There are two main categories: traditional hormone replacement therapy (HRT) and bioidentical hormone replacement therapy (BHRT). Traditional HRT uses synthetic or animal-derived hormones. BHRT uses plant-based hormones that can more closely match your body’s natural chemistry. Through these two options, you’ll also find a variety of delivery methods such as pills, patches, creams, gels, and even subcutaneous pellets or vaginal rings. The right type and format often depend on your symptoms, preferences, and overall health profile.