est
est Serum One Advanced Refill, 90g (Bright Bouquet)
est Serum One Advanced Refill, 90g (Bright Bouquet)
@cosme rating: 5.2/7.0
For skin that is full of moisture, vibrant, bright and clear.
✓ 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
*The product images on this page are of the new design, and we are gradually switching over to the new design. You may receive the product from before the change. The evolved Serum One. Full of moisture, it not only gives skin a vibrant, firm look, but also brightens and translucently radiant skin. [Quasi-drug] A carbonated*2 foam serum that prevents blemishes*1 and improves wrinkles. The rich, creamy micro-carbonated*2 foam adheres to the skin. The serum penetrates to the deepest layers of the stratum corneum. The evolved Serum One gives skin a vibrant, firm look, and brightens and translucently radiant skin. ●Contains the active ingredient niacinamide: Improves wrinkles. Suppresses melanin production, preventing blemishes and freckles. *1 Suppresses melanin production, preventing blemishes and freckles. *2 Carbon dioxide gas (propellant). Vitality-filled floral green bright bouquet scent. *This product is a refill, so no case is included. (Quasi-drug)
Ingredients
Niacinamide*, Water, Butylene Glycol, Dimethicone, DPG, Carbon Dioxide, Isotridecyl Isononanoate, Glycerin, Diglycerin, Seaweed Extract-1, Ectoin, Yuzu Extract, Carrot Extract, Concentrated Glycerin, PEG1540, POE/Dimethicone Copolymer, POE Hydrogenated Castor Oil, Acrylic Acid/Alkyl Methacrylate Copolymer, Absolute Ethanol, Silica, Potassium Hydroxide Solution (A), Monopotassium Phosphate, Disodium EDTA, Phenoxyethanol, Paraben, Fragrance. * indicates "active ingredient." Nothing listed indicates "other ingredients."
How to use
Use every morning and night after washing your face. Without shaking the container, hold the head upside down and take an appropriate amount (approximately 3 cm in diameter) in your hand. Apply the foam onto your face, being careful not to crush it, and gently and slowly spread it over your entire face, then massage it in thoroughly.
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've repurchased this product so many times, it's a favorite of mine. The power of carbonation is truly amazing. The way my skin texture improves with or without it is completely different... I'll be using this forever!
I've been using it for a month now, and I feel like the wrinkles around my eyes have thinned a little. The carbonated foam feels moisturizing and spreads easily.
The lotion penetrates deeply! I feel there is a huge difference between having this and not having it. I've bought several bottles and have been using other products and skipping out on using it, but that's when I really noticed it. I noticed a difference in how soft and smooth my skin felt, and since then I always use this right after washing my face. It also smells great.
This was my first time using an EST product. It was quite pricey, but I believed in its effectiveness and bought it. It was in the Suzykireitics section, and I was also attracted by the poster. To use it, you massage the foam into your skin, and it has a nice scent and leaves your skin feeling smooth, so you'll naturally want to reach for it. You can also feel your skin becoming brighter, as if it's shining a light on it. It's expensive, but I think it's worth it.
I use the entire EST skincare line. I usually buy refills, but since it was a gift set, I bought the full product. This introductory serum is a must. It soaks up tons of lotion!