Clip-in extensions are wefts that are clipped into your natural hair. This type of extension is considered the easiest, quickest and safest of the bunch. If you’re looking for a temporary style change, clip-ins are the best choice, as they’re low-maintenance and commitment-free.

Tape-in extensions are adhesive strips placed at the roots using heated glue. “Tape-ins work in ’sandwiches,’ meaning that you place a thin strand of hair between two pieces of extensions, and they all get glued together at the root,” explains Rus. “The strand of hair you're sandwiching needs to be very thin, about 1⁄8 inch, so the adhesive on both sides can bind together through the hair. If you pinch two fingers together and can feel them through the hair, you’re good to go.”

Sew-ins (or weaves) are the most popular hair extensions, especially for thicker hair. First, your natural hair is braided into cornrows and then, the extension is weaved into the braids using a needle and some thread. The installation takes around two (or more) hours depending on the number of rows needed.

Microbead (or i-Tips) extensions use tiny beads and pliers to clamp the extensions in place. These beads are usually matched to your hair color, making it easy to blend them in seamlessly with your natural strands. There’s no heat or glue involved and it takes around 2 to 4 hours to complete the look. You can rock the installment for up to four months before getting it redone. To keep them in top shape throughout that duration, you'll want to be gentle when styling, brushing and washing your hair

Fusion bonds are special keratin tips that are applied directly over your natural hair. This process uses a heated clamp to melt the glue and keep the extension in place. Similar to microbead extensions, it takes around 2 to 4 hours to complete the entire process. While they can be styled as you please, fusion bonds also come with a few challenges. For starters, they feature numerous chemicals that can cause hair loss, breakage and even scalp irritation for some people. It’s also a super expensive process, as you’ll have to reapply them every two to three months when new hair grows in. However, if you want a stronger and longer hold, and you have naturally fine hair, they’re a great choice.

Some people forget that hairpieces—wigs, buns and ponytail clippings—are a form of hair extensions. These accessories add fullness and length just like other extensions, while letting you switch up your look. When it comes to lengthening your ponytail, it only takes a few steps to rock the look: