A "Proprietary Blend (Herb/Botanical)" is a term that refers to a mixture of various herbs and botanicals, often without specifying the exact amounts of each ingredient. The use of such blends to support the reproductive system is primarily rooted in traditional medicine practices. For centuries, various cultures have used herbal remedies—such as maca root, ashwagandha, tribulus terrestris, dong quai, and chasteberry—to address reproductive health, menstrual irregularities, libido, and fertility concerns. The rationale behind these blends is often based on anecdotal evidence, traditional use patterns, and historical herbalism texts. However, while individual herbs within these blends may have limited scientific studies suggesting some benefits for reproductive health, the efficacy and safety of the proprietary blend as a whole are seldom systematically researched. The lack of transparency regarding ingredient amounts further complicates evaluation. For example, some herbs like chasteberry have moderate evidence for supporting female reproductive health, while others have minimal or conflicting data. Overall, the justification for using proprietary herbal blends is mostly traditional, with only select ingredients showing low to moderate scientific support. Consumers should approach such products with caution, as efficacy is not guaranteed and interactions or side effects may occur.