Given the chatter that this is a gold-standard ingredient for hair growth, you may be super tempted to hit "add to cart" on the first product you see if you've noticed changes to your hair such as ...

The shampoo and conditioner set uses ingredients such as biotin and keratin to help thicken locks — it's nearly 40% off.

What if you could reduce the problem for less than $30? Amazon's top-selling Bellisso Biotin Shampoo and Conditioner Set is a popular choice, and right now is a great time to try it out ...