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In this experimental study using male rabbits, researchers found that a 7.5% concentration of green tea leaf ethanol extract hair tonic was nearly as effective in promoting hair growth as the positive control, minoxidil, over a 21-day period.

In this study, researchers tested a tea leaf ethanol extract (Camellia sinensis) hair tonic and found it increased average hair growth compared to positive and negative controls over 28 days, but exhibited some instability and inhomogeneity after accelerated testing.

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

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 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.

This study evaluated a hair tonic formulated from oil palm leaf extract, finding it demonstrated very strong antioxidant activity and could prevent hair decolorization from sun exposure, with effective concentrations ranging from 25 to 200 ppm.

This article reviews the use of herbal ingredients in hair care products, highlighting their potential benefits for scalp health, hair growth, and condition, while also discussing challenges such as individual sensitivities and the importance of transparent labeling.

This study comparatively evaluated different extraction techniques for Schinus terebinthifolius Raddi leaf extracts and found that conventional extraction with ethanol yielded the highest antioxidant activity and beneficial effects on skin cell viability, supporting its potential use in sustainable cosmeceutical formulations targeting skin aging.

In this study, Ipomoea batatas leaf extracts exhibited significant hair growth stimulation and strong antifungal activity against Malassezia furfur, potentially offering a promising treatment for alopecia with further research needed on their androgen receptor inhibition potential.

In an animal study, researchers found that a hair tonic containing a 1:1 ratio of kelor and rambutan leaf extracts led to similar hair growth in rabbits compared to a minoxidil control, with average hair lengths of 3 cm versus 2.025 cm, respectively.

This study reports that a 30% ethanol extract of a plant mixture enhanced hair growth in human hair dermal papilla cells and mice, suggesting potential use in hair growth products.

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 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, a 5% black tea extract hair tonic showed hair growth-promoting activity in rabbits, achieving 9.62 mm growth by day 18, with all tested formulas proving physically stable.

In this study, the methanol-ultrasound extract of Dendropanax morbifera leaf showed potential for use in functional cosmetics and hair growth products due to its high antioxidant capacity and effects on growth factor expression without cytotoxicity.

This study found that Adiantum capillus-veneris extract exhibited significant antidepressant and anti-anxiety effects in rats, likely due to its antioxidant and anti-inflammatory properties.

This study concluded that a 5% concentration of celery extract in hair gel provided the best preparation characteristics, including standard parameters for organoleptic properties and spreadability.

This study found that ethanol extract and n-hexane fraction of rampai leaves may stimulate hair growth in rabbits, showing potential as an anti-alopecia treatment.

This study found that Allium ascalonicum L. extract may improve insulin resistance by increasing insulin tolerance test values and lowering blood glucose levels, though more research is needed to understand its effects on metabolic disorders.

This study found that adding menthol to Phyllanthus niruri ethanol extract gel enhanced hair growth and thickness in rats.

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.

In this laboratory study on rabbits, the researchers observed that both FET and FHE fractions improved hair length and weight, but minoxidil still led to better results, highlighting the comparative effects of different treatments on hair growth over 28 days.

This study formulated a nanogel with Bangkal bark extract that showed moderate antibacterial activity against Propionibacterium acnes, with the F3 formulation (8% extract) achieving the highest inhibition zone of 8 mm, suggesting potential as a natural acne treatment.

This review explores herbal medications for skin disorders, covering their clinical efficacy, safety, and common drug interactions, but reports no new clinical results.

This study observed that using moringa leaf extract in hair tonic reduced hair loss among the sampled students, with the average hair loss decreasing from 118.75 strands to 79.25 strands per day.

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

In this study on male rabbits, a hair tonic formulated with delipidated ethanol extract of Capsicum frutescens L. leaves at concentrations of 5%, 10%, and 20% promoted hair growth more effectively than a placebo and similar to 2% Minoxidil at the highest concentration.

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.