Applications of Tea (Camellia Sinensis) and Its Active Constituents in Cosmetics

This review compiles scientific evidence on the effects of green tea polyphenols on cosmetic issues like aging and acne, but reports no new clinical results.

This study found that Camellia sinensis (tea) extracts may protect hair from UV-induced damage and color change, with efficacy linked to higher concentrations of key compounds like catechins.

This review examines the health benefits of green tea, focusing on catechins, but reports no new findings; the authors emphasize potential benefits for conditions like cancer, heart disease, and diabetes.

This study found that Camellia oleifera leaf extracts, especially the 50% ethanolic extract, have significant antioxidant activity and may offer promising bioactive compounds for cosmetic and pharmaceutical uses.

This review highlights the multifunctional benefits of plant-derived ingredients in skincare, such as antioxidant and anti-inflammatory effects, supported by biological evidence from medicinal plants like Camellia sinensis and Panax ginseng, suggesting their potential as natural dermocosmetic agents.