Resveratrol 500mg | 98% Trans-Resveratrol | 60 Capsules | Vit4ever

Resveratrol from Vit4ever

You often hear resveratrol mentioned in the same breath as red wine, but the substance itself comes from the grape, not the bottle. It is a polyphenol, one of thousands of plant compounds that plants produce in response to stress, fungi, or UV light. Vit4ever does not extract it from grapes, but from Japanese knotweed, a plant that naturally contains much higher concentrations. Each capsule provides 500 mg of trans-resveratrol with a purity of 98 percent, supplemented with piperine from black pepper. One bottle contains 60 vegan capsules, which is equivalent to two months' supply.

Why Japanese knotweed and not grapes

Red grapes contain resveratrol mainly in the skin, and even then in small amounts that vary by grape variety and harvest year. To achieve 500 mg of trans-resveratrol per capsule, you would need unrealistic quantities of grapes. Japanese knotweed (Polygonum cuspidatum) is a rhizome that is naturally much richer in this substance and is also easier to grow and harvest than wine grapes. Manufacturers have therefore been using the plant for decades as a source of resveratrol extracts, even though the plant is primarily known in Europe as a stubborn weed that is difficult to eradicate. Vit4ever standardizes the extract to 98 percent, so that the amount per capsule remains constant, regardless of which harvest is processed.

The difference between cis- and trans-resveratrol

Resveratrol exists in two spatial forms: cis and trans. They consist of the same atoms, but the arrangement differs, much like a left- and right-handed glove made from the same material but not fitting together. Trans-resveratrol is the more stable form and the one that is standardized in extracts. Light and heat can gradually convert trans-resveratrol into the cis form, which explains why resveratrol products are often in light-proof packaging and why a cool, dark storage place is advisable. In this product, the trans form is specifically measured and dosed, not the total of both forms together. You do not always see this distinction clearly on every label.

Piperine from black pepper

In addition to the knotweed extract, each capsule contains a black pepper extract, standardized to 95 percent piperine, the alkaloid that gives black pepper its sharp taste. Piperine is often processed in supplements together with plant extracts, a combination that can be seen in many formulas with polyphenols or curcuminoids. In this capsule, it is incorporated in a fixed ratio.

Vegan capsules with a limited list of ingredients

The capsule shell consists of hydroxypropyl methylcellulose, a plant-based raw material, making the entire product vegan and suitable for people who do not want to use gelatin. A small amount of rice extract has been added as an anti-caking agent, necessary to evenly distribute the powder during production and prevent clumping. Furthermore, the formula contains no flavorings or colorings. With an intake of one capsule per day, a bottle of 60 capsules will last two months. This also makes resveratrol in this form easier to dose than if you were trying to get the substance through food.

Resveratrol remains one of the better-known polyphenols from the plant world, precisely because it is so closely associated with grapes and red wine. Vit4ever opts for a concentrated source instead of a diluted one, with a fixed, standardized amount of trans-resveratrol per capsule and a piperine extract that has been added in a fixed ratio.