SAN FRANCISCO — Hint, Inc., a maker of unsweetened, lightly flavored waters, is introducing a line of products for children. Packaged in 200-ml Tetra boxes, varieties include watermelon, cherry, blackberry and apple. The beverages contain no juice, sugar, sweeteners, colors, calories or preservatives.

“We want to help the whole family lead healthier lives,” said Kara Goldin, founder and chief executive officer of hint. “I love the idea that we have something for children that helps them fall in love with water at an early age. That’s the real inspiration. And we had so much fun creating this special treat just for kids that they can carry around, throw in their lunchbox and enjoy throughout the day. We didn’t have to reinvent the wheel; we took our top three flavors that made us No. 1 plus a special variety of apple we had been saving just for the kids, and we reimagined and redesigned the packaging … and wow, I wish we had had this when my kids were super young.”

The products may be found online at and will be available soon in Costco, grocery and specialty retailers.