Botanical Synergies for Hair Health: A Review of Saw Palmetto and Nettle in Non-Pharmaceutical Formulations
January 2026
The paper reviews the potential benefits of Urtica dioica (Nettle) and Serenoa repens (Saw Palmetto) in non-pharmaceutical formulations for hair health, particularly in managing androgenetic alopecia and diffuse hair thinning. Nettle promotes hair growth by improving circulation and partially blocking sex hormone-binding globulin, while Saw Palmetto inhibits 5 alpha-reductase, reducing follicular miniaturization caused by DHT. The combination of these botanicals suggests a synergistic effect, appealing to consumers seeking evidence-based nutraceuticals. However, there is a need for standardization and clinical validation of these polyherbal formulations to ensure their safety and efficacy.