OUAI Thick Shampoo Refill - Moisturizing Shampoo with Keratin, Marshmallow Root, Shea Butter & Avocado Oil for Thick Hair - Strengthens & Hydrates - Paraben, Phthalate, Sulfate Free Shampoo (32 Fl Oz)

I love how healthy and strong my hair feels while using OUAI! It leaves my hair soft, light, and refreshed without weighing it down. The scent is absolutely amazing—luxurious but not overpowering. Plus, I really appreciate that they offer refill options, which is both convenient and eco-friendly.The only downside is the price—it’s definitely on the expensive side. However, given the quality and results, I think it’s worth it! If you're looking for a high-end shampoo that truly delivers, this one is a great choice.

This shampoo is unlike any other I’ve used. I am a guy with fine blond hair that doesn’t do well with thick, heavy, goopy standard shampoos. They weigh down my hair and it ends up looking all flat and thin. I have a full head of hair. It just lays super flat, and cheapo conditioners dry it out and trash it with too much alcohol in them. This shampoo gives my fine hair volume without trashing it with a bunch of alcohol and harsh ingredients. It’s gentle. It smells nice, too, but now that I have been using it regularly, I unfortunately have become used to the fragrance and don’t notice it as readily. At first, I was a bit disappointed with the size of the bottle. It seemed small and expensive. It is definitely expensive, but it’s just high quality. It also doesn’t take much to get your hair clean, and for a guy, I have medium-length hair. I’m conservative with it, and together with the Hair Gloss for fine hair, it tames the daily greasies without frizzing out my hair.

Great shampoo ,perfect for blond Scandinavian fine hair ,nice fresh scent ,NOT overpowering though A+++++++++++

So far so good! Great product so far within a week of using it. I’m very oily hair and this keeps its pretty light weight and soft after. I use it with a scalp massager for a deeper cleanse. Only reason I give it 4 stars is the rose smell (reminds me of old lady perfume). However, it smells nice once it’s dry and is very faint.

I feel like I've tried all of the fine hair shampoos out there, and they either leave my hair flat or they seem to deposit a lot of product that leaves it feeling clumpy or dry after a couple of days. Most recently I was alternating between R&CO's Television and Dallas products to try to keep my hair looking good. I don't have to do that anymore!The shampoo cleans effectively with very little product. I use about a nickel size amount, which is far less than other brands I've tried. But what's better is it leaves my hair looking really silky and healthy, with a surprising amount of volume. It's not dried out or dull after a few days. I'm going to add the conditioner to my routine since this shampoo is doing so well.For reference I have fine, straight, naturally dark blonde hair. I do highlight it, but my highlights are about 6 months old right now, so my hair isn't dried out from the processing. I'm curious how this shampoo will do when I highlight my hair again, but I have high hopes.

This smells so nice and makes your hair smell good throughout the day. It's more pricey than what I typically pay for shampoo and conditioner but the refill sizes are a good value. Gives your hair a nice clean feeling with softness. Doesn't dry out your scalp.

Recently tried their detox shampoo which I loved, so I wanted to give this a try for regular shampoo. Before purchasing I read the more recent reviews which were all positive. Well I should've kept reading! The first time I used this I just used for spot shampooing my face frame pieces. My husband immediately commented on the scent and how strong it was. He said it hit the back of his throat and he could taste it, that's how strong the scent is. Keep in mind, I didn't use alot the first time bc I didn't shampoo my entire head,just the front. Anyways, I went to brush my hair after and it was so tangled and gnarly. I thought weird maybe it's just from the summer, the pool, working out etc. A couple days later I washed my entire head with it. Again my hair was so tangled and dry feeling even when it was wet. When I was finally able to comb my hair I looked down at my vanity and had a good amount of breakage. Next I blow dried my hair. It was a frizzy mess and the ends were extremely dry and coarse feeling to the point where I sprayed leave in conditioner on them. After this fiasco, I thought to myself I can't be the only one, so I went back to the reviews and selected the 1 star reviews. These are spot on! Everything everyone said I experienced with this:the dryness, breakage, inability to comb. People also started talking about hair loss. Which honestly got me so nervous I washed my hair again with a more hydrating shampoo this time and deep conditioned. Now my hair feels alot better. I can't stress enough to steer clear of this stuff. This stuff doesn't even deserve 1 star and should be taken off the market.

This is by far the best shampoo I have ever used. I learned about it on the youtube channel Unblahyourself.