March 2022 in “Hair transplant forum international” In this study, a treatment combining fractional 1927nm laser with a growth factor serum was found to increase hair density and diameter in patients with androgenic alopecia over six months, without side effects, and three treatments at 4-weekly intervals were deemed most effective.
September 2025 in “medRxiv (Cold Spring Harbor Laboratory)” This study found that applying a topical scalp essence with Centella asiatica extracellular vesicles and growth factors significantly improved scalp health and hair growth compared to a placebo after 56 days.
January 2026 in “Plastic & Reconstructive Surgery Global Open” This study reported that applying stem cell serum daily resulted in eyebrow hair regrowth in a patient with chronic secondary cicatricial alopecia, and prevented hair loss in another patient with acute eyebrow trauma, suggesting it as a noninvasive treatment alternative.
November 2023 in “PubMed” This study found that treating mice with naringenin, alone or combined with minoxidil, significantly increased hair growth and follicle diameter and quantity, likely due to its antioxidant and anti-inflammatory properties.
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September 2016 in “Journal of Dermatological Science” This study reported that squarticles, nanoparticle carriers made from sebum-derived lipids, significantly enhanced minoxidil delivery to hair follicles in vitro, increasing follicular uptake sevenfold and minimizing systemic absorption compared to a free control solution, while showing good skin tolerability.