... causing pain, heaviness, swelling, fatigue, and unsightly visible veins. By strengthening capillary and reduce capillary osmosis, OPCs can relieve the ... and retinopathy. OPCs has been proved to improve retinopathy caused by diabetics, atherosclerosis, inflammation and aging. It has also ... are a popular treatment for aging skin, on the theory that by repairing elastin and collagen they will return skin ...