ZLEY® Resveratrol (CAS 501-36-0):
High-Purity Antioxidant Powerhouse – Neutralizes Free Radicals, Defends Against Aging

Product Overview
Resveratrol, also known as 3,5,4′-trihydroxystilbene, is a non-flavonoid polyphenolic compound. It is a phytoalexin – a natural defense substance produced by plants when attacked by pathogenic microorganisms (fungi, bacteria) or exposed to adverse environmental conditions such as UV radiation. It is widely found in peanuts, grapes, pineapples, white hellebore, Polygonum cuspidatum, and other plants. As a natural antioxidant, resveratrol offers significant cosmetic benefits, including skin brightening, antioxidant protection, and anti-aging effects, helping to reduce melasma, diminish wrinkles, and address other skin concerns.
ZLEY® is a professional supplier of Resveratrol (CAS 501-36-0), providing consistent quality, technical support, and global delivery to over 60 countries.
ZLEY® Resveratrol Product Information
| Parameter | Specification |
| INCI Name | Resveratrol |
| CAS Number | 501-36-0 |
| Available Grades | 10%, 90%, 98% Resveratrol |
| Key Benefits | Brightening & antioxidant, anti-aging |
| Maximum Historical Use in Leave-on Products | 5% |
Is ZLEY® Resveratrol Safe?
Yes. Resveratrol is considered safe for cosmetic use under normal, reasonable, and foreseeable conditions at the following maximum concentrations:
| Application Area | Maximum Safe Concentration |
| Full body (leave-on) | 5% |
| Eye area (leave-on) | 4% |
| Torso, face (including neck), hands/feet, scalp, hair, lips | 5% (referencing full body) |
| Fingernails/toenails | 4% (referencing eye area) |
| Rinse-off products | Same as leave-on for each corresponding area |
Product Applications
Resveratrol is valued in cosmetics for its mild yet potent skin benefits. It is widely used in brightening, antioxidant, and anti-aging formulations across various product types.
Why Source ZLEY® Resveratrol from ZLEY?
Through over 20 years of dedicated effort and pursuit of excellence, ZLEY® has evolved into a modern enterprise integrating research, production, quality control, and sales. We are committed to providing the highest quality personal care raw materials, semi-finished products, and customized formulation solutions. We strive to meet the diverse needs of our customers and ensure the delivery of superior products and service.
What Technical Support Can You Expect When Sourcing ZLEY® Resveratrol?
As a specialized supplier, ZLEY® offers value that extends beyond the product itself:
- Formulation Application Support: Basic formulation suggestions, combination recommendations, and processing guidance
- Regulatory Consulting Services: Assistance with interpreting regulatory requirements for target markets
- Quality and Supply Assurance: Consistent product quality, competitive pricing, and reliable global logistics delivery
- Market Trend Information: Latest market dynamics and ingredient application trends
ZLEY® Resveratrol – Frequently Asked Questions (FAQ)
Q1: What are the different grades of ZLEY® Resveratrol and which should I choose?
A:ZLEY® offers 10%, 90%, and 98% purity grades.
- 10% – Pre‑diluted, ideal for lower‑concentration applications or minimal handling.
- 90% and 98% – High‑purity grades for maximum efficacy and formulation flexibility.
For most cosmetic uses, 90% or 98% is recommended for optimal antioxidant and anti‑aging performance.
Q2: What makes resveratrol such a powerful antioxidant?
A: Resveratrol works through a dual mechanism: directly scavenging free radicals and activating the Nrf2 pathway to boost natural antioxidant enzymes (SOD, catalase, glutathione peroxidase). It also activates sirtuins (SIRT1), which are linked to longevity and cellular repair, providing comprehensive anti‑aging protection.
Q3: Is ZLEY® Resveratrol suitable for sensitive skin?
A: Yes. Resveratrol is mild and well tolerated, even on sensitive skin. Patch testing and starting at lower concentrations are recommended before reaching the maximum 5% in leave‑on products. Its compatibility with soothing ingredients allows for even greater gentleness.
Q4: How to request samples, technical documentation, and pricing?
A: Contact the export team at [email protected]. Please include your company details, intended application, and target market for relevant support.
