Daichi Shiozaki Stars in New Web CM for C1000 Vitamin Lemon! "Gokigen More, Continuing Life!" "The Secret to Feeling Great" Campaign to Launch June 29, 2026 (Mon)

House Wellness Foods Co., Ltd. will launch a new web commercial (30-second and 15-second versions) for "C1000 Vitamin Lemon" featuring Daichi Shiozaki (Shiozaki Daichi) on various digital platforms starting June 29, 2026 (Mon).

【From the new C1000 Vitamin Lemon web CM "The Secret to Feeling Great"】 Available from 4:00 PM on June 29, 2026 (Mon) at the following site: https://c1000.jp/

About the New Web CM

The commercial expresses a world where enjoying daily life with "C1000" brings a slightly more positive and cheerful mood.

In the new CM, Daichi Shiozaki plays a high school student, portraying various moments of youth where a sense of cheerfulness spreads with "C1000." From playful moments with classmates in the classroom to laughing heartily together, Shiozaki's diverse cheerful expressions and lively scenes are highlights.

With the new tagline "Gokigen More, Continuing Life!", the CM conveys the message: "Youth is fleeting, so let's live every day cheerfully with C1000."

Overview of the New Web CM

Title: C1000 Vitamin Lemon "The Secret to Feeling Great" Campaign

Starring: Daichi Shiozaki (M!LK)

Release Start: From June 29, 2026 (Mon)

Platforms: YouTube, X, TikTok, Instagram, and various digital platforms

Video URL: Available from 4:00 PM on June 29, 2026 (Mon) at the following site:

https://c1000.jp/

Behind-the-Scenes Highlights

Director and crew dazzled by Shiozaki's comedic performance

Scenes of Shiozaki dramatically raising his hand during class and making funny faces to make friends laugh brought instant brightness and energy to the set.

Shiozaki's natural and comedic reactions were so infectious that they made everyone on set smile. The director repeatedly exclaimed, "That's amazing!" "Perfect, absolutely perfect!" and the entire crew was beaming.

Shiozaki's charm—his earnestness and comedic flair—is packed throughout the CM.

Exclusive Interview with Daichi Shiozaki!

To commemorate the launch of the new C1000 web CM, we are releasing an exclusive interview with Daichi Shiozaki. He shares his feelings upon landing the CM role, recent moments that made him cheerful, and his secrets to staying in good spirits.

The full interview and behind-the-scenes footage will be released on July 9, 2026 (Thu) on the official X (https://x.com/C1000_jp) and brand website (https://c1000.jp/). Don't miss the behind-the-scenes of the CM shoot and stories you can only hear here.

―――― How did you feel when you found out you'd be in the CM?

I was so happy! Happy C1000! My favorite is "C1000 Vitamin Lemon Collagen & Hyaluronic Acid"—I used to drink it all the time!

―――― When do you feel most cheerful?

Right after a bath. I use my bath time to wash away all the fatigue from the day, reflecting on what happened.

And when I get out and start drying my hair—that might be the moment I feel happiest.

I think to myself, "Now I can sleep well, C!" or "I'll be refreshed and energetic tomorrow morning, C!"

―――― What if you had a C1000 Vitamin Lemon right after your bath?

Happy C1000! That would be Happy C1000! If I had C1000 after my bath, it would be super-duper Happy C1000!!

―――― What did you think after trying C1000 Vitamin Lemon?

It's delicious.

The fizzy carbonation is super refreshing, and the taste of vitamin C and lemon spreads throughout my mouth—it really feels like Delicious C1000! (laughs)

After drinking it, I feel incredibly refreshed and uplifted. It's really delicious.

In the full interview video, Shiozaki also talks about "recent moments that made him cheerful," "his secrets to staying cheerful," "memories from high school," and "stories from back then." His natural, down-to-earth conversation style—so characteristic of Shiozaki—offers deeper insight into the CM's theme of "feeling cheerful."

The full interview and behind-the-scenes footage will be released on July 9, 2026 (Thu).

Profile of the New Web CM Talent

Daichi Shiozaki (Shiozaki Daichi)

Born September 11, 2000.

Currently gaining widespread attention, Shiozaki has appeared in numerous hit dramas such as "Ignite -Outlaws of the Law-" and "My Dress-Up Darling," and is a regular on multiple popular variety shows.

He is a member of the five-member dance and vocal group "M!LK," which made its debut appearance at the 76th NHK Kōhaku Uta Gassen.

TV Appearances

・"Yoru no Brunch" (Regular)

(2026.04~)

・"Limit Break! Yatte M!LK" (Title-sponsored show)

・"Aizukai Shokudō" (April 7, 2026 broadcast)

・"TV x Mrs." (April 13, 2026 broadcast)

etc.

About the Product

Less than 10% fruit juice

● C1000 Vitamin Lemon

"C1000" is a brand of soft drinks (including carbonated beverages) by House Wellness Foods. Since its launch in 1990, it has been loved as "the go-to for vitamin C," containing the vitamin C equivalent of about 50 lemons per bottle (※calculated as fruit juice). With its refreshing lemon flavor and easy drinkability, C1000 has long supported daily health and refreshment. Today, the brand offers a wide range of products tailored to different lifestyles, including zero-sugar and citric acid-enriched varieties.

C1000 Brand Website: https://c1000.jp/

C1000 Official Instagram: https://www.instagram.com/c1000.jp/

C1000 Official X: https://x.com/C1000_jp