Experts make the case for switching up your hair products regularly. You might have heard of skin cycling, which is the idea ...

However, not all blonde toners are created equal. Some are rinse-out, some are leave-in, and some are good, old hair masks.

As an E! Shopping Editor, I make tons of Amazon orders. While everyone talks about the viral products, these underrated game-changers I tried this year are the hidden gems that deserve more attention.