[This review was collected as part of a promotion.] Great product considering the cost! Effective in cleansing hair without completely stripping hair of moisture. Scent is pleasant and not overpowering. Packaging is simple. Texture is gel like similar to typical shampoo.

I thought this product worked great, it really helped to create volume and thickness, as well as helping with damaged hair to rebuild. It lathers really well which helps cut through the product build up. I am definitely going to buy this again but in the jumbo size!

Best shampoo out there. Helps my thin, silky hair have more volume instead of being flat on my head. It doesn't leave my hair feeling anything but clean and is easy on my hair too. I Love this brand as a whole but this product is awesome! Definitely recommend.

I love this shampoo & conditioner! It smells lovely and leaves my hair feeling so soft. I can usually go 2-3 days between washes (which is really good considering I workout and sweat nearly everyday). It’s not super pricey and you can find it at most drugstores!

I used this for years because I loves the way it smelled and felt it really cleaned my hair the way I like. My hair was super soft and felt strong but I did always wish my hair had more volume and I did have to wash my hair more often as it would get greasy sometimes the day after I washed it.

I have African-American fine hair that is wavy and curly. I had previously used Coconut Milk, Keratin, and the Brazilian Keratin shampoos, as well as the Keratin conditioner, by OGX. I had been eyeing the Biotin & Collagen one for months and decided to try it. Best decision because it has been the best shampoo and conditioner for my hair. I noticed a difference immediately with regards to my hair feeling thicker. I actually take biotin pills which help to thicken my hair, but this shampoo and conditioner have been AMAZING for adding more thickness. Even though I don't wash my hair daily, I use the conditioner on a daily basis by thinning it out a bit with a little water and applying it to my hair as well as wrap foam. Daily use of the conditioner keeps the natural softness of my hair without making it too soft and more frizzy. Wish there was some type of hair paste for this collection to help define curls.

[This review was collected as part of a promotion.] I've been using the OGX Biotin & Collagen Shampoo lately, and it's been a great addition. Formulated with key ingredients—biotin and collagen, this shampoo is designed to help strengthen and volumize hair. The biotin helps with hair growth and strength, while the collagen adds a boost of volume. Besides, the shampoo gives a rich lather, and the scent is pleasant without being overpowering. My hair feels stronger and healthier after every wash. Overall, the OGX Biotin & Collagen Shampoo has made a noticeable difference in my hair's appearance and texture, and I’m really happy with the results.

I recently purchased Thick & Full Biotin & Collagen Shampoo after reading the reviews. I have slightly curly hair that can be dry due to our hard water issues. I like to wash my hair daily but it becomes too hard to the touch. This Biotin works well with my hair and leaves it feeling soft and manageable. I personally have noticed my hair looks thicker and I believe It's due to the Collagen in the ingredients. I will continue to purchase and use this shampoo.[product:ogx-thick-&-full-biotin-&-collagen-shampoo-13-fl-oz]

The best shampoo by this brand. I love it so much, and I rarely ever use anything else. It truly does help strengthen your hair, and stimulates hair growth. When I use this shampoo, my hair grows almost twice as fast!! This means getting more haircuts, which I hate, but it’s definitely a good problem to have!

I absolutely adore this conditioner from the scent down to the lather. This product is very affordable it can be found at all of your local hair and beauty supply store‘s and it really gets the job done. I would definitely recommend and it is one of my favorite Ogx lines to use.