Wholesale 95% Proanthocyanidins/PAC/OPC Pine Bark Extract Powder CAS 133248-87-0 for Antioxidant Use

Pine bark extract contains over 40 active ingredients, mainly including Proanthocyanidins, catechins, vanillic acid, ferulic acid, gallic acid and etc.The antioxidant capacity of oligomeric anthocyanins/OPCs is 20 times that of vitamin C and 50 times that of vitamin E.

Product Name: Pine Bark Extract
Specifications: Proanthocyanidins / PAC 95%
Appearance: Reddish-brown powder
Part Used Bark
Latin Name : Pinus massoniana Lamb
Kosher Status: Yes
Test Method: UV

Product specification

Pine Bark Extract Technical Data Sheet
Sense Index
Appearance	Reddish-brown powder
Odor & Taste	Characteristic
Physical-chemical Index
Proanthocyanidins (UV)	95% Min
Particle Size	98% pass 80 mesh
Loss on drying	5% Max
Ash	5% Max
Heavy metals	10ppm Max
Lead	2ppm Max
Arsenic	2ppm Max
Mercury	0.1ppm Max
Cadmium	1ppm Max
Hygienic Index
Total plate count	1,000cfu/g Max
Mold & yeast	100cfu/g Max
Enterobacteriae	10cfu/g Max
E.Coli	Absent in 10g
Salmonella	Absent in 25g
Statements: Non-Irradiated, Non-GMO
Packaging: 1kg/aluminium foil bag, 25kg/drum (373750cm).
Shelf Life: 24 months stored in original packaging away from the light, and under the optimal temperature 10~25℃.

Introduction to Pine Bark Extract

Pine Bark Extract is primarily derived from the bark of the French maritime pine (Pinus pinaster) or North American white pine, with its core active components being proanthocyanidins (OPCs), along with phenolic acids, catechins, and other bioflavonoids. This extract is prepared through standardized aqueous extraction processes, typically stabilizing proanthocyanidin content between 65%-85%, resulting in a distinctive reddish-brown powder form. Recognized internationally as a representative plant-based antioxidant due to its high antioxidant activity and bioavailability, Pine Bark Extract has been used in dietary supplements and functional foods for over half a century. Its mechanism of action is similar to that of grape seed extract but exhibits a unique activity profile.

Efficacy of Pine Bark Extract

The core efficacy of Pine Bark Extract lies in its exceptional vascular protection and anti-inflammatory effects. Proanthocyanidins effectively enhance vascular elasticity, reduce capillary permeability, and improve microcirculatory function. They alleviate joint inflammation and edema by inhibiting inflammatory mediators (such as the NF-κB pathway). Clinical studies confirm its ability to relieve symptoms of chronic venous insufficiency and attention deficits and mild hypertension. Its antioxidant strength far exceeds that of vitamins C and E, and it synergistically promotes collagen regeneration, delaying skin photoaging. Recent research also suggests potential benefits for metabolic syndrome and diabetic retinopathy.

Application Fields of Pine Bark Extract

This extract is primarily used in cardiovascular health supplements, often for improving varicose veins, leg edema, and retinal microcirculation disorders. In sports nutrition, it is applied to reduce post-exercise inflammation and support joint health. The cosmetics industry incorporates it into anti-wrinkle, firming, and redness-repair skincare formulations. In the pharmaceutical field, it serves as a raw material for developing treatments for chronic inflammation. In functional foods, it is used as a natural antioxidant to preserve oils, and in pet healthcare, it supports joint care in aging animals. In recent years, its nano-encapsulated formulations have expanded into brain health products and medical foods.