There are hundreds of shampoos in the drugstore — but how can you tell which one is the best drugstore shampoo? That's where these reviews from our readers come in. Hair products, shampoo in particular, are of the utmost importance to our TotalBeauty.com readers. This will become clear as you peruse these glowing reviews of the best drugstore shampoo picks.

Every once in a while it's necessary to treat yourself, whether it's indulging in the chocolate-encrusted doughnut you cut out of your diet months ago or spending a luxurious day at the spa. Yet when we pamper ourselves, a hair treatment isn't always top of mind. We often forget about our poor hair, which we subject to heat styling, hair dye and other chemical-laden products.

Raise your hand if you've ever experienced sad, lifeless hair. Now, raise your other hand if you've ever tried to fight said limp hair with volumizers that promise full, sexy hair, only to end up with a sticky, goopy mess. OK, you can put your hands down now.

If you don't prime before applying eye makeup, you're committing a serious makeup crime. If you aren't convinced that you need (or have time for) this crucial step, maybe this will do it: Experts say that the No. 1 way to prevent makeup from melting and smudging is to prime. (Think about it this way: Taking an extra 10 seconds in the morning to apply eye primer is quicker than spending five minutes wiping eyeliner off your lower lids in the afternoon.)

For soft, manageable, beautiful strands, it's important to choose the best leave-in conditioner for your hair type. A good leave-in conditioner can help detangle strands, reduce fly-aways, tame frizz and keep curls soft and smooth; a leave-in conditioner that's too heavy can weigh it down or leave it looking greasy.