Is there a supplement one can take. Asking for ....oh I forget.
Biotin is available at Walmart. It is a common B vitamin.
It might be better to get a B complex from any store. However, due to issues some have folic acid building up and with converting normal B vitamins into active forms in the body, a B complex with active forms of B vitamins is a better B complex choice, despite the higher cost of active B vitamin forms.
Consider Jarrow’s “B Right” or Douglas Laboratories “B Complex,” which have the active forms of multiple B vitamins with normal biotin. If someone is low in biotin, they are probably low in other B vitamins, which, aside from the folic acid form of folate, cannot build up in our bodies for much longer than a day (the folic acid form of folate can build up for weeks if having too much).