Medium Shampoo - Hydrating Shampoo with Coconut Oil, Babassu, Kumquat Extract and Keratin - Strengthens, Nourishes and Adds Shine - Paraben, Phthalate and Sulfate Free Hair Care Products (10 Oz)

I bought the OUAI Medium Shampoo Refill because I needed something gentle enough for color-treated and keratin-treated hair, and it has worked really well for me. It cleans thoroughly without stripping, and leaves my hair feeling soft, smooth, and healthy. The formula has just the right balance—rich enough to nourish my hair, but not heavy or greasy. The scent is light, clean, and really pleasant, and it pairs perfectly with the matching conditioner. One of my favorite things about this refill is how cost-effective it is. You get a much larger amount for the price, and it’s more eco-friendly since it uses far less plastic than buying multiple bottles. If there’s a minor downside, it’s that using too much can feel a little rich, so a smaller amount works best—especially if you have finer hair. But overall, this shampoo has been a great option for maintaining both my color and keratin treatment. Overall: High-quality shampoo, gentle on treated hair, great scent, and a smart buy in the larger refill size. I’ll definitely keep repurchasing.

I’ve been using OUAI Medium Shampoo, and it’s officially a staple in my shower. This shampoo is the perfect balance—it cleans deeply without stripping, and leaves my hair feeling soft, light, and fresh instead of dry or heavy. The scent is clean, luxe, and salon-level good without being overpowering. It makes washing my hair feel like a mini self-care moment rather than a chore. A little goes a long way so start small and work your way up as needed. Final verdict: If you want healthy-looking, bouncy, clean hair that still feels moisturized and touchable, this shampoo delivers. Worth every drop.

Great shampoo. Love the added biotin and collagen. Makes my hair look so shiney and silky. Also my hair smells beautiful.

Have have lots of haie but it's very fine. I was looking for a shampoo thst wouldn't weigh it down and this was recommended on every Google search I looked at. I really like it but the scent is very strong. It just smells super clean, less like a perfume scent feom other shampoos. But my hair isn't weighed down, it has volume to it and I noticed a difference after just 1 wash. I plan to keep using it and will buy it again.

Still trying it out. Not sure. Smell is very nice.

I love these bags for our dispensers it's so much easier to refill and I'm getting more product out. I also really like the product. I can tell my hair feels and looks healthier and fuller after using this product. My husband even loves to use it on his hair. Luckily we have the same hair type.

This shampoo removes buildup, provides shine and the scent is ok. But it seems a bit too astringent and leaves my hair a bit dryer geeling than I'd like.

Very nice shampoo and conditioner. My hair feels clean, hydrated and healthy.