This is one of the few shampoos that actually gives my straight, thinner hair any volume!The plus is you don't need that much, as it's concentrated. The smell is nice and it leaves my hair soft and voluminous! If you're having trouble with other brands that claim to be volumizing, give this shampoo and conditioner a go!

Smells great. It leaves my hair feeling soft and feeling clean. Didnt really feel a big difference with my hairs fullness but it did give my hair volume. Doesnt do much for dandruff, so I wouldnt recommend this for this with dandruff, but if you dont suffer from it I would totally recommend.

[This review was collected as part of a promotion.] This shampoo is nice and effective. I like the scent of the shapooo and the packaging is cute and dark purple. The shampoo pumps out a good amount ( as much as you neeed) it lathers on your hand too. The value of the money is good and affordable

[This review was collected as part of a promotion.] The Biotin & Collagen Shampoo is exactly what my color-treated dry hair needed. The scent is light and not overpowering compared to other drug store brands. My hair feels soft and nourished after use along with the Biotin & Collagen Conditioner. I was shocked how my hair wasn't tangled after washing it and I attribute it to the new shampoo / conditioner combo. I am a big fan and recommend.

This conditioner is great! Whenever my hair is feeling weak (or I’m losing more hair than usual) I grab this conditioner and use it. It makes my hair feel stronger and I really love that! I also do notice a difference with my dry scalp and hair loss when I use this + the matching shampoo. Love that duo!

[This review was collected as part of a promotion.] A reliable shampoo for increasing volume to my hair! It’s perfect that the formula is made for 72 hours because I usually wash my hair about that time routinely. It doesn’t cause greasiness and didn’t harm my bayalage too severely.

Oh OXG what have you done to my favourite shampoo? I have been buying the purple colour shampoo for years and I love it. It makes my hair full and soft. Used it all up so bought a new bottle a couple of weeks ago. Couldn't understand why it was a different colour but assumed it was just as good. NO it isn't. Makes my fine hair flat and heavy and also didn't lather like the old one did. Please change it back and why mess with a brilliant product. I will not be using the new formula so unless you bring it back you will have lost my custom and, reading other reviews, some others too!!!

I had a beautiful baby boy several month ago and since I stoped my prenatal vitamins, my hair has been a mess. This shampoo nourishes my hair and strengthening them, while they are recovering from hormonal changes. Best shampoo for the price. Another positive note, it smells amazing.

Have used this for years and loved it. Was able to wash my hair 3 times a week and it looked good every day. The new and improved is definitely not an improvement. It leaves my hair dry and frizzy the first day and flat and greasy the second. I don’t even understand how that’s possible! Guess it’s time to find another brand.

I bought this originally for my daughters' hair. It smells really nice and does seem to reduce the frizz in my eldest. She has coarse wavy to curly hair! I love that it doesnt have parabens and will probably start using this instead of redken for my own hair!