The holidays are coming and you know what that means? Party season! It's my favorite time of year. I love catching up with old friends and eating to my heart's content at family functions. Between work events, family get-togethers, and New Year's, I have, like, three parties a week.

But I'll tell you whose least favorite season is the holidays – my hair! In previous years, over-styling left my hair a mess - dry, damaged, split ends for days... After trying a gazillion hair masks and expensive treatments, I got desperate.

Nothing I did could prevent this hair catastrophe, until one day I was searching online for a way to fix split ends, dryness, and volume and I found Function of Beauty. It was the only product that tackled all my hair issues.

Function of Beauty is a personalized shampoo and conditioner. Unlike store-bought brands that only focus on one issue, Function of Beauty allows you to create your very own formula based on all of your unique hair needs. Here are four reasons why we all need Function of Beauty this holiday season:

It's a money saver

Between presents and new outfits, the holidays take a huge toll on our wallets - especially since I'd get a blow dry at $70 bucks a pop for every party or event! But now that I've found Function of Beauty, my hair is so healthy and volumized, I can easily style it myself at home. Buh-bye expensive treatments and blow dry bars. It's cheaper than high-end salon brands like Oribe, Kerastase, and Aveda. The 16oz shampoo and conditioner combo only costs $49 and lasts 2 months. Plus, shipping is free!

Personalize your hair needs

When you sign up for Function of Beauty you take a quick quiz - selecting your hair type (straight, curly, etc.), hair structure (fine, coarse, etc.), and, finally, hair moisture. Then determine five goals – I chose deep condition, strengthen, thermal protection, volumize, and shine. And it really works! Now my hair's glossier and more voluminous than it's ever been.

The greatest thing ever is that I got to pick a scent, a color, and even added my name to the bottle. My scent is "(fl)ower to the people" and it's aqua - to match my bath mat.

Change your formula as your hair-needs change

I experiment liberally with my hair throughout the year. This Fall, I dyed it mahogany. Came out fabulous, thank you. Luckily, Function of Beauty has a color protection formula. So, when Summer rolls around and absolutely fries my hair, I'll simply readjust my formula online and add in some moisture.

Function of Beauty always refers to your personal profile, and emails you, before sending your order, so you can change things as needed. You choose how frequently your subscription ships - monthly, every 2 months, or every 3 months. Plus, if it doesn't work the first time, they work with you to reformulate and find the perfect formula that works for you.

It's a great gift!

Not only has Function of Beauty saved my hair, but it rescued my mom's hair, too. I gifted it to her for the holidays because she is alwaaayys complaining about her stringy, oily hair. So I made sure one of her hair goals was oil control – along with anti-aging, curl definition, replenish, and . . . shine.

The bottles are sooo pretty. I chose my mom's favorite color - purple. Adding her name on the bottle was a lovely touch and made her present all the more special. My mom is vegan so it's difficult to find certain products for her. She was thrilled that Function of Beauty's formulas are 100% vegan, as well as paraben-free, sulfate-free, and cruelty-free.

Since I revitalized my holiday hair with Function of Beauty, it's no longer flat, dry, dull. It has natural volume, it's shiny, and super healthy! Besides, buying it for my mom was ingenious and one less gift to worry about.

SPECIAL OFFER: Function Of Beauty is giving our TrueSelf readers 20% OFF their first order. Follow this link and start the hair profile quiz!