Liposome-encapsulated procyanidins are a modern delivery system designed to improve the stability, solubility, and biological activity of procyanidins, which are naturally occurring polyphenolic compounds found in grapes, cocoa, apples, berries, and some medicinal plants. Procyanidins are well known for their antioxidant, anti-inflammatory, and potential cardioprotective properties. However, their practical use in food, cosmetic, and pharmaceutical applications is often limited by poor water solubility, instability during processing and storage, and low bioavailability after oral administration. Liposome encapsulation offers an effective way to overcome these challenges.Liposomes are microscopic vesicles composed of one or more phospholipid bilayers surrounding an aqueous core. Because of their amphiphilic structure, they can carry both hydrophilic and lipophilic substances. In the case of procyanidins, the compounds can be incorporated into the lipid bilayer or the internal aqueous phase depending on their molecular characteristics and the preparation method. This encapsulation creates a protective barrier that shields procyanidins from oxygen, light, heat, and pH-related degradation. As a result, the active ingredients remain more stable during formulation and storage.One of the most important advantages of liposome-encapsulated procyanidins is improved bioavailability. After ingestion, free procyanidins are often rapidly degraded or poorly absorbed in the gastrointestinal tract. Liposomes can enhance their absorption by increasing contact with biological membranes and facilitating transport across intestinal barriers. This can lead to greater systemic exposure and potentially stronger biological effects at lower doses. In addition, liposomal delivery may allow for controlled or sustained release, helping to maintain effective levels of procyanidins over a longer period.In food applications, liposome-encapsulated procyanidins can be used to enrich beverages, dairy products, functional foods, and dietary supplements without significantly affecting taste or appearance. In cosmetics, they are attractive ingredients for anti-aging, skin-soothing, and protective formulations because of their ability to reduce oxidative stress and support skin health. In pharmaceutical research, liposomal procyanidins are being explored for their possible roles in protecting cardiovascular function, reducing inflammation, and modulating metabolic and neuroprotective pathways.The preparation of liposome-encapsulated procyanidins usually involves methods such as thin-film hydration, ethanol injection, high-pressure homogenization, or ultrasound-assisted techniques. The final characteristics of the liposomes, including particle size, surface charge, encapsulation efficiency, and membrane composition, strongly influence performance. Smaller and more uniform particles generally provide better stability and absorption. Phospholipids, cholesterol, and surface modifiers may be added to improve structural integrity and storage life.Although liposome encapsulation significantly improves the functional potential of procyanidins, challenges remain. These include cost, large-scale production, long-term stability, and possible leakage during storage. Nevertheless, continued advances in nanotechnology and formulation science are making liposomal systems increasingly practical. Overall, liposome-encapsulated procyanidins represent a promising strategy for enhancing the delivery and effectiveness of these valuable natural antioxidants across multiple industries.