*Based on a bio-instrumentation study of 25 panelists.
Love it
"Lovely texture Although my skin seems ok with just the serum I also use the dewy skin moisturiser which is amazing. Lovely and creamy but not sticky"






Plumping & Smoothing Treatment
A skin plumping serum that instantly floods dehydrated skin with 6x hydration and improves elasticity over time.
Free shipping and returns on U.K. orders








*Based on a bio-instrumentation study of 25 panelists.

| 6x | Instant hydration* |
| 87% | Showed improvement in elasticity after 4 weeks†† |
Clinical Results
*Based on a bioinstrumentation study of 25 panelists.
**Based on a clinical study of 30 panelists.
††Based on a bioinstrumentation study of 45 panelists.
Powered by proprietary complex Hadasei-3™
Three Japanese ingredients, double-fermented to unlock 400+ micronutrients that boost skin's resilience to daily stressors.
Overall rating: 4.762757 / 5 from 1509 reviews.
The Dewy Serum is praised for its quick absorption, leaving skin feeling soft and supple. Customers report significant improvements in skin hydration, elasticity, and overall appearance. The product's appealing scent, beautiful packaging, and silky texture also contribute to its positive reception.
Review topics: ["absorbs","results","color","issues","ingredients","irritation","improvement","scent","wrinkles","weight","quality","price","fragrance","spots","feels","works","texture","packaging","design","use","formula","skin","look","lines","amount","glow","face","difference","hydration","bottle"].
"Lovely texture Although my skin seems ok with just the serum I also use the dewy skin moisturiser which is amazing. Lovely and creamy but not sticky"
"I've been using Tatcha for almost a year. All the Dewy products. The serum makes my skin look so smooth and hydrated. I'm 81yrs and proud of my skin thanks to Tatcha."
"I recently purchased the dewy serum and it’s so moisturising, it feels soft as silk and my skin drinks it. I pair it with the dewy milk moisturiser and it’s a dream team"
"Lovely serum, I wear it under makeup and makes for a perfect finish."
"I normally get cheaper products for my skin routine, I'm not naming names😅, but using Tatcha has been a whole new experience. This serum is amazing, easy absorbion and amazing hydration."
"Its a perfect combination of products"
"Enjoy these Tatcha products"
"I have acne prone sensitive skin and it works great for me. Lightweight, but very hydrating! Perfect as a makeup base too"
"This is a regular in my daily routine it protects my skin from the elements and I am never without it as I am outdoors a lot"
"Okay, im obsessed. this serum gives that glass skin finish without feeling heavy or greasy. my skin instantly feels plump, hydrated and soooo smooth. ive been using it under my makeup and it honestly makes everything look more glowy. its on the pricier side, but if you are looking to invest in something that makes your skin feel and look luxe, this is it!"
Frequently asked questions