Three testimonials appear on the page, labelled verified purchase, with ratings of four and five stars.
The label suggests the writer bought the product, but the page does not say who checks that or how. It is also the brand's own selection: we cannot tell whether these three are typical or the best of many.
It is a small point in their favor that not all are five stars. A four-star review reads as slightly less polished than uniform praise.
Read them for specifics, such as how long the person took it, what they noticed and what did not change, not for the star count. Three testimonials cannot represent a population, and the page itself says reviews are opinions, not guaranteed outcomes. Balance them against the label, the refund terms and your own log.