January 2011 in “Web journal anti-aging medicine/Anti-aging medicine” In this study, kamishoyosangoshimotsuto extract improved skin moisture, texture, and brightness, as well as hair thickness and strength in women with skin and scalp hair problems over 24 weeks.
December 2023 in “Polish Journal of Chemical Technology” This study found that Ajuga reptans leaf and root extracts, when incorporated into cosmetic products, improved skin hydration, elasticity, pore size, hyperpigmentation, and wrinkle depth.
May 2024 in “Journal of medicinal food” This review highlights jojoba oil's unique composition and its growing therapeutic applications, noting its antioxidant, anti-acne, antidiabetic, and antibacterial properties, as well as its use in various pharmaceutical formulations.
January 2020 in “대한미용학회지” This review discusses various natural substances used in scalp improvement cosmetics and reports their potential benefits, without providing new clinical results, and suggests more comprehensive studies are needed.
September 2025 in “International Journal for Research in Applied Science and Engineering Technology” This paper discusses the potential benefits of incorporating guava leaf extracts into skincare, hair care, and oral care products, highlighting their antibacterial, antioxidant, and acne-treating properties, as well as their possible effects on dandruff removal and hair loss reduction.