R. K. Shukla, M. S. L. Madhavi, S. Gudulkar, S. Mathur, and S. Punyani, “Comparative efficacy of topical hair growth serums on hair density and shedding: a double-blinded and randomized clinical trial”, Int J Res Dermatol, vol. 12, no. 4, pp. 283–289, Jun. 2026.