Innovative Night Wellness Brand BARTH Launches Campaign with Voice Actor Yusuke Shirai

Campaign Introduction

BARTH, a rising name in night wellness, has recently kickstarted its promotional campaign titled "Repost for a Cleaner Mouth" featuring popular voice actor Yusuke Shirai. This campaign aligns with the launch of BARTH's first-ever oral care product, the
BARTH Medicinal Bicarbonate Mouthwash set to debut on December 1, 2025. The campaign will commence on December 11, 2025.

The focus of the initiative is on "oral condition," which signifies the importance of maintaining a healthy and positive dialogue in our daily communications. Often, our language may reflect stress and fatigue through negative expressions. Thus, BARTH is encouraging users to engage in a fun activity: reposting videos featuring various characters with "sharp tongues" that Yusuke Shirai voices. The idea is simple—when the campaign accumulates a certain number of reposts, these characters will experience a transformation, expressing pleasant words instead, thanks to the cleaning attributes of BARTH’s mouthwash.

What to Expect from the Campaign

Yusuke Shirai portrays three characters representing everyday scenarios: a boss, a brother, and a boyfriend. Theatre-goers can look forward to how his dynamic voice characterizes their evolution. The campaign invites individuals to participate and share their experiences on BARTH's official social media account, X, boosting community interaction. After the campaign concludes, all videos will be available on the official BARTH YouTube channel, allowing followers to witness the transformation right from their devices.

The Product: BARTH Medicinal Bicarbonate Mouthwash

The BARTH Medicinal Bicarbonate Mouthwash is designed to enhance oral hygiene routines. Priced at ¥1,650 for a 300mL bottle, it promises a refreshing experience with its alcohol-free formulation and mild mint flavor, specifically tailored for nighttime use. The mouthwash harnesses the benefits of bicarbonate to deliver a thorough cleanse, targeting areas that toothbrushes may miss. Further, with the inclusion of active ingredient CPC, it prevents bacterial growth overnight, ensuring users can wake up to fresh breath.

Usage Instructions

Experts recommend using around 10-20mL of the mouthwash before bed, swishing it in the mouth for about 20-30 seconds before spitting it out.

BARTH's Offerings in Night Wellness

As a brand, BARTH emphasizes products that enhance routines from bath time to bedtime, focusing on quality nighttime health. Their offerings range from bath tablets to various skin care products, designed to enrich your experience and provide that extra touch of luxury. With natural therapeutic ingredients drawn from rare bicarbonate mineral springs, BARTH crafts each product with care, promising relaxation and rejuvenation.

Explore the Full Product Line

Aside from the mouthwash, BARTH’s lineup includes:

- Medicinal Bicarbonate Bath Tablets: Inspired by unique mineral springs, these provide soothing warmth while promoting recovery.
- Premium Body Cream: Suitable for both wet and dry skin, ensuring hydration regardless of the moisture level.
- Facial Products: Incorporating natural oils and soothing aromas, products like the facial mask and scrub nourish and care for the skin during the nighttime.
- Aromatherapy Options: Designed to promote restful sleep, their reed diffusers create a serene environment as you wind down.

Conclusion

BARTH is not just about enhancing beauty; it's about establishing wellness in our nighttime routines. By blending unique products with engaging campaigns like the one featuring Yusuke Shirai, BARTH is reshaping how we view nighttime care. For those looking to elevate their everyday rituals, the introduction of the BARTH Medicinal Bicarbonate Mouthwash offers a refreshing new approach to maintaining oral health. Join the fun on BARTH’s social media or visit their website for a more in-depth look at their complete product range. Stay tuned for the launch of the campaign videos on December 11 and see how the characters evolve with BARTH’s innovative care!

Campaign Links:

Explore BARTH Products
From premium bath additives to nourishing skincare, discover how BARTH can enhance your nights.