This shampoo is like a protein shake for your hair. After a few uses, my hair felt thicker and stronger—like it hit the gym. The scent is sweet and refreshing, Don't expect a full mane if you're starting from a buzz cut, but if you're looking for some extra volume and strength, this shampoo's got your back. Solid addition to the grooming routine!

This stuff is bomb! I love the way it makes my hair look and feel, it cleans so well, and nourishes my hair! It's thick but doesn't weigh my hair down which I really like! Plus, it smells heavenly! It can sometimes be a little more than some drugstore brands but I think it is absolutely worth the money! Plus, it smells heavenly! I definitely recommend!

I have been using this biotin shampoo and it took my hair to the different world! Im just so amazed how this shampoo is doing so great on my hair. Making it so healthy, fuller, and shinny. I recommend this to everyone because I know its the best one ❤️

I really love this shampoo! I feel like it does a great job at making my hair feel thick and voluminous without drying it out! I love that this shampoo does not disturb my curl pattern at all and used with the conditioner it is even better. All of the OGX shampoos are great.

I have a lot of trouble with off branded shampoos and some of them tend to make my hair dry. This product didn't do that and made my hair feel soft. I would recommend this item to people who want soft luxurious hair. And I would continue to buy this.

I absolutely love this product. I would definitely keep using this. This shampoo is for flat hair to help thicken. To improve I'd say a bigger bottle please! It just lathers perfectly and sulfate free! Does does what it's designed to do. My hair is on the thin side but with this shampoo I can definitely feel the difference in the thickness! 10/10!

After I get my hair done I like to use this for a week after to keep my hair healthy because I always panic and think my hairs gonna break or fall out from the toner and all the products we use to maintain my color. This definitely satisfies me and it works wonders for my hair.

I've been using this consistently for about 2 months and washing my hair every day (gasp! I know) and I love how much healthier my hair and scalp appear to be. I've struggled with frizzy hair and weird scalp issues and this seems to help regulate those issues.

Ooohhh I never get tired of this stuff! I'm always looking to find something good for my hair, and stuff is fantastic! It provides it with nutrients that keep it happy and healthy. With curly hair like mine, using shampoos and conditioners that aren't specifically for curly hair is always a risky game, but if you use the right products after washing, it truly doesn't make a difference (at least for me)!

Oh my gosh this stuff is amazing! First off.. it smells AMAZING! I bought the big bottles with the pumps and I love them! Second.. I feel like it really does clean my hair, and doesn't leave it feeling like there's still product residue. Third.. the price is so inexpensive! I love love love this stuff and the packaging is sheik and simple.[product:ogx-biotin-collagen-shampoo]