VEVEY, SWITZERLAND — Nestle Health Science has agreed to acquire functional hydration brand Nuun, a portfolio company of private equity firm TSG Consumer Partners, for an undisclosed sum. The transaction is expected to close in the third quarter.

Founded in 2004, Seattle-based Nuun is a maker of low-sugar electrolyte tablets that dissolve in water. The brand offers a range of effervescent tablets and powders formulated with additional minerals and vitamins to promote energy, immunity, relaxation and general wellness benefits. The products are packaged in portable tubes for convenient use.

“Nestle Health Science and Nuun share the same philosophy: Nothing is more important than health and well-being,” said Kevin Rutherford, chief executive officer of Nuun.  “In joining Nestle Health Science, Nuun will further its mission of ‘hydration that empowers the world to move more.’ The Nuun team has built an incredible business and now with the reach, expertise and capabilities of Nestle, I’m confident that together we will grow even more, making people and the planet healthier.”

The addition of Nuun complements Nestle Health Science’s portfolio of active lifestyle nutrition brands, which includes Garden of Life, Boost, Vital Proteins and Persona, among others. The business unit in late April announced plans to acquire some vitamin and supplement brands owned by The Bountiful Co. for $5.75 million. Brands to be included in the transaction are Nature’s Bounty, Puritan’s Pride, Solgar and Osteo Bi-Flex.

“Every day, health-conscious consumers are becoming more aware of how functional hydration products can add to their overall well-being as well as support them during exercise by replacing the minerals that the body loses,” said Greg Behar, CEO of Nestle Health Science. “That growing awareness is reflected in the steady growth of the category. Nuun is a leader in the fast-growing functional hydration category with its high-quality, clean, plant-based products.  We look forward to combining our companies’ expertise to bring Nuun to more people around the world.”