Which drink is best for hair regrowth?

I'm curious to know, when it comes to promoting hair regrowth, which beverage stands out as the most effective choice? Are there any scientific studies or research findings that suggest a particular drink can aid in hair rejuvenation? Perhaps there's a specific nutrient or combination of ingredients that are believed to stimulate hair follicles and encourage new growth. Can you elaborate on the potential benefits and mechanisms behind these beverages, and perhaps even provide a few examples of drinks that might be worth exploring?