Introduction
Radish Seed Extract is derived from the dried mature seeds of Raphanus sativus L., a plant belonging to the Brassicaceae (cruciferous) family. In traditional medicine, radish seeds have been used for centuries to support digestion, relieve bloating, and clear respiratory congestion. Modern scientific research has validated these traditional uses and uncovered a wide range of additional health and skincare benefits.
The extract is rich in bioactive compounds, including glucosinolates (which are converted by gut microbiota into bioactive isothiocyanates), volatile oils (containing α-, β-hexenal and hexenol), fatty oils (rich in erucic acid, linoleic acid, and linolenic acid), alkaloids (including raphanin), and flavonoids. Glucoraphenin is the main glucosinolate component in radish seeds.
Our Radish Seed Extract Powder is manufactured through advanced extraction (including supercritical CO₂ extraction) and spray-drying processes, ensuring high retention of volatile oils and bioactive compounds. The result is a consistently pure, water-soluble powder that meets the stringent quality requirements of nutraceutical, cosmetic, and pharmaceutical applications.
Key Features & Advantages
- Rich in Bioactive Compounds – Contains glucosinolates, isothiocyanates (including sulforaphene), volatile oils, fatty oils, alkaloids (raphanin), and flavonoids
- Potent Antioxidant Activity – Neutralizes free radicals and protects cells from oxidative stress
- Broad-Spectrum Antimicrobial – Exhibits inhibitory effects against Staphylococcus aureus, E. coli, Streptococcus, Pneumococcus, Shigella, Salmonella typhi, and various pathogenic skin fungi
- Multiple Extract Ratios – Available in 4:1, 10:1, and 20:1 ratios; custom specifications available
- Excellent Water Solubility – Fully water-soluble and dispersible, ideal for beverages, powders, and aqueous formulations
- Clean & Natural – Derived from non-GMO radish seeds; vegan and gluten-free
- High Stability – Spray-dried process preserves bioactive compounds for maximum effectiveness
- Regulatory Compliance – Meets international quality standards for food, supplement, and cosmetic ingredients
Technical Specifications (Typical – ≥99% Grade)
| Parameter | Specification | Test Method |
|---|---|---|
| Product Name | Radish Seed Extract Powder | - |
| Botanical Name | Raphanus sativus L. | - |
| CAS Number | 84775-94-0 | - |
| INCI Name | Raphanus Sativus (Radish) Seed Extract | - |
| Used Part | Seed | - |
| Appearance | Brown-yellow to light yellow fine powder | Visual |
| Extract Ratio | 10:1 (4:1, 20:1 available) | TLC |
| Glucosinolate Content | ≥3.5% | HPLC |
| Particle Size | 80–100 mesh | Sieve Analysis |
| Loss on Drying | ≤5.0% | 105°C/2 hrs |
| Total Ash | ≤5.0% | GB 5009.4 |
| Bulk Density | 0.45 g/cm³ | - |
| pH (1% solution) | 6.0 | - |
| Lead (Pb) | ≤0.5 mg/kg | ICP-MS |
| Arsenic (As) | ≤0.5 mg/kg | ICP-MS |
| Cadmium (Cd) | ≤0.2 mg/kg | ICP-MS |
| Mercury (Hg) | ≤0.1 mg/kg | ICP-MS |
| Total Plate Count | ≤1,000 CFU/g | GB 4789.2 |
| Yeast & Mold | ≤100 CFU/g | GB 4789.15 |
| E. coli | Negative | GB 4789.3 |
| Salmonella | Negative | GB 4789.4 |
| Antioxidant Activity | ≥80% (DPPH) | - |
| Solubility | Fully water-soluble / dispersible | - |
Specifications are for reference. Please request the current COA for batch-specific data.
Radish Seed Extract Health & Skin Benefits
Radish Seed Extract is a scientifically validated ingredient with benefits supported by peer-reviewed research. Here are the key highlights:
Powerful Antioxidant Protection
- Radish Seed Extract is rich in glucosinolates and flavonoids, which act as effective free radical scavengers.
- Studies have demonstrated that radish seed extract protects cells against oxidative stress via the AMPK signaling pathway.
- Its antioxidant activity helps protect the skin from environmental stressors like UV radiation and pollution.
- The extract exhibits significant DPPH radical scavenging activity (≥80%).
Supports Digestive Health
- Radish Seed Extract has been used traditionally to eliminate food accumulation, relieve stomach distension and pain, and clear up phlegm.
- It promotes gastrointestinal motility, increases the tension and contraction of the pyloric circulatory muscle, and alleviates symptoms of indigestion.
- Modern research confirms that glucosinolates from radish seeds can be transformed into bioactive isothiocyanates by gut microbiota, supporting digestive wellness.
Broad-Spectrum Antimicrobial Activity
- Radish Seed Extract contains raphanin, an antibacterial substance with significant inhibitory effects against Staphylococcus aureus and E. coli.
- Studies have demonstrated strong antibacterial effects against Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella typhi, Shigella sonnei, and various pathogenic skin fungi.
- Ethanolic and methanolic extracts produced inhibition zones of 12–21mm against multiple bacterial pathogens.
- This makes it an ideal ingredient for acne treatment and anti‑blemish formulations.
Supports Skin Health & Anti-Aging
- Radish Seed Extract improves skin hydration and promotes a more even skin tone.
- Research shows it can inhibit melanin synthesis in B16 cells, supporting skin brightening and hyperpigmentation reduction.
- The extract has significant anti‑wrinkle activity, with collagenase inhibition of up to 55.73% at 2,000 μg/mL.
- It promotes fibroblast cell proliferation and inhibits collagenase activity, helping to prevent wrinkles and support skin elasticity.
- Its anti‑inflammatory properties help soothe and calm irritated or inflamed skin.
Supports Hair Health
- Radish Seed Extract nourishes and strengthens hair follicles, promoting healthy hair growth.
- It functions as a natural conditioning agent, improving hair texture and manageability.
Supports Metabolic & Cardiovascular Health
- Glucosinolate extract from radish seeds has been shown to attenuate high‑fat diet‑induced obesity, with insights into gut microbiota modulation.
- Sulforaphane, an isothiocyanate abundant in radish seeds, has demonstrated anti‑obesity effects.
- Radish Seed Extract helps regulate blood pressure and cholesterol levels.
Natural Preservative Function
- Due to its antimicrobial properties, Radish Seed Extract can be used as a natural preservative in cosmetics and personal care products.
What is Radish Seed Extract Used For?
- Dietary Supplements & Nutraceuticals – Capsules, tablets, and powders for digestive health, antioxidant support, and metabolic wellness.
- Functional Foods & Beverages – Fortified drinks, health teas, and food products targeting digestion and overall wellness.
- Skincare & Cosmetics – Serums, creams, lotions, and masks for anti‑aging, brightening, anti‑acne, and soothing formulations. INCI: Raphanus Sativus (Radish) Seed Extract.
- Hair Care – Shampoos, conditioners, and hair treatments for nourishment and strengthening.
- Pharmaceuticals – Active ingredient in formulations for digestive and respiratory health.
- Animal Nutrition – Feed additive to promote digestion and overall health in livestock.
- Natural Preservative – As a clean‑label preservative alternative in personal care products.
Frequently Asked Questions (FAQ)
Q: What is Radish Seed Extract?
A: Radish Seed Extract is derived from the dried mature seeds of Raphanus sativus L. (radish). It is rich in glucosinolates, volatile oils, fatty oils, alkaloids (raphanin), and flavonoids. It has been used traditionally for digestive health and is now widely used in dietary supplements, functional foods, and cosmetics.
Q: What extract ratios are available?
A: We offer Radish Seed Extract in 4:1, 10:1, and 20:1 ratios. Custom specifications are available upon request.
Q: What is the CAS number and INCI name?
A: CAS No.: 84775-94-0. INCI Name: Raphanus Sativus (Radish) Seed Extract
Q: Is the product suitable for vegans and vegetarians?
A: Yes. Our Radish Seed Extract Powder is derived from non-GMO radish seeds. No animal‑derived ingredients are used in the manufacturing process.
Q: Does it contain allergens?
A: Our Radish Seed Extract Powder is gluten‑free and non‑GMO. It is free from major allergens including dairy, soy, eggs, fish, shellfish, peanuts, and tree nuts. Allergen declarations are available upon request.
Q: What is the solubility of Radish Seed Extract?
A: Our Radish Seed Extract Powder is fully water‑soluble and dispersible, making it ideal for beverages, liquid formulations, and aqueous cosmetic products.
Q: What are the recommended usage levels?
A: Typical usage varies by application:
- Dietary supplements: 1–3 g per day
- Functional foods: 0.1%–0.5% of formulation
- Skincare & cosmetics: 1%–3% of formulation; antioxidant serums: 1–3%; water‑based serums: 0.5–2%
- Animal feed: 0.2%–1% of feed
Q: Is Radish Seed Extract suitable for skincare formulations?
A: Yes. It is widely used in skincare for its antioxidant, anti‑inflammatory, brightening, and anti‑aging properties. Maximum use levels in cosmetics: 5.982% for leave‑on body products and 4.985% for eye‑area products.
Q: What ingredients work well with Radish Seed Extract?
A: Radish Seed Extract works synergistically with other plant‑based actives. In cosmetic formulations, it has been combined with glycolipids, phytosphingosine, and Centella asiatica extract for enhanced anti‑inflammatory and skin‑repairing effects.
Q: Is Radish Seed Extract stable in finished formulations?
A: Our spray‑dried extract has excellent stability when stored properly. For liquid formulations, we recommend protecting from light and excessive heat.
Q: What quality standards does your Radish Seed Extract meet?
A: Our product meets rigorous international quality standards for food, supplement, and cosmetic ingredients. Each batch is tested for extract ratio (TLC), glucosinolate content (HPLC), heavy metals (ICP-MS), and microbiology.
Q: What certifications do you hold?
A: We hold ISO 9001, ISO 22000, HACCP, KOSHER, HALAL, cGMP, and FDA registration. Copies of our certificates are available upon request.
Q: Is Radish Seed Extract approved for use in cosmetics?
A: Yes. It is listed in the List of Used Cosmetic Ingredients (2021 Edition) as Item No. 04474 – Raphanus Sativus (Radish) Seed Extract. It is approved for use in a wide range of cosmetic categories with the INCI name and CAS number as specified.
Q: Do you provide a Certificate of Analysis (COA) with each shipment?
A: Yes. Every shipment includes a detailed COA showing all test results for the specific batch. Additional documents such as MSDS, TDS, stability data, and allergen statements are also available.
Q: What is the minimum order quantity (MOQ)?
A: Our standard MOQ is 1 kg, making it suitable for R&D, product trials, and small‑batch production. Commercial bulk orders receive competitive pricing.
Q: Can I request a sample before placing a bulk order?
A: Yes. We offer samples (typically 50–100 g) for quality evaluation and formulation development.
Q: How should Radish Seed Extract Powder be stored?
A: Store in a cool, dry, and dark place, protected from light and moisture. Keep containers tightly sealed when not in use. Temperature should be ≤25°C with humidity ≤60%. Under these conditions, the product maintains quality for 24 months.
Q: Do you offer custom packaging or private label services?
A: Yes. We work with partners on custom packaging, private labelling, and OEM/ODM projects. Please provide your specifications and we will tailor our service accordingly.
Why Choose Huilin Bio-Tech?
Your Professional Manufacturing & Sourcing Partner
We are more than a supplier - we are a comprehensive supply chain partner dedicated to high-quality ingredients, custom formulations, and finished products across multiple industries.
Professional Manufacturer: Xi'an Huilin Bio-tech Co., Ltd. is a high-tech biotechnology company specializing in the production, R&D, and export of natural botanical extracts.
Quality Assurance: Every batch undergoes rigorous testing for capsaicin content (HPLC), heavy metals (ICP-MS), and microbiological purity to ensure consistent quality and safety.
Flexible Specifications: We offer a wide range of specifications from 1% to 98% capsaicin content to meet diverse application requirements.
Customization Capabilities: We offer flexible packaging options and custom formulations to meet diverse customer requirements.
Supply Chain Reliability: With established supply chains and robust production capacity, we ensure timely delivery and stable supply for bulk orders.
Technical Support: Our experienced R&D team provides formulation guidance and technical support throughout your product development process.
Global Compliance: Products are manufactured in compliance with international quality standards and regulatory requirements.
For inquiries, quotations, or sample requests, please contact: sales@huilinbio-tech.com
References
1. Glucosinolate extract from radish (Raphanus sativus L.) seed attenuates high‑fat diet‑induced obesity: insights into gut microbiota and fecal metabolites. Frontiers in Nutrition. 2024. doi:10.3389/fnut.2024.1462678.
🔗 View full text: https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2024.1442535/full
(Radish seeds are rich in glucosinolates, alkaloids; glucoraphenin is the main glucosinolate component; can be transformed into bioactive isothiocyanates by gut microbiota.)
2. Antioxidant Activity and Anti‑aging Effect of Water and Ethanol Extracts from R. sativus Seeds. Korean Journal of Food Science and Technology. 2025.
🔗 View full text: https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART003070690
(At 2,000 μg/mL, collagenase inhibition of 55.73%; radish seed extract is a potential resource for controlling free oxygen radicals and aging processes.)
3. Micro‑grinding‑based production for sulforaphene‑enriched radish seeds extract via facilitating glucosinolates‑myrosinase reaction, and evaluation of its anti‑adipogenic effects. Food Chemistry. 2023. doi:10.1016/j.foodchem.2023.136912.
🔗 View full text: https://www.sciencedirect.com/science/article/abs/pii/S0308814623014826
(Sulforaphene, an isothiocyanate abundant in radish seeds, has many health benefits including anti‑obesity effects.)
4. Antibacterial Activity of Raphanus Sativus Linn. Seed Extract. Global Journal of Medical Research. 2013;12(11):25-34.
(Ethanolic and methanolic extracts produced inhibition zones of 12–21mm against E. coli, K. pneumoniae, P. aeruginosa, S. aureus, Salmonella typhi, and Shigella sonnei.)
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