People Say Their Hair Grows "Twice as Fast" With This Shampoo and Conditioner Set — and It's on Sale for $20

Before the holiday season really starts, get your beauty routine in check. If you're not loving how your hair looks these days, the solution could lie in new shampoo and conditioner formulated specifically to volumize and thicken strands. Ahead of Black Friday, you can get the OGX Thick and Full Biotin and Collagen Shampoo and Conditioner Set for its lowest price ever on Amazon.

The 25.4-ounce shampoo and conditioner bottles are going for $10 each, so you can get an entire set for less than the price of a trim. Both products are infused with biotin to promote new growth and collagen to prevent further damage and thinning. The shampoo is also made with hydrolyzed wheat protein, which strengthens and moisturizes hair.

Shop now: $20 (Originally $28); amazon.com

You can use these products on a wide range of hair types, including oily, damaged, color-treated, frizzy, and straight hair. They're both free of sulfates and parabens.

"Not only do I have thin hair that is always less than flat, I don't have a lot of it either, so I have always struggled with fullness and the healthy, bouncy look," one reviewer began. "I switched to this brand many years ago and have not gone back to any other store brand. My hair has also been growing faster than it did when I was a teenager. I have also used this on my girls, and their hair is extremely healthy, shiny, and grows like a weed."

A second shopper wrote, "I swear my hair is growing twice as fast since switching to this shampoo and conditioner. I've been growing out my hair for eight months in preparation for my wedding. For the last four months, I've been using this shampoo and conditioner and taking a biotin supplement. My hair has grown 2 inches in that time and feels so soft."

With a little over a week left until the major influx of Black Friday deals, now is your opportunity to take advantage of early, under-the-radar sales. Shop the OGX Thick and Full Biotin and Collagen Shampoo and Conditioner Set for just $20 now.