Lengsuanling

The available reference material provides only limited historical information about Lengsuanling. The brand is identified as a Chinese oral-care name associated with Chongqing and is chiefly recognized for toothpaste aimed at consumers with sensitive teeth. No reliable source in the supplied material establishes the year in which the brand was created, the identity of its founder, the legal entity that first commercialized it, or the ownership changes it may have experienced. Its historical identity appears to have been shaped by specialization. Rather than presenting itself solely as a broad household toothpaste label, Lengsuanling is associated with the practical problem of tooth sensitivity. This focus gives the brand a distinct consumer-facing proposition: reducing discomfort caused by cold, heat, acidic foods, sweet foods, or similar everyday triggers. The available material does not verify the medical or regulatory basis of any individual product claim, so the historical account should be understood as a description of brand positioning rather than an assessment of clinical efficacy. The brand's documented product scope in the supplied material extends beyond toothpaste to toothbrushes and mouthwash. However, no dependable chronology is available for the introduction of these categories, and there is insufficient evidence to identify which variants were first, which products remain active, or how the portfolio has changed over time. There is likewise no source-supported information about advertising campaigns, acquisitions, major distribution agreements, international expansion, public listing, or financial performance. Lengsuanling's official website is listed as https://www.lengsuanling.com. Additional corporate records, archived brand pages, regulatory filings, product packaging, or reputable Chinese-language business reporting would be needed to construct a fuller history. Until such sources are verified, the defensible historical description is that Lengsuanling is a China-based oral-care brand whose public identity is anchored in sensitivity-focused toothpaste and related oral-hygiene products.

Functional oral care centered on sensitivity relief and everyday dental protection.

• Toothpaste

  Anti-sensitivity toothpaste

  The brand's signature category is toothpaste marketed around relief or protection for sensitive teeth. Products in this category are intended for daily oral hygiene while addressing discomfort associated with temperature, dietary, or other common sensitivity triggers. The supplied material does not verify specific formulations, active ingredients, clinical studies, flavors, packaging variants, or launch dates.

• Oral-care accessories

  Toothbrushes

  Toothbrushes are identified as part of Lengsuanling's typical product scope. They extend the brand from treatment-oriented toothpaste into routine mechanical plaque removal and daily oral hygiene. No reliable information is available in the supplied material about brush designs, bristle specifications, specialist sensitivity features, launch timing, or current assortment.

• Oral rinse

  Mouthwash

  Mouthwash is also listed among the brand's typical products. It represents a supplementary oral-care format that may be used alongside brushing, but the supplied references do not establish the precise purposes, ingredients, flavors, variants, or availability of Lengsuanling mouthwash products.

• 2024

  Lengsuanling ‘Yiyan’ toothpaste accused of overstating efficacy in livestreams

  In 2024, Lengsuanling’s “Yiyan” repair toothpaste was accused in livestreams and short videos of implying it could repair cavities, gum recession and other conditions, in a suspected breach of the permitted scope of toothpaste efficacy claims; whether the “Yiyan” trademark constitutes a medicalized implication also sparked controversy. In 2022, a distributor was fined RMB20,000 for claiming that Lengsuanling children’s toothpaste was “edible and swallowable.” Dengkang Oral Care said it had revised its scripts and that “Yiyan” is a registered trademark with a clinical evaluation report; no administrative penalty against the brand owner has been seen.

  Source

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1. 1Lengsuanling official websitelengsuanling.com
2. 2Lengsuanling ‘Yiyan’ toothpaste accused of overstating efficacy in livestreamsfinance.sina.com.cn
3. 3Lengsuanling ‘Yiyan’ toothpaste accused of overstating efficacy in livestreamsnews.qq.com
4. 4Lengsuanling ‘Yiyan’ toothpaste accused of overstating efficacy in livestreamsxiaofei.hangzhou.com.cn