The Types segmentation classifies hair growth supplements by active ingredient families, each influencing market dynamics differently. Biotin‑based products dominate due to widespread consumer awareness of biotin’s role in keratin synthesis, accounting for a substantial portion of sales. Collagen and Protein‑complex formulations appeal to users prioritizing structural support of the hair shaft, often bundled with skin and nail benefits. Herbal‑extract supplements, such as saw palmetto, pumpkin seed, and caffeine, attract a niche segment focused on natural, plant‑derived solutions and are typically positioned at premium price tiers. Vitamin‑mineral blends (e.g., vitamins A, C, D, E, zinc, iron) serve as foundational offerings that capture broad consumer bases seeking general nutritional support. Finally, Multi‑ingredient complexes combine several of the above actives to address multiple pathways of hair loss, leveraging cross‑selling opportunities. Each type contributes to market breadth, with biotin and multi‑ingredient products driving volume, while herbal and collagen categories enhance margin potential.