Your Reliable Castor Oil Suppliers
with its unique high-viscosity lipid structure, our castor oil is an indispensable oil-based raw material in hair care and beauty formulations. We select high-quality raw material seeds and extract them through a low-temperature cold pressing process to maximize the natural active ingredients’ retention, including vitamin E, phytosterols, and natural antioxidant components. For example, its natural castor oil acid content can be maintained at over 85%.
Our castor oil products can repair damaged hair and moisturize the skin and scalp. You can use castor oil alone or combine it with other essential oils or active ingredients to build a product system with different skin sensations and efficacy positioning, such as light care, repair, or highly nourishing formulas.
WJOIL provides you with batch-identical products, which support a complete set of organic certifications, COA, and SDS compliance documents. And moreover, we also offer free reference for additional ratios and compounding optimization plans.
Whether you are developing hair care product lines, products for eyelash and eyebrow growth, or functional oil systems for the natural skincare market, we are your reliable castor oil wholesale supplier.
Our Common Castor Oil Products
The castor seeds are typically roasted before pressing, resulting in a deeper amber to dark brown colour with a distinct roasted aroma. It is commonly used in clean beauty and hair care products.
The caster grows in accordance with organic standards such as ECOCERT and USDA, without pesticides or chemical fertilizers. It is more suitable for the high-end and organic skincare market.
Through decolourisation, deodorisation and impurity control processes, it provides a lighter overall colour and a milder odour and does not interfere with your product’s fragrance or visual appearance.
We can blend castor oil with different other ingredients to suit your skin type, fragrance preferences and product positioning. There is no need for further weighing or manual mixing.
Our Castor Oil Benefits
Castor oil is rich in ricinoleic acid. It can form a thin but stable oil film on the skin surface, effectively reducing water loss through the skin and enhancing the overall moisturizing duration.
It has a low comedogenicity and is not likely to clog pores. Our castor oil can actually help dissolve sebum and makeup residues, achieving an oil dissolves oil cleaning effect for you.
You can also use our castor oils to help alleviate skin discomfort reactions caused by external stimuli, such as mild redness or tightness.
The fatty acids contained in castor oil (like castor oil acid and natural triglycerides) are beneficial to soften the stratum corneum to make the skin show a smoother and more delicate appearance.
Our castor oil naturally has some antioxidant components such as vitamin E. They can help mitigate the impact from oxidative stress on the skin condition to enhance firmness.
With good compatibility with oil-based systems, it can well blend into your hair products’ formulation. It nourishes the scalp environment to support a healthy hair follicle environment.
Our castor oil can enhance the softness and natural luster for the hair strands, making the hair appear healthier visually and tactilely. And avoid the breakage and split ends caused by dryness.
You can use our castor oil as a functional additive oil. It can effectively enhance the foam’s fineness and stability. So it is common in both cold soap-making and hot soap-making systems.
High Keratin Affinity & Deep Lipid Compatibility
Most ordinary vegetable oils merely form a physical protective film on the surface, which can easily leave the consumer’s hair or skin feeling heavy and greasy, or give a greasy sensation.
However, our castor oil will penetrate the hair cuticle gaps and the skin keratin gaps, truly bringing repair and nutrition to the skin’s internal structure.
Our castor oil contains a higher proportion of ricinoleic acid and its molecular structure naturally contains hydroxyl polar groups. So it can give you a stronger polarity compatibility and adhesion ability compared to other oils. Under the same addition ratio, it shows superior oil-phase compatibility and uniform distribution in hair care and nourishing skincare formulations. This allows you to achieve a more pleasant texture while optimising the formulation structure and cost.
Why Choose WJOIL as Your Partner for Castor Oil?
- We adopt a standardized cold pressing process to maintain its natural active ingredients and provide you with stable product performance. Whether it’s regular cold-pressed castor oil or the Jamaican black castor oil, we can ensure that the castor oil acid content remains stable within the range of 85% – 92%.
- We have a complete castor oil product line, offering many different specifications such as cold pressed castor oil, refined castor oil, organic castor oil, Jamaican black castor oil, USP grade castor Oil and functional blended castor oils.
- Our castor oil products have been exported to 80+ countries and regions including the US, Canada, Germany, UK, France, Japan, Australia, and the Middle East for a long time, and we have established long-term partnerships with over 200 companies.
- WJOIL also supports OEM, ODM, and functional blended oil development services for castor oil. We have assisted in the development of over 30 customized formula projects, covering hair care oils, scalp care, skin care oils, and functional oil systems.
- Castor Oil Specification
| Product Name | Castor Oil |
| INCI Name | Ricinus Communis (Castor) Seed Oil |
| Type | Carrier Oil / Base Oil / Plant Oil |
| Grade | Cosmetic |
| Appearance | Transparent to slightly cloudy and viscous liquid |
| Color | Clear to Light Yellowish |
| Texture | High viscosity |
| Extraction Method | Cold Expeller Pressed |
| Scent | mild and slightly reminiscent of hazelnuts |
| Key Components | Ricinoleic acid≥85% , Oleic acid and linoleic acid |
| Hexane-Free | Yes |
| Shelf Life | 1 year |
Their main difference is the production temperature and the degree of active ingredients retention.
During the mechanical pressing and friction processes, the ordinary pressed castor oil is typically subjected to high temperatures of 60–99°C (140–210°F). The high temperatures may affect some of the natural active ingredients in castor oil, which will lower its performance consistency in high-end skincare and haircare formulations.
In contrast, our cold-pressed castor oil is extracted at a temperature below approximately 50°C (122°F) and is processed without high-temperature intervention. It can better retain natural antioxidant components, fatty acid structures, and the original plant characteristics for you. It is more suitable for raw material bases for high-end and Clean Beauty positioning.
Compared to high unsaturated fatty acid vegetable oils such as grape seed oil and flaxseed oil, our castor oil gives you better oxidation stability. Its naturally high content of ricinoleic acid structure makes it less likely to undergo rapid spoilage, develop odors or show significant color changes during long-term storage. Under sealed, protected from light and cool storage conditions, their shelf life usually ranges from 24 to 36 months.
To further enhance product stability, it is recommended to:
- Use dark packaging containers.
- Avoid long-term high-temperature storage.
- Reduce repeated exposure to air.
- When necessary, add a natural vitamin E antioxidant system.
Castor oil is generally considered to pose a moderate risk of causing breakouts, though tolerance varies depending on skin type.
However, it is not usually recommended for you to use it alone in high concentrations when formulated for oily or acne-prone skin, or in the developing lightweight skincare products. Instead, it is more common to blend with lightweight plant oils such as jojoba oil, squalane or grape seed oil to show a better texture and absorption. Many facial care oils, scalp serums and functional skincare products currently available on the market utilise castor oil in low concentrations, blended with other plant oils.
In the actual formulation system, you can stably compound our castor oil with different vegetable oils and essential oil systems:
- Single-note essential oil: Rosemary essential oil, lavender essential oil, tea tree essential oil. These are commonly used in scalp care products, soothing and restorative balms, and massage oils;
- Base oil combinations: Jojoba oil, squalane, grape seed oil, argan oil, coconut oil. These lightweight oils help counteract the heavy viscosity of castor oil.
The amount of castor oil to be added varies depending on different product formulations.
The common reference ranges are as follows:
- Cold soap / Hot soap: 10%–30%.
- Hair care oil: 5%–30%.
- Hair scalp essence: 3%–15%.
- Lash growth liquid: 5%–20%.
- Lip balm: 2%–10%.
- Body care oil: 2%–15%.
- Lotion and cream: 2%–5%.
It should be noted that you still test the actual addition ratio for stability in combination with the target skin sensation, product positioning, regulatory requirements, and the overall formulation system. For initial development projects, we usually recommend starting with a medium to low addition amount for sample testing and then making adjustments based on your final results.
It is suggested for you to conduct stability tests and skin patch tests before the official launch. Because there is a small number of sensitive individuals may have individual differences in reactions to plant oils.
At the same time, our castor oil is mainly applied in cosmetics and personal care development. If your product involves special markets, special populations, or projects with high regulatory requirements, please carry out additional compliance assessment and safety tests according to the target market regulations.
In addition, this raw material is generally not recommended for oral use during pregnancy. In the home care application, it is also necessary to pay attention to avoiding the risk of pets accidentally eating it. So you would better make corresponding prompts in the label or instructions.