There are plenty of Biotin-infused teas on the market. For example, in the United Kingdom, Twinings' line of Superblends herbal tea includes their Glow infusion, which has notes of Strawberry and Cucumber blended with Green Tea, Aloe Vera, and Biotin. In the States, brands like VitaCup offer a similar mix of flavors and vitamins with their Beauty rooibos tea.
However, you don't necessarily need to rely on one specific vitamin to get healthier hair. As herbalist Rachelle Robinett told mindbodygreen, any tea with herbs "that are high in minerals and nutrients" will help maintain healthy hair growth, especially if the herbs are rich in minerals like iron.
While you can take these herbs in supplement form, Robinett recommends "steeping them in water to make a tea, which helps the absorption rate." The tea she suggests the most is Alfafa tea, derived from Alfafa grass — a perennial plant also known as Lucerne (via Gardening Know How).
