Thinning hair happens to most people at some point in their lives: studies show that about 80 percent of men experience thinning, and almost half of women experience a change in hair thickness.

This can occur due to age, everyday stress, nutritional problems, or a combination of several factors. How this is displayed also varies. In some, it is localized around a line or part of the hair; for others (usually men) there is a growing spot on the top of the head; and some simply notice that their hair becomes less thick over time. Regardless of what causes it or what it looks like, one thing’s for sure: it’s annoying to notice.

Given that hair growth (and loss) is a complex and multifactorial process, we encourage people to take a broad approach to hair and scalp care. Your best chance for healthy hair growth is when you approach it from all angles.

This may include topical hair growth products (such as serums and shampoos), lifestyle habits (such as stress management and sleep hygiene), nutritional needs (which will be unique to the individual), and targeted supplements.*

As for supplements, we’ve rounded up the best options for thin hair.