Pure tea tree oil with exceptional antiseptic and cleaning properties. Custom formulation and bulk factory-direct supply available.
Steam-distilled herbal oil specialized for therapeutic massage and skincare formulas. Increases absorption and skin vitality.
Top-grade warming agent providing a mild and long-lasting heating sensation, optimal for cosmetics and medical patches.
Sourced raw natural botanical oils targeted for relaxation and sleep-aid supplements. Export quality standards guaranteed.
Pure natural single oil, ideal for pharmaceutical formulations and therapeutic ointments, processed under strict quality controls.
Convenient, therapeutic-grade lavender oil in roll-on bottles. Perfect for retail markets, cosmetic brands, and OEM/ODM.
High-concentration ginseng extract for luxury skin revitalizing formulas and natural wellness supplements.
Extracted under low temperature, highly versatile oil suitable for dietary supplements, culinary applications, and skincare.
In modern industrial applications, sensory experience plays a crucial role in product formulation. In the fields of cosmetics, oral care, confectionery, and pharmaceuticals, sensory additives—specifically high-purity cooling agents—are no longer optional enhancers; they are core physiological stimulants. This comprehensive whitepaper explores the biochemical processes behind physiological cooling, the limitations of traditional cooling agents like natural menthol, and the emergence of synthetic alternatives like WS-3 (N-Ethyl-p-menthane-3-carboxamide), WS-23, and menthyl lactate, which provide targeted sensory cooling without unwanted olfactory interference.
The sensation of coolness is not a physical temperature drop; it is a neurological response. Physiological cooling agents function by binding directly to the TRPM8 (Transient Receptor Potential Melastatin member 8) ion channel, a temperature-sensing receptor located in human sensory neurons. When a molecule like WS-3 binds to TRPM8, it lowers the channel's activation threshold, allowing calcium ions to flow into nerve endings at normal skin or body temperatures. This influx sends signals to the central nervous system that mimic the physical presence of ice or cold air.
While natural Peppermint Oil has historically been the primary source of physiological cooling, its active component, L-menthol, possesses several industrial drawbacks. Natural menthol triggers TRPM8 but also activates the TRPA1 receptor, which is responsible for noxious heat and pain sensations. This leads to burning, skin irritation, and watery eyes at high concentrations. Furthermore, menthol carries a strong, distinctive minty odor and bitter aftertaste that can clash with delicate perfumes or fruit flavors. High-purity cooling agents solved this issue by isolating and modifying the molecular structure, creating compounds that specifically target TRPM8 without activating secondary pain pathways or producing strong odors.
Understanding the unique profiles of popular cooling agents allows chemists to fine-tune sensory products. The table below represents the performance index of modern cooling molecules relative to natural menthol:
Product Name: Sea buckthorn oil
Appearance: Light Yellow Liquid
Odour: Rich, sweet and sour berry aroma. Rich in omega fatty acids.
Appearance: White Crystalline Powder
Odour: Light cooling smell
Purity: 99% min
CAS NO: 39711-79-0
Product Name: Chlorophyll
Appearance: Dark green liquid/powder
Odour: Pure botanical essence. High stability in formulations.
Usually extracted via steam distillation or cold compression, essential oils form the backbone of our botanical supplies. Hairui Natural Plant selects high-quality raw materials with high standards, strictly controlling and supervising the entire production and extraction process to ensure our oils, including camellia oil, eucalyptus oil, oregano oil, and peppermint oil, meet premium raw material standards for global food and cosmetics manufacturers.
Also classified as carrier or medium oils, our base oils are primarily extracted via cold compression. Since highly concentrated single essential oils cannot be applied directly to the skin, diluting them in a stable carrier oil is necessary. Many carrier oils possess intrinsic therapeutic properties. Hairui utilizes advanced low-temperature extraction machinery to preserve the bio-active nutrients of various seed and vegetable base oils.
Our crystalline herbal extracts, such as natural menthol and camphor, are separated by cooling raw essential oils. Premium products originate from high-quality raw materials. We operate a 5,000+ acre self-owned raw material agricultural base, managing the process from seedling selection and organic cultivation to harvesting, ensuring a reliable supply of pristine botanical inputs.
Developing high-purity sensory and botanical compounds to address engineering challenges across agricultural, cosmetic, pharmaceutical, and aromatherapy sectors.
Leveraging botanical chemical profiles to develop sustainable crop protection solutions. For example, sweet orange oil, a natural orange peel extract, presents no chemical residue risk, making it safe for the surrounding ecological environment. It enhances crop leaf respiration and photosynthesis, promoting healthy plant growth. Used as a standalone bio-pesticide or as an adjuvant, orange oil manages various insect pests and plant diseases, delivering clean agricultural benefits.
Integrating active carrier oils and cooling agents into shampoos, anti-dandruff hair serums, creams, and body lotions. For instance, cold-pressed castor oil is used in scalp treatments to condition hair fibers and improve shine. Castor oil moisturizes the scalp, while high-purity cooling agents like WS-3 provide refreshing sensory feedback, balancing formulation profiles.
Supplying essential oils and botanical active ingredients for softgels, capsules, and therapeutic balms. Evening Primrose Oil, rich in r-linolenic acid (GLA) and linoleic acid (LA), is encapsulated to help manage cardiovascular health, premenstrual syndrome (PMS), and menopausal symptoms. Our high-purity plant-derived active compounds support stable supplement formulations.
Producing aromatherapy oils for active diffusion and commercial ambient scenting. The scientific concept of aromatherapy, established in the early 20th century, relies on volatile aromatic compounds reaching the limbic system via the olfactory pathway. Our pure essential oils, such as lavender, eucalyptus, and lemongrass, are processed to retain their natural chemical profiles, supporting relaxation, focus, or soothing benefits.
Observe the advanced technology driving our manufacturing processes, showcasing how Jiangxi Hairui refines high-purity botanical products.
Established in 2006, Jiangxi Hairui Natural Plant Co., Ltd. is a specialized manufacturer of natural plant essential oils and high-purity chemical sensory agents. Located in the Jinggang Mountain High-Tech Development Zone in Ji'an, Jiangxi Province, our facility benefits from regional access to natural plant resources. Supported by an initial investment of RMB 50 million, our 13,000-square-meter facility features automated extraction systems, gas chromatography-mass spectrometry (GC-MS), and high-performance liquid chromatography (HPLC) instruments, enabling an annual production capacity of 2,000 tons of natural essential oils.
We supply natural, standardized, and scientifically documented ingredients. Every batch undergoes quality control procedures to ensure purity, chemical composition stability, and compliance with international standards.
We invest in upgrading our QA/QC systems and extraction methodologies. By refining raw plant inputs and synthesizing cooling agents, we maintain high purity levels across our product catalog.
Our 9-step quality control system spans seed selection, cultivation, harvest, distillation, crude analysis, secondary purification, GC-MS testing, packaging validation, and cold-chain shipping logs. This process ensures traceabilities and stability for our international clients.
The global cooling agent market is evolving due to changes in consumer preferences and regulatory updates. As cosmetic companies move away from alcohol-based formulations to prevent skin dryness, high-purity cooling agents like WS-3 and WS-23 are increasingly used to deliver cooling sensations in alcohol-free skincare products. In the food sector, demand for low-sugar and sugar-free confections has driven interest in sensory cooling agents that enhance sweetness perception without added calories.
Sustainability is another major driver. Plant-based synthesis and green chemistry are replacing traditional petroleum-derived chemical steps. Developing cooling agents from bio-based feedstocks through green processes is a key R&D focus. In terms of formulation, microencapsulation technologies are being used to control the release of cooling agents over time, extending the sensory experience in products like chewing gum and dermal patches.
Additionally, regulatory compliance is critical. Major global markets—including the EU (EFSA), the US (FDA), and China (NMPA)—are updating their positive lists for food and cosmetic ingredients. Jiangxi Hairui aligns its manufacturing processes with international regulatory frameworks, ensuring our products comply with REACH, Kosher, Halal, and food-grade standards for international trade.
Technical guidance on high-purity cooling agent applications, stability, dosage, and regulatory compliance.
Premium carrier oil extracted from sweet almonds. Ideal for moisturizing formulations, professional massage, and cosmetics manufacturing.
Pure aromatherapy lemongrass oil, suitable for diffusers, custom soap formulations, and cosmetics manufacturing.
Hydrating and skin-repairing aloe vera extract oil, suitable for sun care and soothing skin formulations.
High-purity natural geraniol extract, used as a fragrance component in perfumes, cosmetics, and household products.
High-purity thymol powder with verified antiseptic properties, suitable for oral care, cosmetics, and pharmaceutical uses.
Natural nepeta (catnip) oil, used in insect repellent formulas and calming aromatherapeutic blends.
Pure natural camphor powder extracted via physical crystallization. Suitable for pharmaceutical balms and topicals.
Concentrated natural chili oil for food flavoring and warming formulations, processed to meet international food-grade standards.