This shampoo and conditioner together are a perfect match and very effective with continuous use with strengthing hair strands and with hair growth. The quality is is salon like and leaves your hair feeling smooth soft and silky. It smells amazing and super easy instructions for washing and rinsing I would recommend this 1 million times over.

I have been using the OGX Biotin & Collagen Shampoo for a few weeks and the results are amazing. The texture is thick and luxurious, and it creates a rich lather that leaves my hair feeling super clean. Since I started using it with a regular frequency, I've noticed my hair looks much fuller and has a healthy shine. It really delivers on its promise of adding volume without weighing it down

​"I am absolutely loving the OGX Biotin & Collagen Shampoo! It really lives up to its 'Thick & Full' name. After just a few uses, my hair feels much more voluminous and has a noticeable bounce. It's perfect for adding body to fine hair without making it feel stiff or dry."

A little backstory…I have really fine hair that is starting to thin around my hairline and has no volume unless I curl or back comb it. I'm really picky with hair products because of that plus I color my hair. I'm not joking when I say this, but I noticed a difference after the first time I used this. My hair had volume that actually lasted. I had lift at the roots and I noticed even more volume when I curled my hair. It didn't mess with my coloring either and has a nice scent. The second time I used it, I still had great results.

This product, along with the conditioner is my absolute go to for my hair extensions. It keeps them feeling soft and moisturized. No stiffness, dryness or itchiness. Just light flowing hair. The scent is subtle but gorgeous too! It lathers really well and easy to dispense; a little goes a long way.

The OGX Thick & Full + Biotin & Collagen Volumizing shampoo works wonderfully! It leaves my hair feeling thicker, fuller, and healthier without weighing it down. After just a few uses, my hair looked more voluminous and had great bounce. It smells amazing, lathers well, and rinses clean without leaving residue. Perfect for fine or flat hair, and a little goes a long way. I'm very happy with the results— I will never use anything else!

This shampoo is AMAZING!!! I cannot recommend it enough! It leaves my hair so soft and smooth. My hair feels incredible! I've been loosing a lot of hair due to stress and hormones and when I found this I had to try it! I absolutely love this shampoo! My hair just feels healthier it's awesome! If you are thinking about it, give it a try!!

I have fine, shoulder length hair with waves. This stuff cleans my hair without weighing it down, it doesn't create volume but it doesn't say it will. I also don't have much frizziness afterwards. Pleasant, light scent. A little goes a long way. Overall a good shampoo.

I have dry overprocessed hair because of bleaching, and am in my 50s. Not many products do what they say, but after using this shampoo, my hair is always silky soft. I love it! My hair is also curly so frizz is always an issue... But not with this shampoo. So if you have the same problems I do, then I encourage you to try it. You won't be disappointed!

Used for about 3 months and lost about 59% of my hair. I wasn't sure if it was related but after seeing my hair stylist, she mentioned there were lawsuits associated with this exact shampoo and hair loss. I'm now seeing a dermatologist and am on medication and specialized shampoo to regrow my hair.