Tatcha The Dewy Serum for dry sensitive skin

How to apply

Questions and answers

What the research says

• A single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women.

  Clinical, Cosmetic and Investigational Dermatology, 2017

• Application of Galactomyces ferment filtrate skin care formula significantly reduced the net values and daily fluctuation of facial pore area, roughness, and redness in young Japanese women.

  Journal of Clinical Medicine, 2021

• Squalane at 0.005-0.015% counteracts UVA-induced oxidative stress, inflammation, and collagen metabolism inhibition while stimulating fibroblast migration in human dermal fibroblasts.

  Molecules, 2025

• Plant-derived squalane protected human dermal fibroblasts against UVA-induced damage by counteracting ROS formation, suppressing apoptosis-related proteins p53, caspase-3, caspase-9, and PARP, and restoring the pro-survival p-Akt/mTOR pathway.

  Antioxidants, 2025

• Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.

  Journal of Drugs in Dermatology, 2011

• Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.

  Clinical Oral Investigations, 2022

• Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.

  BMC Oral Health, 2019

• Daily application of a cream containing niosomes loaded with purple glutinous rice extract in 20 human volunteers for 28 days resulted in a significant decrease in melanin index and skin roughness by -14.05% and -9.95%, and increases in skin hydration and elastic recovery by +48.73% and +35.98% compared to initial values.

  International Journal of Cosmetic Science, 2020

• The iontophoretic delivery of hyaluronic acid nanogel-loaded Saccharomyces/Rice Ferment Filtrate significantly reduced advanced glycation end products and mitigated skin stiffening in an ex vivo skin tissue glycation model.

  International Journal of Nanomedicine, 2025

• Red rice extract suppressed UVB-induced inflammation and skin aging in human skin fibroblasts by inhibiting the MAPK signaling pathway, leading to decreased NF-kappa B and AP-1 activation, reduced ECM degradation, and increased ECM synthesis compared to UVB-irradiated controls.

  Natural Product Communications, 2016

• Topical application of TAC/Collagen postbiotics gel improved skin moisture score and inflammation index, and reduced porphyrins and brown spots in 20 volunteers with acne vulgaris.

  Journal of Cosmetic Dermatology, 2022

• Topical collagen tripeptide application improved skin wrinkles, elasticity, and density while reducing advanced glycated end products in 22 Asian women over 4 weeks.

  International Journal of Molecular Sciences, 2022

• Marine collagen extracted from Greenland halibut skin showed a non-cytotoxic effect on fibroblast cells and provided a slight skin hydration effect when incorporated into cosmetic hydrogel formulations at dosages of 0.1, 0.25, and 0.5% in 23 healthy volunteers.

  Marine Drugs, 2023

• Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers.

  Experimental Dermatology, 2003

• Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation.

  Journal of Periodontology, 2009

• Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream.

  Journal of Cosmetic Dermatology, 2022

Ingredients

Saccharomyces Rice Ferment Filtrate, Glycerin, Propanediol, Water, 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, Phenoxyethanol, Citral, Limonene, Linalool

Behind this fit score

Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.