In the 80s of the 19th century, after the commercialization of dental floss, Johnson & Johnson obtained the first patent for dental floss, which was made of the same material as the medical suture silk at the time. In 1972, Johnson & Johnson launched the oral care brand REACH, selling toothpaste, toothbrushes, mouthwashes and dental floss products, and its share of the Japanese dental floss market is also among the highest.
 
Johnson & Johnson dental floss can be divided into mass series and high-end series. Volkswagen's REACH business in the Asia-Pacific region was acquired by South Korea's LG in 2016, and LG's version of REACH dental floss is currently available in China. The high-end series Gentle GUM Care, ULTRACLEAN, Cool Mint, Healthy White, and Total Care have all been transferred to Johnson & Johnson's brand Listerine, and the products have not changed, but the packaging has been updated. REACH dental floss is available on major e-commerce platforms, but at present, Listerling dental floss has not been officially introduced in China.
 
REACH is Johnson & Johnson's basic series of dental floss, which is made of the same cost-effective nylon material as Lion King. Nylon threads are firm and wear-resistant, but not smooth enough, and are usually waxed to improve the astringency of the thread, so it is recommended to use waxed REACH dental floss. This type of dental floss has a wide and flat body, which is more suitable for people with small teeth than the inflated lion floss, and whether it is scented or not can be selected according to personal preference. However, the packaging of this series is not convenient to observe the remaining amount, 55 meters per box, and the reference price is 26 yuan.
 
Listerine dental floss is more versatile. Among them, Gentle GUM Care has a flat and wavy body, which is gentle and non-tight, and is suitable for those with sensitive gums. ULTRACLEAN FLOSS FOCUSES ON CLEANING, AND ITS UNIQUE MICRO-GROOVES TECHNOLOGY MAKES THE DENTAL FLOSS LIKE A RUBBER BAND TO ENHANCE THE CLEANING EFFECT. Both types of dental floss have a color and flavor, Gentle GUM Care has a red and white cinnamon-flavored body, but the packaging is not convenient to check the remaining amount; ULTRACLEAN with mint scent, blue threads that allow users to visualize the soft scale being removed, and the remaining amount of clear packaging at a glance, is only 28 meters per box and costs $2.8, which is much more expensive than the Gentle GUM Care at $2.5 per box of 46 meters.