Tatcha The Dewy Serum Review: Does It Work Effectively?

Tatcha The Dewy Serum is a lightweight, fragrance-free formula enriched with lactic acid, hyaluronic acid, and sugarcane-derived squalene, designed to hydrate and plump the skin.

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In This Review

Overview of Tatcha The Dewy Serum

Having a dewy skin is the top-tier goal of every skincare routine. Dewy skin looks healthy, and moisturized, and has a natural glow to it. Previously, a matte look was all the hype and dewy skin was considered less desirable as it looked oily. In the early 2000’s however, South Korea’s makeup industry revolutionized the dewy skin trend known as “Chok Chok” (meaning moist and glowy finish).

Tatcha The Dewy Serum promises to deliver these results with as few steps as possible. In this comprehensive review, we take a closer look at this serum, its ingredients, and whether it is worth a try or not. Join us in this exploration as we uncover all the details regarding this product.

What is Tatcha The Dewy Serum?

Tatcha The Dewy Serum is a lightweight serum that features clean and gentle ingredients to moisturize, plump, and smooth the skin for a dewy finish. The formula contains plant-based hyaluronic acid, lactic acid in hadasei-3 (AHAs), as well as sugarcane-derived squalene. It is suitable for all skin types and targets dullness, dehydration, and fine lines and wrinkles.

Its texture while light, is not overly runny and is claimed to be just the right balance between light and thick, somewhat like a gel. Its appearance is milky and may absorb quickly when applied to the skin, but may still leave the skin feeling soft and hydrated. As for smell, this serum does not have any noticeable fragrance which is a plus for users who are sensitive to strong smells.

This serum is packed in a lightweight plastic bottle that is Tatcha’s classic lavender color. Thanks to this lightweight packaging, this serum is suitable for travel and use on the go. In addition to that, the bottle has a pump to dispense The Dewy Serum, making it easy to control the amount you want to use. Tatcha The Dewy Serum perfectly pairs with Tatcha The Dewy Skin Cream another product in the collection.

How Does Tatcha The Dewy Serum Rate?

Overall Rating: 3.6
Tatcha The Dewy SerumTatcha The Dewy Serum

Ingredients Quality

3.7/5Ingredients Quality
Value for Cost

3.5/5Value for Cost
Return Policy

3.5/5Return Policy


Product Highlights

  • Made at the Tatcha Institute in Tokyo
  • Combines Japanese knowledge with clinically approved ingredients
  • Paraben free
  • Sulfate-free

Key Ingredients

  • Lactic acid
  • Hyaluronic acid
  • Sugarcane-derived squalene


  • May help restore skin radiance
  • Claims to boost skin hydration
  • May rejuvenate the skin
  • May lock in moisture for longer
  • Might reduce visible aging signs


  • May cause breakouts
  • Quite expensive
  • Works better when used with other Tatcha products

Who is the Manufacturer of Tatcha The Dewy Serum?

Tatcha was founded by Vicky Tsai after a visit to Kyoto where she encountered a culture that healed her acute dermatitis. She studied the Japanese ingredients that helped transform her skin and with that, Tatcha was born. The company is not a solo venture as it is supported by a team of scientists, geisha, and cultural advisors who help in the crafting of the formulas.

Every Tatcha formula is created at the Tatcha Institute in Tokyo by leading scientists who innovate within the confines of tradition. At the core of Tatcha products lies the balance between timeless Japanese botanicals and clinical ingredients with scientific backing.
According to the company, Tatcha products are well-being rituals as they not only improve skin health, but also physical, mental, and emotional wellbeing.

How Does Tatcha The Dewy Serum Work?

Tatcha The Dewy Serum works to moisturize the skin through its three main ingredients; lactic acid, hyaluronic acid, and sugarcane-derived squalene.

Lactic acid in this serum is derived from three Japanese superfoods including Akita rice, Okinawa algae, and Uji green tea. As a chemical exfoliant, lactic acid has the ability to improve the skin’s appearance. Other than that, it keeps the skin naturally hydrated[1].

As for hyaluronic acid, also known as hyaluronate or hyaluronan, is a super ingredient in the world of skincare. It has water retention capabilities like no other. For instance, a quarter teaspoon of this ingredient can hold up to one and a half gallons of water. So, for this reason, it keeps the skin hydrated, flexible, and wrinkle-free.

Lastly, this serum contains sugarcane-derived squalene which is a humectant that locks in moisture, keeping the skin hydrated all day long. When applied to the skin, squalene enhances skin hydration, reduces moisture loss, and prevents the skin from drying out. The best thing about squalene is that while it is an oil, it is non-comedogenic which is to say it does not clog pores.

Tatcha The Dewy Serum Ingredients – Are they Safe?

Some of the front-line ingredients in this serum include;

Uji Green Tea

Uji green tea is a type of green tea grown in Uji, Kyoto in Japan. A 2016 review study in the Antioxidants journal found that green tea polyphenols in topical formulations may be beneficial in reducing sebum secretion and in acne treatment[2].

According to researchers Eunji Kim and team, established that green tea contains amino acids, proteins, and lipids which are essential for enhancing skin hydration. Epigallocatechin (EGCG), an abundant polyphenol in green tea was declared to have

positive effects on skin hydration, moisture retention, and wrinkle formation[3].

Okinawa Algae

Okinawa algae is a red alga. It is considered a super ingredient in bathing products, hair products, skincare, and healthy diets. In a review study published in the International Journal of Pharmacy, red algae were discovered to have numerous compounds with therapeutic properties. Red algae’s major applications are anti-wrinkling and skin whitening[4].

Researcher Yoon-Yen Yow, Department of Biological Sciences, School of Science & Technology, Sunway University, Malaysia agrees that

marine algae are rich in bioactive substances that have shown to exhibit strong benefits to the skin, particularly in overcoming rashes, pigmentation, aging, and cancer[5].

Akita Rice

Rice grown in Akita Japan is claimed to have skin care benefits which could be true as rice has been used for cosmetic purposes for centuries. According to studies in the Journal of Cosmetic Dermatology, phenolic compounds of rice such as betaine, rice bran, squalene, and tricin have been to have antiaging, anti-inflammatory, whitening, moisturizing, and photo-protective properties[6].

Researcher Ivana Binic and her team from the Clinic of Dermatovenereology, Clinical Center of Nis, Serbia, demonstrated that fermented rice water (rice wine) can help improve skin damage from the sun. By increasing collagen in the skin, it helps keep the skin supple and prevent wrinkling. Rice wine also has natural sunscreen properties[7].

Hyaluronic Acid

Hyaluronic acid occurs naturally in the eyes and joints. It works to cushion and lubricate the joints as well as other tissues in the body. In skincare, hyaluronic acid is used particularly for its hydrating and anti-aging properties as per studies in the Dermatologic Therapy journal[8].

Researcher Anca Maria Juncan and colleagues published the advantages of hyaluronic acid in the Molecules journal[9]. According to them

HA has a multitude of applications based on specific properties such as high hygroscopicity, viscoelastic nature, biocompatibility, and non-immunogenicity.

Additionally, Hyaluronic acid’s hydration effect on the skin may also optimize dermal absorption of other active ingredients.

Sugarcane Derived Squalene

Squalene, a triterpene compound, can be found in many plant and fish sources. It is important in skincare owing to its many benefits including hydrating, reducing visible signs of aging, and non-comedogenic properties. A 2018 review study published in the Molecular Nutrition and Food Research journal provided that squalene has antioxidant, anti-inflammatory, and anti-atherosclerotic properties[10].

According to researchers Se-Kwon Kim and Fatih Karadeniz,

several studies exhibited results that prove certain bioactivities for squalene. Up to date, anticancer, antioxidant, drug carrier, detoxifier, skin hydrating, and emollient activities of these substances have been reported both in animal models and in vitro environments[11].

Benefits of Tatcha The Dewy Serum

May restore and replenish the skin – Over time, the skin loses its glow and health due to elements such as sun exposure and pollutants in the environment. The Dewy Serum’s proprietary complex Hadasei-3 may help replenish the skin.

May hydrate and plump the skin – The hydrating prowess of hyaluronic acid is unmatched. In this formula, hyaluronic acid may moisturize and plump the skin for a fresher, rejuvenated, and youthful look.

May lock in moisture – Once hyaluronic acid hydrates the skin, squalene jumps in with its moisture-locking capabilities, leaving skin hydrated for longer.

Tatcha The Dewy Serum Review – FAQs

Q: Does Tatcha The Dewy Serum Have a Return Policy?

A: Yes, for USA residents, products should be returned within 60 days from the date of purchase. Only products purchased from the official website Tatcha.com may be returned. For international returns, users must contact the company’s customer care for instructions.

Q: Where Can I Buy Tatcha The Dewy Serum?

A: You can purchase this product from Tatcha.com

Q: Does Tatcha The Dewy Serum Have Any Side Effects?

A: Some users may react to hyaluronic acid which can cause itching, redness, swelling, or pain.

Q: How Should You Take Tatcha The Dewy Serum?

A: Dispense 1 or 2 pumps of The Dewy Serum and massage it gently into your skin during your morning and evening skincare routine. Should be applied before your moisturizer.

Q: What Sets Tatcha The Dewy Serum from the Competition?

A: Tatcha Dewy Serum infuses ancient Japanese practices into its innovative formula. It provides a dewy radiance without being oily and heavy.

Q: How Much Does Tatcha The Dewy Serum Cost?

A: This serum costs $89.00

What Do Tatcha The Dewy Serum Reviews Say?

I bought this to use alongside the dewy cream but I tend to use it alone on days when I don’t need the extra moisture or dewy look as I feel the dewy cream is enough on its own. It goes on lovely and absorbs well. I have sensitive skin and this didn’t cause a reaction. –Space NK review

The rave about Tatcha products got me trying. I find some of the products including this Dewy Serum to be pore-clogging and causing breakouts! The same goes for the dewy cream. Too heavy, sits on the surface without absorption for hours, leaving an oily rather than dewy effect! I applied this just ONCE and my face was filled with white-heads the next morning! Might work for others but definitely not for dry sensitive skin type. –Space NK review

This dewy serum is absolutely wonderful I could use it alone under makeup as it goes on so well, has a silky feel, smells gorgeous, but together with the dewy skin cream my skin feels so smooth and hydrated and makeup looks perfect. I was gifted this together with the rice wash and dewy skin cream and all three used together to make the perfect combination. –Space NK review

I love this and keep it on the table next to me. When I don’t feel like going through the whole routine, I just put this on. Works great! –Tatcha review

Love the product, but then again I love all of Tatcha products! –Tatcha review

Tatcha The Dewy Serum Review – Conclusion

Tatcha’s The Dewy Serum is a great addition to your skincare routine especially if you are already a fan of The Dewy Cream. However, the price tag is quite high with this one. At a whopping $89.00, it can be too expensive to use in the long run.

Although it features exemplary ingredients, this serum is not as non-comedogenic as advertised. Multiple reviewers complained of breakouts, meaning the serum can clog pores. It also has a mild fragrance that could not work well for those with smell sensitivities. Bearing all these in mind, you can find better serums in the market.

However, if you are feeling adventurous, have normal skin, and want to splurge a bit, then The Dewy Serum is a product you should definitely add to your dresser.

Skin Brighteners aid in reducing post-inflammatory hyperpigmentation revealing even skin tone. Skin brighteners also can help revitalize tired and dull skin resulting in a youthful, healthy glow.

Below you'll find some of the most effective skin brightening products on the market today, in our opinion.

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Verdict on Claimed Benefits: Below is our summary of the available evidence for the claimed benefits of below mentioned anti-aging supplements, creams, serums, and moisturizers based on the available research:

Essential Skin Food | Skin Nourishing Collagen Support
Diminishes the Dark Spots*Gold Star Evidence
Boosts Skin's Plumpness*Gold Star Evidence
Improves Skin's Radiance*Gold Star Evidence
Brighten Skin Naturally*Strong Evidence
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Support for Claims:
Ingredient Safety:
Value for the Price:
Brand Transparency:
Overall Rating: 4.9
Neotonics | Skin & Gut Probiotics
Targets the Root Cause of Aging*Gold Star Evidence
Modulates Gut Microbiome*Strong Evidence
Enhances Skin Rejuvenation*Strong Evidence
Supports Collagen Production*Strong Evidence
Rating Breakdown
Support for Claims:
Ingredient Safety:
Value for the Price:
Brand Transparency:
Overall Rating: 4.8
Dermelect | Advanced Skin Formula
Nourish and Protect Skin*Gold Star Evidence
Rejuvenate the Skin*Strong Evidence
Non-Irritating Formula*Gold Star Evidence
Suitable for All Skin Types*Strong Evidence
Rating Breakdown
Support for Claims:
Ingredient Safety:
Value for the Price:
Brand Transparency:
Overall Rating: 4.8

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Consumer Health Digest. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer. *All individuals are unique. Your results can and will vary.

Customer Reviews for The Dewy Serum

Tatcha The Dewy Serum Review: Does It Work Effectively?

Customer Reviews & Ratings

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The Dewy Serum
30g / 1.0 oz.
Lactic acid, Hyaluronic acid and Sugarcane-derived squalene

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    11 Sources

    We review published medical research in respected scientific journals to arrive at our conclusions about a product or health topic. This ensures the highest standard of scientific accuracy.

    [1] Chemical Peels for Skin Resurfacing : https://www.ncbi.nlm.nih.gov/books/NBK547752/
    [2] Green Tea and Other Tea Polyphenols: Effects on Sebum Production and Acne Vulgaris https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5384166/
    [3] Skin Protective Effect of Epigallocatechin Gallate https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5796122/
    [4] Glimpses on cosmetic applications using marine red algae https://www.researchgate.net/publication/286325112_Glimpses_on_cosmetic_applications_using_marine_red_algae
    [5] Algae Metabolites in Cosmeceutical: An Overview of Current Applications and Challenges https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7344841/#main-content
    [6] Dermatological uses of rice products: Trend or true? https://pubmed.ncbi.nlm.nih.gov/35587098/
    [7] Skin Ageing: Natural Weapons and Strategies https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3569896/
    [8] Benefits of topical hyaluronic acid for skin quality and signs of skin aging: From literature review to clinical evidence https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10078143/
    [9] Advantages of Hyaluronic Acid and Its Combination with Other Bioactive Ingredients in Cosmeceuticals https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347214/
    [10] Current Insights into the Biological Action of Squalene https://pubmed.ncbi.nlm.nih.gov/29883523/
    [11] Biological importance and applications of squalene and squalane https://pubmed.ncbi.nlm.nih.gov/22361190/
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