Hydroxypropyl-β-cyclodextrin (HP-β-CD) works in pet odor removal mainly by physically encapsulating odor molecules. HP-β-CD is a cyclic oligosaccharide derived from starch, with a unique molecular structure: hydrophilic on the outside and a hydrophobic cavity inside. This hydrophobic cavity can encapsulate many odor-causing hydrophobic molecules, forming stable inclusion complexes. As a result, the odor molecules cannot volatilize into the air and be smelled, achieving true odor removal rather than merely masking it with fragrance.

Compared to some traditional odor removal methods, HP-β-CD has obvious advantages:

Applications of HP-β-CD in Pet Grooming Products:

1. High-Efficiency Odor-Removing Spray
By encapsulating odor molecules such as ammonia and hydrogen sulfide with HP-β-CD to form stable inclusion complexes, the odor is directly removed physically rather than masked with a stronger fragrance. "Masking with fragrance" often results in poorer effects. The structure of the inclusion complex is stable, and the encapsulated odor molecules are not easily released, ensuring long-lasting results.
Safety: HP-β-CD is non-toxic and safe. There is no need to worry about pets licking it, and it does not irritate the respiratory tract of pets or humans. It is particularly suitable for cat owners (cats are sensitive to essential oils and chemical fragrances). It also does not leave a sticky feeling or strong fragrance residue on surfaces.
Target Odor Sources: Urine stains, feces, vomit, body odor

2. Pet No-Rinse Foam/Mousse
HP-β-CD can encapsulate the irritating parts of certain essential oils, reducing potential skin irritation while retaining the fragrance and efficacy. HP-β-CD itself is non-irritating to the skin and has good biocompatibility. Even if pets accidentally lick it, it is relatively safe, making it very suitable for no-rinse products.

3. Cat Litter Additive
HP-β-CD can be added in powder form to mineral or plant-based cat litter, or integrated into the cat litter pellets during production. After a cat defecates or urinates, HP-β-CD can immediately capture and encapsulate the odor molecules released, preventing the spread of odor from the source and keeping the air around the litter box fresh.

4. Pet Shampoos and Hair Care Products
The hydrophilic outer cavity of HP-β-CD helps disperse hydrophobic dirt particles on the hair, making them easier to be removed by surfactants. After washing, the hair is cleaner and fluffier. It also helps reduce soap scum and mineral deposits on the hair, making it less prone to tangling, smoother, and shinier. HP-β-CD can slow down the release of fragrance. This means that after rinsing, a small amount of fragrance is continuously and slowly released, allowing pets to maintain a light and pleasant natural fragrance for a long time after washing, rather than a pungent chemical smell.

Zibo Qianhui Biotechnology Co., Ltd. was established in 2006 and is a leading enterprise in the cyclodextrin industry in China. It has been rooted in the Polymer Industry Park of Zibo High-tech Zone for nearly two decades and has built a production quality system covering three major fields: pharmaceutical excipients, food additives, and cosmetic additives. It is one of the few cyclodextrin producers in China that hold both a drug production license (Lu 20240023) and a food production license (SC20137030100489). Qianhui Biotechnology adheres to market demand as the core, specializing and refining, and has successively launched a series of new cyclodextrin derivatives such as hydroxypropyl beta cyclodextrin, sodium sulfobutyl beta cyclodextrin, gamma cyclodextrin, hydroxypropyl gamma cyclodextrin, and methyl beta cyclodextrin. It serves over 2,500 customers, and its products are sold throughout the country and exported to more than 60 countries and regions in Europe, North America, Russia, South America, Southeast Asia, and the Middle East. All products have been widely used and recognized in domestic and international markets.

Innovation potential is transformed into development momentum, and a dual-driven model of "independent innovation + industry-university-research collaboration" has been established: it has jointly established the China Cyclodextrin Application Research Center with China Pharmaceutical University and the "National Key Laboratory of Food Science and Technology Zibo Cyclodextrin Center" with Jiangnan University. It has been recognized as a national "specialized, refined, distinctive, and innovative" small and medium-sized enterprise, a provincial manufacturing single-champion product enterprise, a provincial "gazelle" enterprise, and a provincial specialized, refined, distinctive, and innovative small and medium-sized enterprise. It has won honors such as the "Top 30 High-Growth Enterprises in Zibo High-tech Zone" and the "Outstanding Contribution to Finance Award". The company has become a "One Enterprise, One Technology" R&D center in Shandong Province and a Zibo Cyclodextrin Engineering Technology Research Center. It actively conducts industry-university-research cooperation, jointly establishing the China Cyclodextrin Application Research Center with China Pharmaceutical University and the "National Key Laboratory of Food Science and Technology Zibo Cyclodextrin Center" with Jiangnan University. From 2017 to 2024, it has successively undertaken sub-projects of the National Major New Drug Creation Program, the Key Special Project of "Science and Technology to Support the Economy 2020" of the Ministry of Science and Technology, the Development and Construction Fund Project of the Shandong Peninsula National Independent Innovation Demonstration Zone, the Shandong Provincial Central Guidance Local Science and Technology Development Fund Project, the Shandong Provincial Science and Technology Small and Medium-sized Enterprises Innovation Ability Enhancement Project, and the Zibo High-tech Innovation "Double Ten" Plan. While innovating and developing, the company also attaches great importance to the protection of intellectual property rights. Currently, it has been granted 10 invention patents and 39 utility model patents.

In the future, Qianhui Biotechnology will continue to deepen molecular inclusion technology, comprehensively layout innovation and research and development in the three major fields of pharmaceutical excipients, food, and cosmetics, and strive to build the largest intelligent cyclodextrin production base in Asia in the near future, providing Chinese solutions for the global biopharmaceutical industry.