Magical is the first word that comes to mind as I describe this product! Since my normal keratin shampoo/conditioner was out of stock and upon reading all the amazing reviews, I decided to give Pure Biology a try. In order to tame my very fine, damaged, and extremely frizzy hair, I get keratin treatments every 3 months. Once the keratin treatment starts to fall out, my hair is so frizzy and damaged looking that I can’t wear it down at all until my next treatment. Due to my busy schedule and my normal hairdresser being on vacation, I was three weeks past due for my next keratin treatment and my hair had morphed back into a dull, frizzy, tangle monster full of flyaways and breakage. I have been getting by these past few weeks by covering my hair with hats or throwing up in a ponytail.The first thing that hit me when my order of Pure Biology shampoo and conditioner arrived was the clean, crisp, and tantalizing smell of essential oils. I could literally smell it from the amazon box it arrived in. Because the shampoo is much thinner than my normal shampoo, I was a bit skeptical at how well it would work, but I lathered up and let it sit on my head a couple minutes before rinsing out and followed with the Pure Biology conditioner.I was absolutely amazed at what a difference this shampoo and conditioner made after just the first use! My hair immediately had a completely different feel, from fine and frizzy to healthy and strong. Keeping in mind that I am several weeks past due on next keratin treatment/trim, I was amazed to see my split ends and flyaways were dramatically decreased. Upon second use, I was actually able to get my hair straightened well enough to wear it down even though my keratin treatment has fallen out- something that has never happened before. My very fine and frizzy hair seems thicker after only two uses and started to mimic the effect that a full expensive keratin treatment would have. With such dramatic results after only two uses, I’m starting to wonder if these expensive and time consuming keratin treatments will even be necessary after consistent and continued use. This product is absolutely amazing and I highly recommend to anyone who has damaged, frizzy, and/or thinning hair. I have already recommended Pure Biology to all my friends and family. Read more

I’ve been using this for almost a whole year now. I suddenly lost what felt like all my hair. I used to have very thick, strong hair & then thinned out to very little, as you can see in the picture. I started losing hair in clumps. The picture with the most hair is how much I was losing every day. Then my sister got me this shampoo. It’s got a mild scent & it doesn’t lather a lot - a testament to me that it doesn’t have the fillers of regular shampoo. I didn’t have to use much, since I had hardly any hair, but by the 3rd use I saw a noticeable decrees in my hair loss in the shower. And then in my brush & when I’d run my fingers through my hair. After about a month I could see all the little fly-aways starting to show up from all the new hair starting to grow. Now, 11 mos later, you can see all the new hair & how long it’s grown. I only use it twice a week & again I don’t have to use quite as much as regular shampoo. But I scrub it in good against my scalp & let it sit for a couple mins. My new hair coming in is once again thick & strong. The picture with less hair is how much I lose in the shower now. I also stopped using conditioner when I lost all my hair & this shampoo gives me such soft, lustrous hair that I still don’t. I bought their conditioner & it’s great. I just don’t need it anymore. I love this shampoo so much, it’s worth every penny. I watch for it to go on sale & snatch it when it does. I’m only on my second, maybe third, bottle for the 11 mos I’ve been using it. If you need hair re-growth, this is the real thing. Just as a heads up (no pun intended), you might look like Einstein for a little bit since all the new hairs are starting to grow & give you a head of fly-aways until they are long enough to tame. Read more

I got this to try since I had a spot on the back of my head that was balding, started small and after a few years it was the size of a 50 cent piece. Nothing seemed to work, hair was thinning and no products seemed to make a difference until...... I read some articles, ordered this and by the end of the first bottle my hair gal was surprised that the spot was getting smaller, not it is completely gone and can't even tell it was there other then the spot having shorter hair then the rest but it is growing fast and the rest of my hair is also getting thicker again and fuller again. Read more

Started losing hair after having covid 2 years ago and had to chop off about 14 inches. My hair was just above shoulder length and super thin when I started using this shampoo. Within 1 year of use (along with 2-3x a week rosemary oil treatments) my hair grew to the middle of my back and was much thicker than it had ever been. I was super hesitant to buy hair products online, but this shampoo was a game changer. I am not losing nearly as much hair as I use to and it actually made my hair grow. It smells really good but doesn't make your hair smell good, which is fine. Highly recommend this product. Read more

Works great and better than dandruff shampoo Read more

Didn’t notice a different. Hair was a bit greasier Read more