クジ セラム

Kuji Serum
一滴ごとに、艶めく美しさへ。
Every Drop Reveals Your TSUYA Glow.
TSUYA
KUJI PREMIUM

TSUYA テクノロジー

The Science of Japanese Radiance

Inspired by the Japanese concept of 艶 (TSUYA)—the timeless beauty of luminous, healthy-looking skin. Our signature technology harmonizes hydration, nourishment, and skin renewal to reveal a naturally elegant glow.

日本の美容哲学「艶(TSUYA)」から生まれたクジ セラム。

KUJI TSUYAラインを代表する美容液として、植物由来の美容成分と先進の保湿技術を融合したTSUYAテクノロジーを採用しています。

一滴ごとに肌へうるおいを届け、なめらかで、みずみずしく、自然な艶を引き出します。

 毎日のスキンケアを、上質な美容習慣へ。

Born from the Japanese beauty philosophy of TSUYA—the natural glow of healthy, hydrated skin—Kuji Serum is the signature treatment serum of the KUJI TSUYA Line.

Powered by TSUYA Technology, it combines botanical extracts with advanced hydration science to replenish moisture, refine skin texture, and reveal a naturally radiant complexion.

Every drop transforms your daily skincare routine into a luxurious beauty ritual.

KUJI TSUYA Ritual

ブランドストーリー

2021年、クジ セラムはKUJIを代表する美容液として誕生しました。

発売以来、多くのお客様にご愛用いただき、毎日のスキンケアに欠かせない存在となっています。

そして今日、クジ セラムはさらに進化しました。

日本の美容研究と「艶」の哲学から着想を得たTSUYAテクノロジーを採用し、毎日使うたびに、うるおい・なめらかさ・透明感・健やかさをサポートします。

さらに容量も50mlから60mlへアップグレード。

よりたっぷり、より贅沢に、日本発想のスキンケアをお楽しみいただけます。

Introduced in 2021, Kuji Serum quickly became one of the signature products of KUJI.

Loved by customers for its lightweight texture and everyday hydration, it has continued to evolve alongside our commitment to Japanese-inspired skincare.

Today, Kuji Serum enters a new chapter with TSUYA Technology—our signature skincare concept inspired by the Japanese pursuit of naturally luminous skin.

The upgraded edition also increases from 50ml to 60ml, offering 20% more essence so you can enjoy your daily skincare ritual even longer.

KUJI TSUYA LINE

クジセラムの特長

Benefits of Kuji Serum

01

深いうるおい

Deep Hydration
Hyaluronic Acid, Collagen and Aloe Vera replenish moisture, leaving skin soft, supple and comfortably hydrated.

02

自然な艶

Natural Radiance
Helps reveal healthy-looking, luminous skin inspired by the Japanese concept of TSUYA.

03

植物美容成分

Botanical Care
Sakura, Rose and Goji Berry extracts help condition and refresh the skin.

04

ハリのある印象

Smooth & Plump Appearance
Supports a moisturized, soft and resilient-looking complexion.

05

軽やかなテクスチャー

Silky Lightweight Texture
Fast-absorbing and comfortable for everyday skincare rituals.

06

艶テクノロジー

Powered by TSUYA Technology
Inspired by the Japanese philosophy of radiant, healthy-looking skin through hydration and balance.

KUJI TSUYA LINE

Signature Ingredients

🌸 01. 桜エキス(Sakura Extract)

Prunus Serrulata Flower Extract

日本語
日本の桜由来の美容成分。肌をみずみずしく整え、なめらかで透明感のある印象へ導きます。

English
Derived from Japanese cherry blossoms, Sakura Extract helps condition the skin and promotes a fresh, smooth, and naturally radiant-looking complexion.


🌹 02. ローズ花エキス(Rose Petal Extract)

Rosa Flower Extract

日本語
肌にうるおいを与え、乾燥を防ぎながら、やわらかく上品な肌へ整えます。

English
Rose Petal Extract helps moisturize the skin while leaving it soft, refreshed, and delicately conditioned.


💧 03. ヒアルロン酸

Hyaluronic Acid

日本語
高い保湿力で角質層までうるおいを届け、乾燥を防ぎます。

English
Known for its exceptional moisture-binding properties, Hyaluronic Acid helps keep skin hydrated, soft, and comfortable.


 

✨ 04. ナイアシンアミド

Niacinamide (Vitamin B3)

日本語
肌をなめらかに整え、明るく均一感のある印象へ導きます。

English
Niacinamide helps improve the appearance of skin texture while promoting a smoother and more even-looking complexion.


💎 05. コラーゲン

Liquid Collagen

日本語
肌にうるおいを与え、ハリのあるなめらかな印象へ導きます。

English
Liquid Collagen helps maintain moisture, supporting skin that looks plump, smooth, and supple.


🌿 06. アロエベラ葉エキス

Aloe Vera Leaf Extract

日本語
みずみずしい保湿感で肌を整え、毎日のスキンケアをサポートします。

English
Aloe Vera helps hydrate and condition the skin, providing a refreshing and comfortable feel.


🍇 07. クコ果実エキス

Goji Berry Extract

日本語
植物由来の美容成分が肌を健やかに保ち、いきいきとした印象へ導きます。

English
Goji Berry Extract is rich in naturally occurring botanical compounds that help maintain healthy-looking skin.


🫒 08. オリーブ果実油

Olive Fruit Oil

日本語
肌をしっとり包み込み、乾燥から守りながら、やわらかな肌へ整えます。

English
Olive Fruit Oil nourishes the skin with lightweight moisture, helping maintain softness and comfort.


🌱 09. スクワラン

Squalane

日本語
肌のうるおいを保ち、なめらかでしなやかな肌へ導きます。

English
Squalane helps support the skin's moisture barrier, leaving the complexion smooth, silky, and well-conditioned.


🌸 TSUYA Technology

日本語

KUJI TSUYA Line 独自の「艶(TSUYA)」コンセプトは、日本の美容哲学に着想を得ています。植物由来美容成分・保湿成分・コラーゲンを組み合わせ、うるおい、なめらかさ、自然な艶のある印象へ導きます。

English

TSUYA Technology is inspired by the Japanese philosophy of 艶 (TSUYA)—skin that appears naturally hydrated, smooth, and luminous. The formula combines botanical extracts, moisture-rich ingredients, and collagen to help reveal a healthy-looking, radiant complexion.

Full Ingredient List (INCI)
+
No. 日本語 English (INCI)
01Aqua (Water)
02グリセリンGlycerin
03ナイアシンアミドNiacinamide
04ローズエキスRose Extract
05ソメイヨシノ葉エキスPrunus Yedoensis Leaf Extract
06アロエベラ葉エキスAloe Barbadensis Leaf Extract
07アデニウムオベスム葉細胞エキスAdenium Obesum Leaf Cell Extract
08クコ果実エキスLycium Barbarum Fruit Extract
09ヒアルロン酸NaSodium Hyaluronate
10ヒアルロン酸Hyaluronic Acid
11水溶性コラーゲンSoluble Collagen
12スクワランSqualane
13オリーブ果実油Olea Europaea (Olive) Fruit Oil
14ジェランガムGellan Gum
15カルボマーCarbomer
16ポリソルベート20Polysorbate 20
17プロパンジオールPropanediol
18フェノキシエタノールPhenoxyethanol
19エチルヘキシルグリセリンEthylhexylglycerin
20トリエタノールアミンTriethanolamine
21EDTA-2NaDisodium EDTA
22赤色102号(CI 16035)CI 16035
Notice
Ingredients are listed according to the International Nomenclature of Cosmetic Ingredients (INCI). Product formulations may be updated from time to time. Please refer to the product packaging for the most current ingredient declaration.
日本品質

日本の美しさ、 未来のスキンケア。

Made in Japan

Crafted in Japan, the KUJI TSUYA Line combines Japanese beauty philosophy with modern skincare innovation. Inspired by the concept of TSUYA (艶), our formulations are designed to help maintain skin that appears hydrated, smooth, and naturally radiant. Each formula is developed using carefully selected ingredients together with advanced cosmetic technology, reflecting Japan's commitment to quality, precision, and continuous innovation. Every bottle represents our dedication to elegant skincare—where traditional beauty values meet the science of tomorrow.

🇯🇵 Japanese Craftsmanship

Developed with attention to detail, precision, and premium cosmetic standards inspired by Japanese skincare expertise.

✨ Advanced Cosmetic Technology

Modern formulation techniques help blend botanical extracts with moisture-rich ingredients for a refined skincare experience.

🌸 TSUYA Technology

Inspired by the Japanese philosophy of radiant-looking skin through hydration, smoothness, and balance.

あなたの艶は、
ここから始まる。

Your TSUYA Glow Begins Here.

日本語

クジ セラムは、KUJI TSUYAラインの中心となる美容液として、 2021年の誕生以来、進化を続けています。

新しい60mlバージョンは、 TSUYAテクノロジーを採用し、 毎日のスキンケアをより豊かで贅沢な美容体験へと導きます。

毎日の一滴が、 あなた本来の美しい艶を育みます。

English

As the signature serum of the KUJI TSUYA Line, Kuji Serum has continued to evolve since its introduction in 2021.

Now upgraded to 60ml and powered by TSUYA Technology, it delivers lasting hydration and a silky, comfortable feel while staying true to the Japanese-inspired philosophy at the heart of the collection.

Every drop brings your skin one step closer to its natural TSUYA Glow.

商品名
Product
クジ セラム
Kuji Serum
内容量
Volume
60 mL / 2.03 fl. oz.
種類
Product Type
保湿美容液
Hydrating Facial Serum
テクスチャー
Texture
軽やかなシルキーエッセンス
Lightweight Silky Essence
対象肌質
Skin Type
すべての肌タイプ
Suitable for All Skin Types
テクノロジー
Technology
TSUYA Technology™
使用方法
Recommended Use
朝・夜のお手入れに
Morning & Evening
原産国
Country of Origin
日本製 🇯🇵
Made in Japan
保管方法
Storage
直射日光・高温多湿を避けて保管してください。
Store in a cool, dry place away from direct sunlight.