I bought this in a large size once I finished my smaller one because I loved it a lot. This made my fairly fine wavy hair feel thick and gave me some tighter curls which I loved to see. It is a very clean and agreeable scent and is great towards sensitive skin.

I am a big fan of OGX products. It all started with the Argan oil shampoo. But I wanted to branch out and try something new. So I opted for the thick & full biotin & collagen shampoo. Normally, I have thin straight hair. But this shampoo helped strengthen it. I would definitely recommend it to others with weak, thin hair.

My favorite hair care product I own! I use both the shampoo and conditioner and my hair has dramatically gotten stronger! I also have noticed it become more fuller too. I have been using this product for over a year and I don't plan on ever stopping!

I have used this shampoo on multiple occasions. I love the way it leaves my hair soft and feels more healthy. It has a very nice fragrance to it as well. It really targets my concerns of hair health. I am always satisfied when I use it. I highly recommend this shampoo.

This shampoo smells amazing. The consistency is thick so a little goes a long way. the color of it is lilac which is also something I like. It makes my hair feel healthy and it deep conditions it whenever I use the conditioner. it isn't expensive and is a great product

Love this shampoo! Leaves hair feeling amazing! I have also noticed my hair not breaking or falling as much since I started using this shampoo!!! I highly recommend it and it's value is amazing for the price! Great brand and I will continue buying this shampoo for years to come!!

I use this shampoo religiously because it has vitamins in it that your hair needs in order to grow thick and long. It is sulfate and paraben free and smells so good in the shower! Pair it with the biotin & collagen conditioner for the ultimate hair wash.

I love this shampoo. It lathers so nicely and it cleans my scalp so nice. I can usually find it for the same price as the smaller bottle so it's super affordable. I like it better than most shampoos because my hair doesn't get stripped of all of its oils. I do pre poo as well.

I absolutely love this shampoo. First of all it smells so so good. Then every time I wash my hair with this I have been noticing a difference after my hair is dried out just feels healthier. And I have been using this for about a year now, and you can see the difference my hair is so much stronger and healthier now because of this. I love it!!

OGX shampoos are excellent! They have a wide variety of shampoos that there is one for every hair concern and you will definitely find one for you! The Biotin and Collagen is excellent! It smells great leaving your hair smelling fabulous for along while! The shampoo leaves your hair feeling soft and silky and helps to make your hair feel and look healthy and thick!