Core product value

Grape seed extract (CAS 84929-27-1) is derived from the seeds of wine grapes (Vitis vinifera). The core active ingredient is oligomeric proanthocyanidins (OPCs), which have super antioxidant capacity (ORAC value ≥ 8000 μmol TE/g). This product uses a patented water extraction-column chromatography purification process to provide 95% standardized OPCs content (UV detection), which is suitable for the development of functional foods, skin care products and cardiovascular health products.

Technical parameters and quality control

Key indicators

Active ingredients:

OPCs: ≥95% (UV detection, HPLC verification supported)

Catechin/epicatechin: ≤5% (HPLC method)

Physical and chemical properties:

Appearance: reddish brown fine powder

Solubility: easily soluble in water/ethanol (1% solution transmittance ≥90%)

Water content: ≤5% (Karl Fischer method)

Safety indicators:

Heavy metals: lead ≤0.5ppm, arsenic ≤0.3ppm (ICP-MS)

Microorganisms: total colony <1000 CFU/g, no pathogenic bacteria

1. Antioxidant and anti-aging

Skin care products:

1%-5% addition inhibits matrix metalloproteinase (MMP-1) and reduces wrinkle depth (clinical results show 28% improvement in 8 weeks)

Combined with vitamin C to enhance light protection (SPF value synergistically enhanced)

Oral beauty:

Daily dose of 150-300mg improves skin elasticity (double-blind trial shows skin moisture ↑35% after 12 weeks)

2. Cardiovascular health

Blood pressure management:

Daily 200mg OPCs can reduce systolic blood pressure by 5-7mmHg (PMID: 26328470)

Vascular protection:

Enhance capillary resistance and reduce bruises (especially suitable for people with varicose veins)

3. Functional foods

Sports nutrition:

Reduce oxidative damage after exercise (MDA level reduced by 40%) and accelerate recovery

Eye protection formula:

Combined with lutein to relieve visual fatigue (clinical trials show visual acuity increased by 22%)

Supply chain and procurement advantages

Packing specifications:

1kg aluminum foil bag (nitrogen filled to prevent oxidation)

25kg cardboard drum (lined with double-layer PE film + deoxidizer)

Inventory and delivery time:

Spot: 95% OPCs powder inventory 1.5 tons (shipping within 5 working days)

Customization: support 80%-98% content adjustment (minimum order quantity 10kg)

Logistics support:

Provide DDP/DAP terms, non-hazardous chemical transportation (MSDS available)

Frequently Asked Questions (FAQ)

Q1: What are the differences between the UV and HPLC test results?

A1: The UV method detects total polyphenols (including polymers), and the HPLC method detects monomers (such as catechins). We provide dual-method test reports.

Q2: Is it suitable for hyaluronic acid formula?

A2: We recommend the nano-encapsulation process (patented technology) to solve the discoloration problem of OPCs and hyaluronic acid.