[This review was collected as part of a promotion.] I really loved reviewing this product as I suffer with really thin hair. This shampoo smells amazing and you get a lot in the bottle which lasts a long time as a little goes along way. My hair was left feeling incredibly soft and it was thicker with volume after one use. I also found that even with the humidity, my hair still held up using this product! 

I've been using this shampoo and conditioner for years. Have loved it until recently. For some reason the shampoo, after a week or so, turns to a hard gel in the container. The first time it happened I thought it was just a fluke but this 2nd container has done it also. I wash my hair every day so it's not like it sits for long periods of time.

I used to love this shampoo and conditioner (it had a light purple in color to it) but since they changed the formula (now the shampoo is clear in color and the conditioner is white) it doesn’t work as well anymore. I have a full head of fine wavy hair. The old formula gave my waves extra body, fullness and bounce. The new formula doesn’t seem to do anything for my hair except leave me with droopy waves without much bounce or fullness - so that’s a bummer :( I wish they would offer both old and new formulas Until then, I’m trying/exploring different shampoos/conditioners off by other companies.

This is by far my favorite drug store shampoo! I love it! It makes my hair feel soft and smooth, and when my hair dries it looks silky and shiny, overall it makes my hair look so healthy! It has also helped me with hair growth! It’s amazing! 10/10 I highly recommend it!

I bought this product last night and used it for the first time. My hair has always been badly damaged from dying it and using a straightener. My hair feels like it has never been touched by any chemicals, heat, etc. I strongly recommend this product to anyone whose hair is basically fried and brittle!

Hi I been using this shampoo for a very long time but I bought this new ph levelled shampoo but it looked a bit different it was a bit liquidity and light shade of purple which is different from the one I have previously used. I’m not sure could you please confirm is this is something I have to worry about????

I really like the OGX brand! This is my favorite one. The smell is awesome. It doesnt leave any waxy build up and definitely feels like a more natural product. My hair is fairly thick already so Im not sure it necessarily helps in the thickness aspect.

This shampoo is fantastic! This makes my hair feel super smooth, soft and thicker! This also gives it a beautiful shine. It smells wonderful and is also sulfate free. I switch up shampoos constantly and this has to be one of my favorites. It makes me feel very fresh and clean and gives my hair a ton of volume. This makes my hair look and feel healthy again. This is perfect for my dry and damaged hair. I am very satisfied and want to buy more. I recommend trying this! I

I really wanted to love this shampoo; it smells great, is paraben-free and also contains biotin. Unfortunately, every time I use this shampoo my hair is greasy again by the end of the day and I have to wash my hair the next day with a different shampoo to get the residue out. Maybe this product works for others, but not for me. On the bright side, my hair has been growing a bit faster since I started using this shampoo, but it doesn't make up for having to wash my hair daily. I only use this shampoo about once a week now for the biotin benefits.

[This review was collected as part of a promotion.] I received this product in courtersy of Influenster for my honest review OGX Biotin & Collagen Shampoo has been a fantastic addition to my hair care routine, leaving my hair feeling thicker, fuller, and incredibly soft. The blend of biotin, collagen, and hydrolyzed wheat protein adds noticeable volume and shine without weighing my hair down, making it a go-to for achieving healthy, lustrous locks.