That's every three months, people. It really does make a huge difference: After three months, the bristles start to lose their shape, and cleanser begins to clog at the bottom of the tufts (so the tufts begin moving in clumps versus individually) -- meaning, your Clarisonic becomes less effective.

"People tell me they're becoming 'disenchanted' with their device, or aren't seeing the results they used to, and I recommend that they try using a new brush head," adds Alkridge. "Almost every single time, I hear from them that the fresh brush head totally changed their experience and they fell in love with Clarisonic all over again."

One of the biggest tips from Akridge: Use your Clarisonic every day, up to twice a day. Consistency is key to getting the best results. It's been proven to cleanse your skin six times better than if you were to just use your hands; since your skin is so clean, that means your skincare products will absorb better and work better.

Clarisonic has an array of brush heads designed for the most delicate skin to deep pore cleansing, so be sure you're choosing the best brush head for your skin type.