TATCHA Dewy Serum hydrating face serum — 30ml lightweight, plumping with hyaluronic acid & squalane

TATCHA The Dewy Serum is a lightweight 3‑in‑1 hydrating serum that gently resurfaces, plumps, and locks in moisture for smoother, dewier-looking skin. This serum blends lactic acid derived from TATCHA’s Hadasei‑3™ fermentation of Japanese superfoods with two sizes of hyaluronic acid and squalane to hydrate, visibly soften texture, and reinforce skin’s surface moisture. It’s formulated to sit between essence and moisturizer so it can deliver active smoothing while replenishing and sealing hydration in morning and/or evening routines.

How does The Dewy Serum smooth and refine skin texture?

The Dewy Serum uses a gentle AHA action from naturally fermented lactic acid in the Hadasei‑3 complex to support surface cell turnover without harsh abrasion. This helps the skin look more even and soft while preserving moisture with replenishing ingredients.

• Hadasei‑3™: double‑fermented Uji green tea, Akita rice, Okinawa algae creating naturally occurring lactic acid
• Gently promotes surface renewal for smoother texture
• Non‑stripping formulation designed for regular use

What provides the plumping and lasting hydration?

Two molecular weights of hyaluronic acid draw and bind water at different layers, while squalane creates a lightweight barrier that minimizes moisture loss. Together they restore a supple, cushiony feel and help skin look more lifted and dewy without heaviness.

• Multi‑weight hyaluronic acid for immediate and sustained plumpness
• Squalane to lock in hydration and improve skin resilience
• Fast‑absorbing, non‑greasy finish suitable under makeup

When and how should I add it to my routine for best results?

Apply The Dewy Serum after your essence and before your moisturizer, both morning and night as needed. A few drops are enough—pat gently into clean skin to optimize absorption and follow with sunscreen during daytime use.

• Use after cleansing and essence, before moisturizer
• Suitable for AM and PM; use sunscreen in daytime routines
• Small dose spreads across face and neck; apply to damp skin for enhanced absorption

Is this serum suitable for sensitive or dry skin types?

The formula emphasizes kind‑to‑skin, clean ingredients and a gentle lactic acid profile derived from fermentation rather than strong synthetic AHAs. People with sensitivity should patch test and introduce gradually, but many with dry or combination skin find it hydrating and smoothing.

• Formulated with mild, naturally sourced lactic acid instead of harsh exfoliants
• High concentration of moisturizing ingredients supports dry skin needs
• Patch testing recommended for very reactive skin types

This serum is ideal for shoppers who want visible smoothing and lasting hydration without heavy oils or aggressive exfoliation. It suits dry to combination skin types seeking a dewier finish, anyone layering targeted actives under moisturizer, and customers who prefer formulas built on botanical fermentation and time‑tested Japanese superfoods. Beyond performance, buying TATCHA supports the brand’s education initiatives, so this product appeals to people who value purpose‑driven beauty. Whether you’re refining texture, restoring bounce, or reinforcing your hydration step, The Dewy Serum slots into daily skincare to lift hydration and surface refinement in a single lightweight treatment.

Ingredients

SACCHAROMYCES/RICE FERMENT FILTRATE, GLYCERIN, PROPANEDIOL, AQUA/WATER/EAU, SQUALANE, GLYCERYL STEARATE, ISONONYL ISONONANOATE, BEHENYL ALCOHOL, DIMETHICONE, STEARYL ALCOHOL, CAMELLIA SINENSIS LEAF EXTRACT, CLADOSIPHON OKAMURANUS EXTRACT, SODIUM HYALURONATE, HYDROLYZED COLLAGEN, HYDROLYZED ELASTIN, BETAPHYCUS GELATINUM EXTRACT, CRAMBE ABYSSINICA SEED OIL, STEARYL GLYCYRRHETINATE, ASCORBYL TETRAISOPALMITATE, PHYTOSTERYL MACADAMIATE, TOCOPHERYL ACETATE, SODIUM DILAURAMIDOGLUTAMIDE LYSINE, SODIUM CHONDROITIN SULFATE, POLYGLYCERYL-10 EICOSANEDIOATE/TETRADECANEDIOATE, CELLULOSE GUM, HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, DISODIUM PHOSPHATE, POTASSIUM PHOSPHATE, ETHYLHEXYLGLYCERIN, SORBITAN ISOSTEARATE, POLYSORBATE 60, BUTYLENE GLYCOL, TOCOPHEROL, ALCOHOL, PARFUM/FRAGRANCE, PHENOXYETHANOL, CITRAL, LIMONENE, LINALOOL "

FAQ

Q: How often should I use The Dewy Serum?

A: Use it morning and/or evening after your essence and before moisturizer. Apply a few drops and layer sunscreen during the day.

Q: Will this serum irritate sensitive skin?

A: The formula uses gentle lactic acid from fermentation, but patch testing and gradual introduction are recommended for very reactive skin.