Hair growth is the biological process by which hair is produced and lengthened from follicles in the skin. It proceeds through a repeating cycle in which each follicle moves between an active growth phase, a brief transition, and a resting phase before the old hair is shed and a new one begins to form. During active…
Hair growth is the biological process by which hair is produced and lengthened from follicles in the skin. It proceeds through a repeating cycle in which each follicle moves between an active growth phase, a brief transition, and a resting phase before the old hair is shed and a new one begins to form. During active growth, cells at the base of the follicle divide and become keratinized to build the hair shaft, while the rate and duration of growth determine how long and dense the hair becomes. Hair growth is shaped by many factors, including genetics, hormones, age, nutrition, blood supply to the scalp, and the influence of products or treatments applied to the hair and scalp. Disruptions to the normal cycle can result in excessive shedding, thinning, or impaired regrowth, which is why the process is central to research on hair loss and on therapies intended to support growth. Studies in this area examine the signals that regulate follicle cycling, the nutrients and conditions that affect the follicle, and the effects of topical and systemic interventions. As part of Dermatologic Research And Therapy, this open-access page gathers peer-reviewed studies relevant to the hair follicle, the hair growth cycle, and approaches aimed at supporting hair growth.
5 peer-reviewed articles, ranked by relevance. Each links to its DOI.
The 5 articles above have been cited 6 times in the scholarly literature. Citation data via OpenAlex and Crossref, updated Jun 2026.
A sample of recent works citing this journal's research on Hair Growth, linking to each citing work.