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$190
1-49 Bag/Bags
$170
50-499 Bag/Bags
$150
≥500 Bag/Bags
Product Attributes
Model No.: KS-20260301
Brand: kaishibio
Product Description
Polygonum Cuspidatum Extract Capsules are a premium nutraceutical dosage form delivering high-purity resveratrol , derived from Japanese Knotweed root. As one of the most efficient delivery formats in Plant Extracts, capsules offer convenience, precise dosing, and enhanced market acceptance across global supplement brands.
Widely used in Nutritional Ingredients, Anti-aging Ingredients, and Herbal Extracts, these capsules are particularly востребованы in the US, EU, and AU markets. B2B buyers prioritize standardized resveratrol content, stable supply chains, and full-service Capsule Manufacturing with private label capabilities.
Content Note: Prepared by our technical team based on current scientific literature. Health claims comply with FDA/EFSA guidelines. Last reviewed: April 2026
According to a study in Nature (2006), resveratrol may activate sirtuin pathways linked to longevity in model organisms.
According to a study in Cell Metabolism (2008), resveratrol demonstrated potential benefits in metabolic function and mitochondrial activity.
| Parameter | Specification | Details |
|---|---|---|
| Active Ingredient | Polygonum Cuspidatum Extract (Resveratrol) | Standardized 50% / 98% |
| Dosage Strength | 100 mg – 500 mg per capsule | Customizable |
| Capsule Type | Hard capsule (HPMC / Gelatin) | Vegetarian options available |
| Appearance | White to off-white powder in capsule | - |
| Packaging | Bottles / Blisters / Bulk | OEM customization |
| Shelf Life | 24 months | Under proper storage |
| Dosage | Resveratrol Content | Target Market |
|---|---|---|
| 100 mg | Standard | General wellness supplements |
| 250 mg | Mid-range | Sports Nutrition Ingredients, daily antioxidant |
| 500 mg | High strength | Premium Anti-aging Ingredients formulations |
| Form | Advantages | Best Application |
|---|---|---|
| Capsules | Convenient, precise dosage | Retail supplements, OEM brands |
| Powder | Flexible formulation | Powder & Drink Manufacturing |
Polygonum Cuspidatum Extract Capsules are widely used in:
Studies suggest resveratrol may support:
We provide complete Supplement Contract Manufacturing solutions for global brands.
We also supply Plant Extracts, Antioxidants, Vitamins, and integrated solutions for Softgel Manufacturing and Gummy Manufacturing.
We offer capsules standardized to 50% or 98% trans-resveratrol, depending on formulation requirements.
Yes, we support 100 mg to 500 mg per capsule or custom dosages.
Yes, HPMC plant-based capsules are available.
Bottles, blister packs, and bulk packaging can be customized.
Yes, we provide full OEM services including branding, formulation, and packaging.


Packaging & Delivery
| Selling Units: | Bag/Bags |
|---|
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