Supplements in the Sexual Health subcategory are formulated to enhance the user’s sexual desire, erectile function, virility, stamina, energy and enjoyment. Products here may be designed for men, women or for people of any gender. They may be multi-ingredient formulas, or single-ingredient products. Meanwhile, some contain herbs, amino acids and other natural nutrients, others contain synthetic ingredients, while others still use blends of both. These products are said to help achieve results in different ways – from enhancing blood flow, to increasing hormone production. They may even contain ingredients that influence sexual health indirectly – such as by improving sleep and reducing stress or fatigue.