The invention relates to a composition for pharmaceutical or nutritional or cosmetic use, formulated for oral or topical use and possessing antioxidant activity against free radicals, comprising: a) a Vitis vinifera seed, or seed and leaf, extract containing a combination of the flavonoids catechin and quercetin in a molar ratio in a range from 6:1 to 3:1, respectively, or a′) a Vitis vinifera seed, or seed and leaf, extract containing a combination of the flavonoids catechin and quercetin in a molar ratio in a range from 7:1 to 4:1, respectively, or a″) a mixture of Vitis vinifera extracts a) and a′), or a′″) a mixture of catechin and quercetin in a molar ratio in a range from 7:1 to 3:1, respectively, together with b) an olive, Olea europaea L, leaf extract having a hydroxytyrosol content in a range from 1% to 30% by weight of the extract, or b′) hydroxytyrosol in an amount equal to that contained in the b) extract.

The invention relates to a composition for pharmaceutical or nutritional or cosmetic use, formulated for oral or topical use and possessing antioxidant activity against free radicals, comprising: a) a Vitis vinifera seed, or seed and leaf, extract containing a combination of the flavonoids catechin and quercetin in a molar ratio in a range from 6:1 to 3:1, respectively, or a′) a Vitis vinifera seed, or seed and leaf, extract containing a combination of the flavonoids catechin and quercetin in a molar ratio in a range from 7:1 to 4:1, respectively, or a″) a mixture of Vitis vinifera extracts a) and a′), or a′″) a mixture of catechin and quercetin in a molar ratio in a range from 7:1 to 3:1, respectively, together with b) an olive, Olea europaea L, leaf extract having a hydroxytyrosol content in a range from 1% to 30% by weight of the extract, or b′) hydroxytyrosol in an amount equal to that contained in the b) extract.

A threefold decrease in α-amylase inhibition, increase in insulin secretion and glucose uptake increase by the pharmaceutical composition of several naturally occurring substances and vitamins were observed when compared to the control cells, and a c.a. 1-1.5 fold decrease when compared to the positive control. More specifically Mix A and Mix B applied together with VitaminD+K2 shows significant effect on increased insulin secretion and glucose uptake by cells.

A threefold decrease in α-amylase inhibition, increase in insulin secretion and glucose uptake increase by the pharmaceutical composition of several naturally occurring substances and vitamins were observed when compared to the control cells, and a c.a. 1-1.5 fold decrease when compared to the positive control. More specifically Mix A and Mix B applied together with VitaminD+K2 shows significant effect on increased insulin secretion and glucose uptake by cells.

A threefold decrease in α-amylase inhibition, increase in insulin secretion and glucose uptake increase by the pharmaceutical composition of several naturally occurring substances and vitamins were observed when compared to the control cells, and a c.a. 1-1.5 fold decrease when compared to the positive control. More specifically Mix A and Mix B applied together with VitaminD+K2 shows significant effect on increased insulin secretion and glucose uptake by cells.

Provided is a grape pericarp extract that exhibits neuronal function modulating effects. The grape pericarp extract comprises 15 mg/g or more of malvidin-3,5-diglucoside in dry mass.

Provided is a grape pericarp extract that exhibits neuronal function modulating effects. The grape pericarp extract comprises 15 mg/g or more of malvidin-3,5-diglucoside in dry mass.

Disclosed herein are dietary supplement compositions and methods for increasing or stimulating bone growth, decreasing or preventing bone resorption, increasing bone strength, improving bone structure, and improving bone architecture comprising a first composition comprising a combination of at least two of: quercetin, Rehmannia sp., Rehmannia sp. root, Siberian ginseng, Sophora japonica, licorice, and ipriflavone, wherein the combination of the first composition increases bone morphogenic protein-2 gene, promoter or protein expression; and a second composition comprising an extract of pomegranate in combination with at least one of Siberian ginseng, Ginkgo biloba, green tea, Sophora japonica, Rehmannia sp., grape seed, Dong Quai, and ipriflavone, wherein the combination of the second composition inhibits the expression of RANK-L.

Disclosed herein are dietary supplement compositions and methods for increasing or stimulating bone growth, decreasing or preventing bone resorption, increasing bone strength, improving bone structure, and improving bone architecture comprising a first composition comprising a combination of at least two of: quercetin, Rehmannia sp., Rehmannia sp. root, Siberian ginseng, Sophora japonica, licorice, and ipriflavone, wherein the combination of the first composition increases bone morphogenic protein-2 gene, promoter or protein expression; and a second composition comprising an extract of pomegranate in combination with at least one of Siberian ginseng, Ginkgo biloba, green tea, Sophora japonica, Rehmannia sp., grape seed, Dong Quai, and ipriflavone, wherein the combination of the second composition inhibits the expression of RANK-L.

Disclosed herein are dietary supplement compositions and methods for increasing or stimulating bone growth, decreasing or preventing bone resorption, increasing bone strength, improving bone structure, and improving bone architecture comprising a first composition comprising a combination of at least two of: quercetin, Rehmannia sp., Rehmannia sp. root, Siberian ginseng, Sophora japonica, licorice, and ipriflavone, wherein the combination of the first composition increases bone morphogenic protein-2 gene, promoter or protein expression; and a second composition comprising an extract of pomegranate in combination with at least one of Siberian ginseng, Ginkgo biloba, green tea, Sophora japonica, Rehmannia sp., grape seed, Dong Quai, and ipriflavone, wherein the combination of the second composition inhibits the expression of RANK-L.