Bringing the Era of Moisture Care to the Mouth: CERENOVA Strengthens Oral Care Research Based at the Iizuka R&D Center

Developed based on insights from pharmaceutical and skin permeation research, CERENOVA Oil Mouthwash.

Under the theme 'Bringing moisture care to the mouth,' CERENOVA LLC is utilizing the Iizuka Research and Development Center (Iizuka City, Fukuoka Prefecture) as its R&D base starting in May 2026 to advance research on new oral care technologies utilizing oils.

The flagship product, 'CERENOVA Oil Mouthwash,' was developed with the concept of not just 'washing' but 'conditioning with moisture,' and has also been adopted as a hometown tax return gift in Fukuoka City.

Dryness in the mouth, morning stickiness, and discomfort. Due to changes in age and lifestyle environments, an increasing number of people are experiencing oral dryness.

The Fukuoka-based brand CERENOVA was born from the idea of applying skincare concepts to oral care.

A team centered around pharmaceutical researchers has developed an oil mouthwash that spreads throughout the entire mouth with just 1mL.

Development Background The development of this product originated from the developer's own long-standing experience in pharmaceutical and skincare research.

While 'moisturizing' and 'barrier function' are emphasized for the skin, the developer felt it was unnatural that oral care was primarily focused on cleaning and sterilization. This was the starting point of the development.

'Can we care for the inside of the mouth the same way we do for the skin?'

From that question, a mouthwash based on the idea of protecting moisture rather than washing it away was born.

It proposes the concept of 'bacterial conditioning,' focusing on coexistence with the oral flora rather than just eliminating bacteria.

CERENOVA is advancing new oral care research applying skincare concepts. Currently, research and development in the mucosal wellness domain utilizing water-based oil gel technology is also underway.

Full development story here: https://shop.cerenova.jp/blog/2025/12/14/092548

A mouthwash based on the concept of 'not overwashing' that cares for a dry mouth, easy to incorporate into your relaxing time at night.

Iizuka Research and Development Center (R&D Base)

Product Features 1. Designed to spread throughout the mouth with just 1mL The texture changes by mixing with saliva, spreading smoothly throughout the mouth. Because it spreads even in small amounts, it is designed for those who want to avoid overwashing. Unlike traditional oil pulling, a large amount of oil is not required.

2. Domestic pressed rice bran oil × Natural essential oils Domestic pressed rice bran oil is used for the base. It aims for a comfortable feeling that blends well even in a dry mouth. Natural essential oils such as rose geranium create a mild fragrance and a relaxing care time.

3. Mixes with water after use and goes straight down the drain Due to a proprietary formula that emulsifies by reacting with saliva, it can be washed down the drain as is after use (currently patent pending for related technologies). It is also designed to leave less oil in the mouth and have a light aftertaste.

Naturally emulsifies by mixing with saliva, designed for easy handling after use.

Implementation Cases Already Expanding Currently, CERENOVA's oil mouthwash is being introduced and evaluated at dental clinics and beauty salons. Feedback such as 'Low irritation' and 'No concerns about dryness' has been received.

Product Overview Product name: CERENOVA Oil Mouthwash Content: 50mL (approx. 30 uses), 100mL (approx. 60 uses) Country of manufacture: Japan Brand site: https://cerenova.jp Official online store: https://shop.cerenova.jp/

Company Information CERENOVA LLC Location: T&J Building 7F, 2-2-12 Tenjin, Chuo-ku, Fukuoka City, Fukuoka Prefecture R&D Base: Iizuka Research and Development Center (Iizuka City, Fukuoka Prefecture) Instagram: @cerenova.wellness