February 2024 in “Skin health and disease” This source reviews popular cosmeceutical ingredients for skin care, noting that while they are popular among consumers for anti-aging benefits, many lack robust clinical evidence for their efficacy and safety, as they are not regulated by the FDA.
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December 2010 in “Copernican Letters” This article reviews popular peptides used in cosmetics for wrinkle treatment and presents no new clinical findings.
July 2025 in “Journal of Investigative Dermatology” In this study, AMP-303 injections demonstrated a trend toward increasing non-vellus hair count in men with mild to moderate androgenetic alopecia, notably showing a 14.5% peak increase at 60 days compared to saline, with effects lasting up to five months.