Grape Skin Extract Proanthocyanidins 15%

Grape Skin Extract Proanthocyanidins 15%–50%

High Standardization Dual-Active Marker: Features dual standardization of Proanthocyanidins (15%–50%) and Total Polyphenols (≥ 30%), delivering superior free-radical scavenging capacity compared to ordinary fruit powders.
Clean Label & Pure Origin: 100% extracted from natural grape skins (Vitis vinifera L.), Non-GMO, Allergen-Free, and processed strictly via water and food-grade ethanol extraction.
Superior Solubilisation & Processing Stability: Fine particle size (98% pass 80 mesh) with high water solubility, heat tolerance, and acid stability—ideal for liquid drinks, tablets, and capsules.
Bulk Supply & Customizable Grades: Flexible specifications from 15% to 50% proanthocyanidins with stable bulk capacity and international certification support.

Description

Product Overview

As a high-purity natural grape skin extract powder bulk ingredient, KEEP INGREDIENTS Grape Skin Extract is engineered for modern anti-aging nutricosmetics, cardiovascular health supplements, and functional beverage formulations. Traditional polyphenolic ingredients often suffer from batch instability or poor dissolution profiles. We utilize standardized refining technology to deliver standardized grape skin extract 50 proanthocyanidins with rapid solubility and consistent batch quality.

We adhere to 100% pure botanical sourcing from Vitis vinifera L., guaranteed Non-GMO and free from major allergens. Positioned as a reliable high purity proanthocyanidins grape skin extract supplier, every lot undergoes stringent testing for active purity, heavy metals, and micro-limits, providing high bioavailability and full regulatory peace of mind.

Key Product Features & Highlights

Dual Standardized Bioactive Markers

Batch-tested to guarantee Proanthocyanidins (15%–50% by UV/HPLC) and Total Polyphenols (≥ 30% by UV) for reliable antioxidant performance.
Excellent Water Solubility & Clarity

Fine powder profile (98% pass 80 mesh) that disperses and dissolves quickly in water to produce a natural clear solution—making it an ideal water soluble grape polyphenols extract for beverages.
Clean Label & Non-GMO Sourcing

As a non-GMO grape skin extract raw material manufacturer, we use only water and food-grade ethanol, eliminating solvent residue risks and supporting clean label claims.
Multi-Dimensional Health Application

Rich in bioactive polyphenols to support formulas for bulk grape skin extract for anti aging nutricosmetics and grape skin polyphenols for cardiovascular health supplement products.

Applications

Functional Beverages & Liquid Drinks: Ideal for ready-to-drink antioxidant shots, functional teas, and oral liquids with natural color and quick solubility.
Nutricosmetics & Skin Health: Formulated into tablets, capsules, and gummies to support skin elasticity and cellular anti-aging.
Cardiovascular & Daily Health Supplements: Serves as a core active ingredient in multi-ingredient formulas for circulatory and vascular support.

Product Specifications

Note: The following parameter standards refer to KEEP INGREDIENTS CO., LTD. enterprise testing guidelines, complying with CP, USP, and EP pharmacopeia norms.

Item	Specification	Test Method
Marker Compounds
Proanthocyanidins	15.0% – 50.0%	UV / HPLC
Total Polyphenols	≥ 30.0%	UV
Organoleptic
Appearance	Fine Powder	Visual
Color	Reddish Violet to Violet Brown	Visual
Odor & Taste	Characteristic	Organoleptic
Physical Characteristics
Particle Size	98% Pass 80 mesh	CP2015
Loss on Drying	≤ 5.00%	CP2015
Ash / Residue on Ignition	≤ 5.00%	CP2015
Heavy Metals
Total Heavy Metals	≤ 10 ppm Max	AAS
Lead (Pb)	≤ 3 ppm Max	ICP-MS
Arsenic (As)	≤ 2 ppm Max	ICP-MS
Cadmium (Cd)	≤ 1 ppm Max	ICP-MS
Mercury (Hg)	≤ 0.1 ppm Max	ICP-MS
Microbiological Tests
Total Plate Count	≤ 1,000 cfu/g Max	GB 4789.2
Total Yeast & Mold	≤ 100 cfu/g Max	GB 4789.15
E. Coli	Negative	GB 4789.3
Salmonella	Negative	GB 4789.4

FAQ

Q1: What active markers are standardized in Keep Ingredients Grape Skin Extract?

We standardize Proanthocyanidins (15%–50%) and Total Polyphenols (≥ 30%) using UV and HPLC methods, ensuring verified antioxidant activity in every batch.

Q2: How does this product perform in liquid beverage applications?

It features fine particle sizing (98% pass 80 mesh) and full water solubility, dissolving clearly without gritty sediment or cup-coating issues.

Q3: Is the raw material Non-GMO and free from artificial colorants?

Yes. It is 100% extracted from natural grape skins (Vitis vinifera L.) without added synthetic pigments or foreign plant adulterants.

Q4: What is the MOQ and sample policy?

The Minimum Order Quantity (MOQ) for standard grades is 1 kg. Free sample packs (10g–50g) are available for qualified B2B customers and formulators for lab testing.

Why Choose Keep Ingredients?

As a specialized natural grape skin extract powder bulk supplier, KEEP INGREDIENTS provides fully traceable, batch-consistent botanical ingredients to global brands.

Comprehensive Quality Testing: Advanced HPLC, UV, and ICP-MS testing for active markers, heavy metals, and microbiology.
Consistent Batch Quality: Industrial extraction control ensures stable color, solubility, and assay metrics.
Global Regulatory Support: Facilities operate under GMP, ISO, and HACCP standards, supplying full technical files (COA, MSDS, Specification Sheet).

Get in Touch & Request Samples

To request free samples, batch COAs, or bulk pricing, contact our sales team:

Company Name: KEEP INGREDIENTS CO., LTD.
Official Website: www.keepingredients.com
Email: info@keepingredients.com