坂口健太郎の美容法・健康習慣|保湿・フェイスパック・筋トレ・食生活・入浴

Kentaro Sakaguchi's Beauty & Wellness | Skincare, Fitness & Diet

OBARASOTARO

Clear-looking skin, a tall, slender figure, and a gentle smile. Former model and actor Kentaro Sakaguchi combines a naturally relaxed presence with a sophisticated sense of style. In recent years, his career has expanded beyond Japan, with appearances in Korean and other international productions.

But what beauty practices and wellness habits does Sakaguchi value in his everyday life?

Interestingly, he has admitted that skincare was not a major concern for him in his twenties. As he entered his thirties, however, he became more conscious of moisturizing. In 2025, he also revealed that he purchases lip balm, sheet masks, and vitamins while visiting South Korea.

For his acting roles, Sakaguchi has explored four different martial arts, including Brazilian jiu-jitsu and wrestling. He has also built muscle and adjusted his physique to suit the characters he portrays.

Outside work, he enjoys coffee and Korean food, and turns to exercise and bathing as ways to refresh himself. He also appreciates meals with friends and quiet moments spent alone.

Drawing on interviews and official sources published between 2018 and 2026, this article explores Kentaro Sakaguchi's skincare routine, hairstyles, fitness training, eating habits, bathing rituals, and approach to relaxation.

We will also look at his filming experience in New Zealand and six surprising facts that reveal more of his personality.

1. Kentaro Sakaguchi's Skincare and Beauty Routine: How His Approach Has Changed with Age

One of the most interesting things about Kentaro Sakaguchi's approach to beauty is that he was not always particularly interested in skincare.

Looking at his comments over the years reveals a gradual change, from his first meaningful experience with skincare to a growing interest in moisturizing and purchasing beauty products during trips to South Korea.

From His First Skincare Experience in 2018 to a Greater Focus on Moisturizing in His Thirties

In 2018, Sakaguchi became the face of Minon Men, a men's skincare range from Daiichi Sankyo Healthcare.

In an official interview released at the time, he openly admitted that he had rarely paid much attention to skincare before taking on the role.

He explained that even when his skin was dry, he assumed that was simply its usual condition and therefore did not give it much thought.

However, after trying the products at home as part of his involvement with the brand, he noticed that his skin felt more moisturized than usual.

The experience helped him recognize something about his skin that he had previously taken for granted.

In the same interview, he also spoke about how men's skin comes into contact with razors and other everyday sources of friction, highlighting the importance of considering skincare suited to individual needs.

This was his personal experience in 2018 and should not be interpreted as confirmation of the products he currently uses.

In August 2023, Sakaguchi spoke again about his changing attitude toward skincare during an event announcing his appointment as a campaign ambassador for the Korean skincare brand ma:nyo.

He explained that beauty had not been a major concern during his teenage years or twenties, but that he had become increasingly aware of moisturizing as he grew older.

One particularly interesting example involved the dryness of hotel rooms while traveling for filming.

In the past, he had rarely paid attention to dry indoor conditions. As he became more interested in caring for his skin, however, he started noticing how different environments could affect the way his skin felt.

For an actor who frequently travels between filming locations and stays in hotels, this was a practical discovery shaped by his working life.

From discovering skincare in 2018 to becoming more conscious of moisturizing in his thirties, Sakaguchi's experience shows how his approach to personal care has developed over time.

Lip Balm, Sheet Masks, and Vitamins: Beauty Products He Purchases in South Korea

In May 2025, Sakaguchi shared more specific details about the beauty and wellness products he purchases.

He was appointed an Honorary Ambassador for Korean Tourism at an event organized by the Korea Tourism Organization during Expo 2025 Osaka, Kansai.

During the talk session, he was asked what he likes to buy when visiting South Korea.

His answers included lip balm, sheet masks, and vitamins.

The story behind his interest in vitamins was particularly memorable.

While filming in South Korea, a director asked whether he was taking vitamins. Sakaguchi replied that he was not taking them at the time, and the director recommended trying them.

That conversation encouraged him to start purchasing vitamins during his visits.

It is a small but revealing example of how everyday conversations on an international film set have influenced his personal interests.

The official announcement did not identify specific brands of lip balm or sheet masks, or provide details about the vitamin products, ingredients, or amounts involved.

These items are therefore presented as products Sakaguchi said he purchased in 2025, rather than as a detailed personal regimen.

Individual nutritional needs vary, and vitamin supplements are best considered in the context of a person's overall diet and circumstances.

For everyday skincare, it is also helpful to choose moisturizing products suited to one's skin and environment, while considering sun protection through sunscreen, hats, and appropriate clothing.

Sakaguchi's comments illustrate a growing interest in beauty and personal care as his experiences and priorities have changed with age.

Going Blond: Enjoying a Change of Hairstyle and Image

Hairstyles offer another interesting insight into Sakaguchi's approach to appearance.

In the 2017 drama Tokyo Tarareba Girls, he portrayed KEY, a character known for his blond hair.

The hairstyle attracted attention because it created a striking contrast with Sakaguchi's familiar, naturally dark-haired appearance.

In May 2025, he also spoke about another change to blond hair at the event celebrating his appointment as an Honorary Ambassador for Korean Tourism.

According to Sakaguchi, his hair was originally black during a Korean tourism promotional shoot.

When some extra time became available, he decided to try a different look.

The change to blond hair was not part of the original plan. Instead, it grew out of a spontaneous idea during the shoot.

Sometimes Sakaguchi changes his appearance to portray a character, while at other times he simply enjoys trying something different.

In a 2022 interview with Hot Pepper Beauty, he also shared his thoughts on women's hairstyles.

Rather than preferring one particular hairstyle, he said he finds it attractive when someone has recently cut their hair and seems excited by the change.

For him, a new hairstyle can reveal something about a person's mood and personality.

These stories offer a glimpse of Sakaguchi's appreciation for changing one's appearance and enjoying a fresh style.

2. Kentaro Sakaguchi's Fitness and Martial Arts Training: Transforming His Physique for Acting Roles

Although Kentaro Sakaguchi is known for his tall, slender build, he has undertaken serious strength training and martial arts practice for acting roles.

What makes his approach particularly interesting is that his goal has not always been to build more muscle. Instead, he has adjusted his physical appearance to suit the personality and circumstances of each character.

Training in Four Martial Arts, Including Brazilian Jiu-Jitsu and Wrestling

In a March 2022 interview with Hot Pepper Beauty, Sakaguchi explained that he had been working on strength training and studying martial arts while preparing for action-oriented projects.

He specifically mentioned four martial arts disciplines:

  • Brazilian jiu-jitsu: A grappling-based martial art that emphasizes positioning, control, and techniques performed on the ground.
  • Wrestling: A competitive discipline involving grappling, takedowns, and the controlled use of balance and body positioning.
  • Shoot boxing: A combat sport incorporating punches, kicks, throws, and other standing techniques.
  • Systema: A martial art originating in Russia that places emphasis on movement, breathing, posture, and adaptability.

Each discipline requires a different set of skills, making his experience across four martial arts particularly impressive.

He also explained that after developing a stronger physique for action roles, he sometimes needed to reduce the muscle he had gained when portraying a more vulnerable young man, as in the film The Last 10 Years.

A physically capable action character and a troubled young man living an ordinary life may require very different appearances.

For Sakaguchi, adapting the way his body looks and moves is part of creating a convincing character.

During the same 2022 interview, he also discussed how he switches between roles.

He explained that putting on a costume, entering the filming location, and interacting with his fellow actors often helps him transition naturally into a character.

Even as he takes on a wide range of roles, he values the distinction between his working life and his personal life.

Taking on an Action-Oriented Detective Role in the 2026 Drama kiDnap GAME

In 2026, Sakaguchi took on a leading role in the Fuji Television drama kiDnap GAME.

He plays Toshiro Niide, a detective whose wife has been kidnapped.

The story begins with a series of kidnappings occurring across seven Asian cities.

Tokyo, Seoul, Taipei, Singapore, Bangkok, Naha, and Manila serve as the settings for a dangerous game in which the characters fight to save the people they love.

Niide is portrayed as a talented detective with a strong sense of justice and an impressive arrest record.

He is also someone who may take considerable risks when pursuing a suspect.

The production involved filming in Japan and other international locations, with actors and crew members from different countries and regions working together.

Having previously trained in martial arts and worked on action projects, Sakaguchi brought a background of physical performance to this large-scale international drama.

The Fuji Television announcement used for this article provides information about the character, story, and production. Specific weight changes and detailed training routines for this role are therefore not presented as verified figures.

Golf and the Gym: An Active Way to Spend a Day Off

Physical activity is not limited to Sakaguchi's acting preparations. He also enjoys exercise during his personal time.

In a 2025 interview with VOGUE JAPAN, he described his ideal day off.

He would start by playing golf early in the morning, return home around lunchtime, head to the gym, and then enjoy a meal with friends.

Going to the gym after a morning of golf sounds like a remarkably active way to spend a day off.

In the same interview, he also identified exercise as one of the things that helps him feel refreshed, both physically and mentally.

For Sakaguchi, physical activity has appeared in two different parts of his life: training for a role and enjoying movement for its own sake.

His comments suggest that exercise is something he appreciates beyond the demands of acting.

3. Kentaro Sakaguchi's Diet and Eating Habits: Korean Food and a Love of Coffee

Kentaro Sakaguchi's comments about food reveal that he enjoys his favorite dishes and values the time spent eating.

His experiences in South Korea are especially interesting, as he has shared several detailed stories about discovering and enjoying local cuisine.

Kalguksu or Gomtang for Breakfast and Korean Barbecue for Dinner

At a Korea Tourism Organization event in May 2025, Sakaguchi spoke about what he likes to eat while staying in South Korea.

He explained that he often enjoys kalguksu or gomtang in the morning and Korean barbecue in the evening.

Kalguksu is a Korean noodle dish featuring wheat noodles served in a warm broth.

Gomtang is a comforting soup traditionally prepared by simmering beef and other ingredients.

Sakaguchi said he frequently enjoyed these dishes during his time in Korea.

He also shared a memory of eating ramen beside the Han River in Seoul.

Enjoying noodles outdoors on a beautiful day made the experience feel particularly special to him.

In his 2025 VOGUE JAPAN interview, he recalled another Korean food experience following a filming session that continued until around 6 a.m.

After the overnight shoot, he went out for kalguksu and gamjatang.

Gamjatang is a hearty Korean stew commonly prepared with pork bones, potatoes, and other ingredients.

The meal was memorable partly because it followed a long night of work.

These stories show how Sakaguchi makes time to enjoy Korean food while working abroad.

As an Honorary Ambassador for Korean Tourism, his enthusiasm for local cuisine also offers a personal way of introducing the country's food culture.

Black Iced Coffee Even in Winter: His Everyday Coffee Preference

Coffee is another recurring favorite in Sakaguchi's daily life.

In his 2025 VOGUE JAPAN interview, he mentioned black iced coffee as something he brings to filming locations.

Interestingly, he enjoys iced coffee even during winter and carries it in a tumbler.

He also named coffee as one of the things he likes to have when starting his day.

When asked about a moment in the day that makes him feel relaxed, Sakaguchi chose mealtime.

He enjoys thinking about what he will have for dinner.

His ideal day off also includes a meal with friends after a morning of golf and a visit to the gym.

From coffee to satisfying meals and time with people he enjoys being around, his preferences reveal an appreciation for simple everyday pleasures.

Sakaguchi has not provided a verified daily coffee intake or a detailed hydration schedule in the sources used for this article. Caffeinated drinks are best enjoyed with individual preferences, well-being, and daily routines in mind.

4. Kentaro Sakaguchi's Bathing and Relaxation Habits: Finding His Own Ways to Unwind

With filming commitments in Japan and abroad, Kentaro Sakaguchi leads an active professional life.

His interviews also offer a glimpse into the everyday activities he enjoys when he wants to refresh himself, including exercise, bathing, eating, and talking with other people.

Exercise, Baths, Good Food, and Conversation

In a 2025 interview with VOGUE JAPAN, Sakaguchi was asked what he does to refresh himself physically and mentally.

His answers included exercise and taking a bath.

When his mood feels heavy, he also enjoys eating something delicious.

Conversation is another way he likes to refresh himself.

Moving his body, taking a bath, enjoying a meal, and talking with someone are all familiar activities that can fit naturally into everyday life.

In the same interview, he also admitted that he enjoys spending time alone without doing very much.

He seems comfortable with both lively social occasions and quiet moments by himself.

When asked what success means to him, he gave an answer that reflected the importance of maintaining a gentle, peaceful state of mind.

His response suggested that how he feels within himself matters alongside professional achievements and recognition from others.

The activities Sakaguchi mentioned are everyday pleasures that people can adapt to their own preferences and lifestyles.

Watching Scary Videos Late at Night: An Unexpected Side of His Home Life

In his 2025 VOGUE JAPAN interview, Sakaguchi shared a surprising detail about how he sometimes spends time at home.

He enjoys watching scary YouTube videos late at night while eating ramen.

It is a playful and somewhat unexpected pastime for someone often associated with a calm, gentle public image.

When asked what frightens him, he also mentioned sharks.

At the same time, he enjoys going into the sea and is a big fan of the film Jaws.

That combination of fear and fascination reveals a slightly mischievous side of his personality.

Sakaguchi has also described himself as someone who has generally been optimistic and positive since childhood.

Although he often portrays characters involved in tense or emotionally demanding situations, his time at home can include simple pleasures such as enjoying food and entertaining videos.

This late-night activity is presented as something he mentioned enjoying in 2025, rather than as a recommended sleep routine.

For rest and sleep, it is helpful to consider one's individual schedule, physical condition, and a comfortable environment.

5. Family, Hobbies, and New Zealand: The Natural Charm of Kentaro Sakaguchi

Kentaro Sakaguchi's appeal extends beyond skincare and fitness.

His memories of family, creative hobbies, relationships with colleagues, and overseas filming experiences reveal other interesting aspects of his personality.

Family Memories and the Importance of Connecting with Others

During his 2025 VOGUE JAPAN interview, Sakaguchi shared a heartwarming childhood memory.

When he was around three or four years old, he drew a panda on the floor of his family home using crayons.

He thought his parents might scold him.

Instead, they praised his drawing.

The story has stayed with him as a memorable example of his parents responding warmly to his childhood creativity.

As an adult, Sakaguchi also values communication when building relationships at work.

Rather than spending all his time alone in his dressing room, he often enjoys talking with the staff on set.

He has even described checking what is being served for lunch and sharing the information with people around him.

When discussing his work in South Korea, he has also reflected on how differences in language and culture felt less intimidating once he began working with people on set.

Approaching others with respect and maintaining open communication appear to be important parts of how he collaborates on international productions.

Drawing, Piano, and His Filming Experience in New Zealand

Drawing is another activity Sakaguchi enjoys.

In his 2025 VOGUE JAPAN interview, he explained that he had created drawings of landmarks representing cities he visited during his Asian fan meetings.

One of these was a detailed illustration of a Korean palace.

He completed it using a ballpoint pen in approximately 30 to 40 minutes.

He seemed pleased with the result and spoke about his artistic ability with a touch of humor.

Sakaguchi also learned to play the piano when he was in preschool.

As an actor, he has subsequently played characters who perform on the piano, giving him opportunities to revisit something he experienced in childhood.

Beyond acting, his interests in drawing and music show that he has enjoyed different forms of creative expression.

Sakaguchi also has a direct connection to New Zealand.

In an October 2024 interview with GOETHE, he reflected on filming the Korean drama What Comes After Love and the Netflix series Beyond Goodbye.

The production periods of these projects overlapped to some extent, and Sakaguchi explained that he traveled from the bitter cold of South Korea to the summer warmth of New Zealand for filming.

Moving from a Korean winter to summer in the Southern Hemisphere meant working in two dramatically different environments within a relatively short period.

It is a distinctive experience made possible by his increasingly international acting career.

He also explained that arriving on set and interacting with the actors around him helps him switch naturally between characters.

For Sakaguchi, his own experiences and feelings can become part of how he expresses a role.

Although Beyond Goodbye is primarily presented as a story set in Hokkaido and Hawaii, New Zealand was also a real filming location that Sakaguchi visited for the production.

His comments offer an interesting glimpse into how he approaches acting while moving between different countries, climates, and production teams.

6 Surprising Facts About Kentaro Sakaguchi

Beyond his beauty and wellness habits, Sakaguchi has shared several charming and unexpected details about his personality. Here are six facts drawn from his interviews.

Fun Fact 1: He Somehow Keeps Collecting Playing Cards

When asked in a 2025 VOGUE JAPAN interview which items he tends to accumulate, Sakaguchi answered playing cards. It is an unexpected thing to collect, although he did not reveal how many decks he owns or exactly how he collects them.

Fun Fact 2: He Loves the Film Jaws

Although Sakaguchi considers sharks frightening, he is a big fan of Jaws. His ability to enjoy something he also finds scary reveals a playful side of his personality.

Fun Fact 3: His Favorite Physical Feature Is His Large Hands

When asked to name something he likes about himself, Sakaguchi chose his large hands. The straightforward answer offers a refreshing glimpse of how he views his appearance.

Fun Fact 4: Ceiling Height Matters When Choosing a Home

When asked what he considers most important when choosing a place to live, he answered ceiling height. For someone as tall as Sakaguchi, an appreciation for spacious interiors seems particularly fitting.

Fun Fact 5: He Does Not Try to Win Conversations

When discussing what matters to him in conversation, Sakaguchi explained that he does not approach discussions as something he needs to win. His answer reflects an appreciation for listening and respecting different perspectives.

Fun Fact 6: His Favorite Word Is Sukoyaka

One of Sakaguchi's favorite Japanese words is sukoyaka, meaning healthy, sound, or wholesome. He explained that the word contains the kanji 健, which also appears in his given name, Kentaro. It is an especially fitting detail for an article about beauty and wellness.

Conclusion: What Kentaro Sakaguchi's Beauty and Wellness Habits Reveal

Looking at Kentaro Sakaguchi's beauty and wellness habits reveals how his approach to personal care has evolved alongside his age and career.

Although skincare was not a major priority in his twenties, he became more conscious of moisturizing in his thirties. He has also spoken about purchasing lip balm and sheet masks while visiting South Korea.

As an actor, he has studied several martial arts, including Brazilian jiu-jitsu and wrestling, and adjusted his physical appearance to suit different roles. In 2026, he took on a detective role in a large-scale international drama.

Outside work, he enjoys coffee and Korean cuisine, while appreciating exercise, bathing, and conversations with people close to him as ways to refresh himself.

His international filming experiences, including time in New Zealand, also show how he adapts to new environments while valuing his relationships with fellow actors.

His experiences suggest that a personal approach to beauty and wellness can develop gradually, beginning with greater awareness of one's skin, body, and everyday preferences.

Alongside his commitment to acting, Sakaguchi makes room for favorite foods, hobbies, and personal connections.

That relaxed, unpretentious attitude offers an appealing perspective on finding beauty, wellness, and enjoyment in everyday life.

References

This article is based on interviews with Kentaro Sakaguchi and official announcements from companies and broadcasters. Some of the habits and experiences described reflect the time at which the original interviews were conducted.

  1. Daiichi Sankyo Healthcare (2018) — Minon Men campaign and Sakaguchi's personal skincare experience (Japanese)
  2. ORICON NEWS (2023) — Moisturizing and awareness of dry hotel environments (Japanese)
  3. Korea Tourism Organization (2025) — Beauty purchases, Korean food preferences, and a blond-hair makeover (Japanese)
  4. Hot Pepper Beauty (2022) — Four martial arts, changes in physique, and thoughts on hairstyles (Japanese)
  5. VOGUE JAPAN (2025) — Exercise, bathing, meals, coffee, hobbies, and personal trivia (Japanese)
  6. GOETHE (2024) — Filming in South Korea and New Zealand and transitioning between acting roles (Japanese)
  7. Fuji Television (2026) — Official announcement of kiDnap GAME, its detective character, and international production (Japanese)

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