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This study investigated whether combinations of green tea leaf and gotukola extracts could act as a hair growth stimulant but reports no definitive results on the most effective combination.

This study reported that a 4% water fraction of green tea leaf extract showed the most effective hair growth promotion in rabbits.

This study found that a combination of 5% green tea leaf extract and 2.5% gotukola extract stimulated hair growth effectively, achieving a growth rate of 2.689 cm in 28 days.

This review concluded that a herbal hair tonic formulated with 2.5% green tea leaf extract, in combination with specific solvents and additives, showed the best properties for stimulating hair growth.

This study concluded that hair tonic formulations using extracts of green tea leaves, celery leaves, or their combination can effectively promote hair growth in guinea pigs, with the fastest growth seen using a 2.5% green tea to 7.5% celery leaf extract ratio.

In this clinical trial, oral consumption of a persimmon leaf extract-containing complex significantly increased hair density and thickness over 24 weeks compared to a placebo, although improvements in hair gloss were not statistically significant.

This study reported that green tea extract may promote the excretion of copper into the hair in mice.

In this study, researchers developed a shampoo using ambon banana peel and green tea leaves, reporting that it showed positive characteristics and was safe for addressing hair loss, with optimal viscosity levels achieved in certain formulations.

This study developed a novel hair-straightening shampoo incorporating a polyphenol–inorganic sulfate redox agent, finding that it effectively straightens hair while enhancing strength and reducing damage due to its protective polyphenol coating.

In this study, 33% of mice treated with polyphenol extract from green tea showed significant hair regrowth, while no control group mice exhibited hair growth.

This study evaluated green tea extract-loaded spanlastic formulations and found that a vesicle builder to edge activator ratio of 8:2 produced optimal characteristics, including a particle size of 419.70 nm, an entrapment efficiency of 60.85%, and a drug loading of 11.07%.

In this study, researchers evaluated the effects of green spinach leaf extract on hair growth in New Zealand rabbits and found that the 15% concentration formula resulted in the highest average hair growth compared to other concentrations and controls.

This review discusses plant extracts for dermatological use, highlighting evidence that some can reduce edema in chronic venous insufficiency or help treat actinic keratoses, but it reports no new clinical results.

This study developed EGCG-loaded nanohydrogels using ethyl cellulose and polyvinyl alcohol to enhance the stability and delivery of the hydrophilic drug in aloe vera gel, optimizing encapsulation efficiency and drug release properties.

This review discusses herbal therapies for dermatologic disorders, focusing on those with scientific evidence of efficacy and common interactions, but reports no new clinical results.

This study suggests that while complementary and alternative treatments for hair loss are becoming more popular, their effectiveness and mechanisms remain largely unverified.

This review discusses the potential of plant-based preparations for treating hair loss and reports no new clinical results; the authors highlight herbs with evidence of efficacy against alopecia.

This review highlights the potential of plant-derived molecules like Epigallocatechin-3-Gallate and Ginsenosides to promote healthy hair growth by enhancing nutrient supply and blood flow to the scalp, and notes their growing role in natural hair care product development.

This study reviews existing literature on botanicals for androgenetic alopecia, noting a growing interest and emphasizing research on hair growth stimulants, especially involving green tea and other specific botanicals.

In this study, researchers developed and assessed two polyherbal hair tonic formulations, finding that Hair Tonic A containing 10% white tea extract improved hair thickness, manageability, and anti-frizz properties, particularly for blonde and black hair, while demonstrating greater stability compared to Hair Tonic B.

This review discusses potential cosmeceutical treatments for hair loss, including ingredients like procyanidins and isoflavones, but does not present new clinical outcomes; the authors highlight the promise of further research.

In this study, the researchers optimized the extraction conditions for crude polysaccharide from Hibiscus rosa-sinensis leaves, achieving a yield of 9.66% and demonstrated strong antioxidant activities in vitro.

This review collected findings on the various cosmetic and therapeutic properties of tea extracts, highlighting their antioxidant, anti-inflammatory, and photoprotective effects among other benefits for skin and hair care.

This review discusses the dermatological applications and potential health benefits of Epigallocatechin-gallate (EGCG) from green tea, but provides no new clinical findings.

This review highlights the use of natural products in cosmetic-containing herbals for skin and hair care but reports no new clinical results, calling attention to their claimed curative properties and minimal side effects.

This study found that hot water extract of Hydrangea serrata leaf and hydrangenol promoted hair growth by enhancing 5α-reductase inhibitory activity, stimulating dermal papilla cell growth, and exhibiting anti-inflammatory and anti-androgenic effects in cell cultures, mice, and human skin organoid models.

This study found that a 12-week regimen of a botanical supplement significantly improved skin and scalp health in women exposed to high pollution, enhancing factors like skin radiance, moisturization, and reducing wrinkle depth and scalp redness compared to a placebo.

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.

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.

In this study, the herbal complex of Houttuynia cordata, Perilla frutescens var. acuta, and green tea promoted hair growth in C57BL/6 mice, enhancing regrowth and follicle development compared to controls.