Collection: BLACKLETTERS

Bamboo toothbrushes are not only earth-friendly but also tooth-friendly.
The completely biodegradable material is free from adhesives and chemicals, making it safe and secure for the human body.
This product is truly ethical!
The compact size of the brush makes it comfortable for women and children.
Because bamboo charcoal is incorporated into the brush, you can expect whitening and deodorizing effects.

TENTIAL is a sports technology and creative brand born in 2018.
The mission is to make the world shine brighter by increasing the number of people who believe in their potential and can step forward.

Commitment to Products:

• In a world where athletes can focus on performing at their best in competition, and where energy abounds with motivated individuals engaging in exercise.
• Through our products and services, we aim to create a sustainable world where everyone is involved in sports.
• Follow your dreams and bring out the inner strength of those who challenge you.
• Just as we persevere in the business world, TENTIAL supports those who pursue their dreams and persevere.

In collaboration with a national university, we utilize advanced technology to produce tree essential oil with richer functional ingredients in Hokkaido, Japan.

With consideration for the natural bounty of Hokkaido, we also engage in forestry to nurture nature as an integral part of our business.

Established approximately 50 years ago, we have developed baby goods using organic cotton, known for its gentle touch on baby's skin.

Organic cotton refers to certified cotton that meets global standards for organic farming.