[This review was collected as part of a promotion.] This shampoo was not bad. It's not my favorite but it's decent. It's smells clean and the bottle comes with a good amount for the price. I say it's not my favorite because it doesn't do much for my hair. My hair actually felt drier after use. It might be good for someone with oily hair.

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!!

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

[This review was collected as part of a promotion.] After my weight loss surgey, I needed a good shampoo & conditioner that would protect my hair from the excessive shedding that weight loss surgery patients go through. I washed & conditioned my hair once/week for a year with OGX biotin & collagen & my hair has grown SO much & gotten A LOT thicker, healthier & shinier than it's ever been (it now takes me about 2 1/2 hours to wash, blow dry & flat iron my hair due to the growth & thickness). I never once experienced shedding & have now told all of my weight loss surgery friends about this product!

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.] After almost 2 weeks of trying this ogx biotin and collagen shampoo, I can honestly say this stuff works! My hair isn't super thin, but I do have a lot of hair, and after even just the first use, I instantly felt like my hair was thicker and had more volume. It has a very pleasant coconut smell to it and suds up very nicely after the first shampoo wash! I would give this two thumbs up!

I have been using this shampoo for several years and it has been great for thickening my thinning hair. However, I have just had to buy a replacement bottle and used it this morning for the first time. The first thing I noticed was that the shampoo is now clear instead of a shade of purple, then that while it softens my hair it no longer seems to have the thickening effect. I was confused but when checking the bottle (which looks exactly the same as previous bottles) there is a very small addition which says ‘new improved formula’ and the word ‘thickening’ is no longer there. I don’t know why companies feel the need to tamper with winning formulae, but I am very disappointed that my favourite shampoo is no longer.

I bought the travel size bottles at first to use on a vacation and I absolutely fell in love with it!! I immediately bought full size when I got home. I have long curly dry hair and this was amazing. It left my hair soft and light. Most shampoos and conditioners weigh down my hair but this does not!! My hair is less frizzy and with way more volume!!

Not such a great experience. The ingredients are not natural and you can’t even see the back of the bottle. It clearly states on the back of the bottle “to create fuller looking, skinny hair.” It gives you the illusion of thick hair it can’t actually claim it will make your hair fuller because it can’t. It’s like a bad boyfriend, looks great at first but after investment a terrible terrible idea later.

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.