, puffy, and saggy by the evening, even when I apply heavy makeup in the morning!" It was developed with the aim of realizing this "product I've always wanted!" Eye-specific functional moisturizing ingredients*1, such as acetyl hexapeptide-8, an ingredient popular among beauty-conscious people like Botox*, address signs of dryness and leave the eye area feeling plump and firm. In addition, it contains carefully selected beauty ingredients such as the highly moisturizing ingredient "proteoglycan*2," "ceramide*3," and "hyaluronic acid*4" that moisturize the eye area, resulting in moisturized, firm, and radiant eyes*5. * Wrinkle Improvement Injection*1 Acetyl Hexapeptide-8, Gum Arabic, Xanthan Gum*2 Water-Soluble Proteoglycan*3 Ceramide NP, Ceramide AP, Ceramide EOP*4 Hyaluronic Acid N*5 Moisturized Skin <Recommended for!> "My eyes are dry and puffy..." "My eyes look tired in the evening..." "I'm concerned about a lack of firmness around my eyes..." . As an everyday eye serum. . As a "preparatory beauty" before touching up your makeup. . As a rescue item for tired eyes in the evening.
Ingredients
How to use
After applying lotion in the morning and evening, apply an appropriate amount around both eyes. It can also be used as a pre-treatment serum when touching up your makeup. When using before applying makeup, use a slightly smaller amount and blend thoroughly. *Recommended use: Use about 0.2g (about 1 push) in the morning and evening for about 2.5 months.
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.