Collaboration with Oyako Smile Co. Fluffy when mixed, a bath bomb when rolled?! Introducing "Neruneruneru Bath Bomb," an educational bath product.

Norld Corporation (Head Office: Chofu City, Tokyo) will launch "Manaburo Neruneruneru Bath Bomb," a bath product created in collaboration with Oyako Smile LLC (Head Office: Osaka City, Osaka), a venture company originating from Rohto Pharmaceutical Co., Ltd., starting March 27, 2026 (Friday). By mixing two types of powder, you can create foam, or roll and solidify it to make a bath bomb.

We propose an opportunity to expand bath time into a "learning through play" experience, fostering parent-child communication.

Bringing "Bath x Learning" into Daily Life through Collaboration with Oyako Smile Co.

This product was realized through a collaboration between Oyako Smile Co.'s desire to increase "opportunities for communication through science play" in daily life with parents and children, and our company's "Manaburo" educational bath products, which allow learning through play.

Incorporating Oyako Smile Co.'s expertise in parent-child communication, the product is designed to spark children's "Why?" and "I want to try!" questions. We propose it as a bath product where observation and conversation naturally expand in the relaxing environment of the bath, and the experience directly leads to learning. With a unique collaborative perspective, we also devised ways for parents to engage and enjoy with their children at home. Make daily bathing a little more special.

Mix to Play with Foam, Solidify to Make a Bath Bomb

Neruneruneru Bath Bomb is a bath product where you mix the included Powder 1 and Powder 2 with a special spoon.
By putting the powders in a basin and adjusting the amount of water, you can enjoy two ways of playing. Add a specified amount of water, mix, and roll to solidify it into a "bath bomb," or add a larger amount of water and mix to enjoy it as "fluffy foam."

Finally, put it in the bathtub to dissolve and enjoy your bath time while observing the fizzing.

Sparking Intellectual Curiosity with the MiniBook

The included miniBook contains instructions for making...