As a joint work of Chongqing Dengkang Company and the Affiliated Hospital of Chongqing Medical University, the strength of Lengshuling toothpaste has always been underestimated by the outside world. For people with sensitive teeth, Lengsouring is a well-deserved leader of domestic professional anti-allergy toothpaste brands. However, compared with Colgate, Crest and other foreign brands that have made great noise, Leng Su Ling is still much more low-key in the mainstream toothpaste market.
 
In terms of anti-allergic technology, the anti-allergic principle adopted by Procter & Gamble (using stannous-fluorine system) and Shuda (using strontium acetate, potassium nitrate, and NovaMin technology) is different, and it uses the exclusive patented technology of potassium nitrate and strontium chloride to achieve dual anti-allergic effects. Similar to Comfort, Lengshuling is also divided into three levels of anti-allergy levels, corresponding to three series of products: basic anti-allergic, dual anti-allergy and professional anti-allergic.
 
The basic anti-allergy is actually a heavy anti-allergy using potassium strontium nitrate or strontium chloride alone, and the representative product is the instant anti-allergy pump type toothpaste, which is similar to the principle of comfortable and fast care toothpaste, which is an emergency anti-allergy to the teeth that have produced soreness, and the technical principle is single, and long-term use is not recommended. At present, most of the styles on sale belong to double anti-allergies, and the patented technology of potassium nitrate and strontium chloride has been adopted, and the anti-allergic effect is remarkable. In the selection of the main ingredients of toothpaste, the dual anti-allergy series uses hydrated silica abrasive, which is milder and more delicate than most domestic toothpastes that use calcium carbonate abrasives, and has a better brushing experience.
 
The third level of professional anti-allergy series mainly includes two types of toothpaste, Xunkang, which also use potassium nitrate and strontium chloride of the dual anti-allergy series in the technology of anti-allergy ingredients, but what is more outstanding than the double anti-allergy series is that this series of toothpaste uses a milder and higher cost calcium dicalcium phosphate dihydrate as a friction agent, and Xunkang is also equipped with a surfactant with a certain cleaning strength, which has a better deep cleaning effect on the teeth, and the multi-bubble use experience is also more in line with the brushing preferences of Chinese people.
 
The disadvantage is that in order to cater to the market trend, Leng Suling can only drive sales by launching various flavors of toothpaste in recent years, which also leads to the addition of more spices to some of the main taste styles, which is not streamlined enough for sensitive mouths, and is inferior to the more rigorous and comfortable overall toothpaste composition. Due to keeping up with the fashion trend, Leng Su Ling has also launched a pump type compression toothpaste, which is currently only available in three types: Polar White, Instant Antiallergy and Specialized Antiallergy, with an average price of about 20-30 yuan. The price of ordinary tube toothpaste is less than 20 yuan, which is one of the most affordable brands in functional toothpaste, and has a high cost performance.