Statistical analysis was carried out on all pertinent parameters. Results obtained at visits on Days 1, 7, and 28 for each test treatment were compared to the baseline (Day 0) using Student's t test. Whenever appropriate, the results were expressed as mean of the measurements of all volunteers within each group. If relevant antiaging results were obtained, the selected statistical procedure was a hypothesis test—t test: paired 2 sample for means—to examine whether 2 means are equal or if there is a statistically significant difference between the 2 means.
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