Review Article

A Comprehensive Review on Pharmacotherapeutics of Herbal Bioenhancers

Table 6

Effect of piperine on the serum β-carotene levels during a 14-day supplementation in human volunteers [20].

Treatment ( )β-carotene (μg/dL) AUC (μg/dL) × (time in days)
Day 0Day 14Change

β-carotene + placebo 16.3 ± 2.6 47.2 ± 6.4 30.9 ± 5.4 272 ± 47.6
β-carotene + piperine 16.0 ± 3.1 65.8 ± 9.7 49.8 ± 9.6 435 ± 74.2