Alopecia is a condition that impacts over 50% of the global population. The Food and Drug Administration (FDA) only approved topical minoxidil and oral finasteride for prevention of hair loss, and hair regrowth. Numerous in vitro and in vivo studies on active herbal ingredients suggest the herbal active ingredients may help control hair loss when used alone, together, and in combination with synthetic anti-hair loss medicines. For over 100 years, thyme, lavender, rosemary, and cedar wood essential oils have traditionally used to treat hair loss. According to current researches about topical green tea in the prevention and hair re-growth, this plant may be a suitable and relatively reliable alternative to chemical drugs such as minoxidil and finasteride. Green tea contains polyphenol compounds called catechins. Catechins have a significant anti-hair loss due to their effect on the dermal papillae cells (DPCs); DPCs are specialized fibroblasts that control the hair growth cycles. This article reviews the potential impact of green tea (Camellia sinensis) in reducing hair loss, hair re-growth, and its particular effect on dermal papillae.