In a double-blind, cross-over study small amount of BioPerine® (5 mg) combined with a formula containing 15 mg of ß-carotene, given as a food supplement once a day increased almost 2 – fold the blood levels of ß-Carotene in human volunteers.

However, a 60% increase in the area under the curve was observed during the experimental phase (ß-carotene + BioPerine®) compared to the control after 14-day supplementation.

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