opc 95 powder

OPC 95 Powder — High-Purity Grape Seed Extract for Professional B2B Formulations

OPC 95 powder is prepared from the seeds of Vitis vinifera grapes and is standardised to contain not less than 95% Oligomeric Proanthocyanidins (OPCs) – the short-chain, bioavailable form of polyphenols recognised for their enhanced antioxidant activity. Each batch is verified by UV and HPLC procedures to confirm active content and produced in our Xi'an production base under GMP conditions. Certified to ISO 9001, HALAL and KOSHER . This ingredient is intended for B2B buyers wanting consistency, documentation and dependable bulk supply.

Product Specifications

Why OPC 95 Matters for Your Formulation?

Not all polyphenol extracts perform equally. The critical distinction lies in molecular weight. Total polyphenol extracts often contain large, polymerized tannins that are poorly absorbed by the human body.

OPC 95 powder targets the oligomeric fraction — specifically dimers, trimers, and tetramers from grape seed. These short-chain structures offer significantly higher bioavailability compared to lower-grade extracts. This matters directly for your product's efficacy claims.

The antioxidant potency of this concentrated fraction is considerably stronger than that of Vitamin C or Vitamin E. For supplement and cosmetic brands competing on performance, this distinction is a real formulation advantage.

Application Areas

Dietary Supplements: Used in capsules & tablets for cardiovascular support, anti-aging and general antioxidant protection. The extract retains its structure in high pressure tabletting conditions.

Functional Beverages: It is highly soluble in water and so enables the production of clear antioxidant beverages. Precision filtration in the production process ensures solution clarity for the full 12 month shelf life.

Cosmeceuticals and Topical Products: Added to anti-aging lotions and serums, acting as inhibitors of collagenase and elastase. It is a biological protection against UV Oxidative stress in emulsion settings. Formulators should consider using stabilised pH to prevent discolouration.

Beauty-From-Within Products: The growing trend of ingestible beauty supplements is increasing demand for high purity grape seed OPC as the preferred ingredient for skin health formulations that offer photoprotection and collagen support.

Quality Assurance and Safety

Every batch of our grape seed extract undergoes a dual testing protocol using both UV spectrophotometry and HPLC analysis. HPLC fingerprinting is especially important — it allows us to verify the authentic Vitis vinifera OPC profile and detect any adulteration, such as peanut skin substitutes that carry different proanthocyanidin ratios.

Active ingredient content, microbial limits, and potential contaminants are all monitored at each stage — from raw material receiving through to finished product release. Our quality management system follows ISO 9001 standards, and products are certified HALAL and KOSHER for international market access.

Minor batch-to-batch variation in the reddish-brown powder color is normal for natural botanical extracts, influenced by seasonal harvest conditions. What remains consistent is the verified OPC specification — confirmed analytically before each shipment.

Storage and Handling Guidelines

OPCs are hygroscopic by nature. Without proper storage, moisture absorption leads to clumping, oxidation, and reduced potency over time.

Follow these handling practices to protect product integrity:

• Store in double-lined polyethylene bags inside a sealed fiber drum
• Maintain storage conditions below 25°C and below 50% relative humidity
• Keep away from direct light and heat sources
• Use desiccants during transit to prevent moisture ingress
• Reseal opened packaging immediately after use

When used in thermal processing such as beverage pasteurization, the extract shows good stability at approximately 75–85°C for short durations, particularly in acidic environments (pH below 4). Prolonged boiling at high temperatures is not recommended, as it may degrade oligomers or cause polymerization.

Packing and Delivery

Standard bulk packing is 25 kg per drum, using vacuum composite film or aluminum foil nitrogen-filled bags to protect active content during transit and long-term storage.

Customized packaging options are available, including private label, multilingual packaging, and adjusted pack sizes for different manufacturing requirements. Most orders are ready for shipment within 2–3 working days after order confirmation, with flexible shipping options via courier, air freight, or ocean freight depending on your destination and volume.

Our Factory

Shaanxi New Things Biotech operates a modern production base in Xi'an, equipped with supercritical fluid extraction technology, molecular distillation systems, and automated production lines. The facility is managed under GMP principles with a fully digital manufacturing system enabling complete traceability — from raw material intake to finished product delivery.

Our integrated model covers plant sourcing, extraction, purification, quality testing, and packaging under one roof. This means you get consistent product quality, transparent documentation, and a single accountable supply partner — not a trading company. Flexible batch sizes support both trial orders and large-scale commercial supply.

FAQ

Q1: What is the difference between 95% OPC and 95% Polyphenols?

A: OPC specifically refers to the oligomeric (short-chain) fraction of proanthocyanidins, which offers higher bioavailability and stronger antioxidant activity. Total polyphenols include larger tannin molecules that are less efficiently absorbed.

Q2: How do you verify the extract is not adulterated with peanut skin?

A: We use HPLC fingerprinting to confirm the authentic Vitis vinifera OPC profile. Peanut skin extracts carry distinct A-type proanthocyanidin ratios and flavonoid markers absent in genuine grape seed extract.

Q3: How is batch-to-batch consistency maintained?

A: Each batch is tested against agreed product specifications using UV and HPLC methods before release. This ensures active content and physical parameters remain within defined limits across production runs.

Q4: Can you provide quality documentation for evaluation?

A: Yes. A Certificate of Analysis (COA) and relevant quality documents can be provided per order. You can discuss specific testing requirements before placing a bulk order.

Q5: Is the product suitable for beverage manufacturing?

A: Yes. Its water solubility makes it well-suited for functional drink applications. Good stability is observed at pasteurization temperatures in acidic formulations. Avoid prolonged high-heat exposure.

Q6: What customization options are available for bulk buyers?

A: We support custom specifications, private label packaging, adjusted pack sizes, and OEM/ODM production. Share your target specification and volume requirements, and we'll develop a suitable supply plan together.

Contact Us

Ready to source high-purity OPC 95 powder for your next formulation? Reach out to our team at newthingsbio@163.com — we respond promptly.