As noted in the product description, raspberry leaf is included because it has a long history in women's herbal traditions. This is the specific reason given for its presence in teas designed for women. Its inclusion is part of what defines this blend's thematic character as a 'Women's Energy' tea.
In the context of this product, the raspberry leaf is one component among several—like hibiscus, peppermint, and liquorice root—that together create a balanced herbal infusion. It is not attributed with any specific physiological action in the source material. The tea is presented as a caffeine-free herbal drink for moments when you want a brighter, lighter feeling, with its ingredients chosen for their traditional use and contribution to the overall flavor and experience. The product is not a medicine, and its effects are described as subtle.