Procyanidin B2 is a dimeric B-type proanthocyanidin composed of two epicatechin units linked by a C4-C8 bond. It is isolated from apple peel (Malus domestica), grape seeds (Vitis vinifera), and cocoa beans (Theobroma cacao). Procyanidin B2 has gained significant research interest for its ability to promote hair follicle epithelial cell proliferation and anagen phase initiation.
This makes it a promising ingredient for hair growth applications. It also demonstrates potent antioxidant, cardioprotective, and anti-inflammatory activities. Commercially, procyanidin B2 is used in hair growth supplements and topical products, cardiovascular nutraceuticals, and anti-aging cosmeceutical formulations.
