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A white OUAI Fine Hair Conditioner refill pouch stands upright on a warm cream studio surface. Text: “OUAI”, “FINE HAIR”, “CHEVEUX FINS”, “CONDITIONER”, “REVITALISANT”, “32 fl oz / 946 ml”.
OUAI shampoo bottle with ingredient information on a white background
Ouai fine hair shampoo bottle styled with a pink rose, lemon slices, and jasmine flowers on a white background, with text reading 'MERCER STREET FRAGRANCE Notes of: ITALIAN LEMON, TURKISH ROSE, IRIS & WHITE MUSK'.
A white OUAI Fine Hair Conditioner refill pouch stands upright on a warm cream studio surface. Text: “OUAI”, “FINE HAIR”, “CHEVEUX FINS”, “CONDITIONER”, “REVITALISANT”, “32 fl oz / 946 ml”.
OUAI shampoo bottle with ingredient information on a white background
Ouai fine hair shampoo bottle styled with a pink rose, lemon slices, and jasmine flowers on a white background, with text reading 'MERCER STREET FRAGRANCE Notes of: ITALIAN LEMON, TURKISH ROSE, IRIS & WHITE MUSK'.

Fine Hair Shampoo - Refill

For fine hair, this color-safe, refill size thickening shampoo adds volume & bounce and smells as good as it looks.

Size:
FULL SIZE (10 OZ) TRAVEL (3 OZ) JUMBO (16 OZ) REFILL (32 OZ)
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This color-safe shampoo breathes life into fine, flat hair with strengthening keratin, biotin, and nourishing chia seed oil. Hair is left clean, bouncy, and full of volume, so you can finally be fine with being fine. Follow with Fine Conditioner for best results.

Keep it on deck 24/7 with this Refill Pouch, made with 60% less plastic than bottles. Because climate change is real.

How to use

Thoroughly wet hair from roots to ends.

Lather a quarter-size amount in your hands, then work into roots and anywhere hair touches the scalp.

Rinse shampoo. Make sure to squeeze out excess moisture before pairing with Fine Conditioner.

ingredients

Water / Aqua / Eau, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl Cocoyl Taurate, Peg-200 Hydrogenated Glyceryl Palmate, Cocamide Mipa, Fragrance / Parfum, , Panthenol, Cocoglucosides Hydroxypropyltrimonium Chloride, Hydrolyzed Keratin, Biotin, Salvia Hispanica Seed Oil, Cetrimonium Chloride (Anti-Static Agent/Agent Antistatique), Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Glycerin, Sodium Lauroyl Glycinate, Peg-150 Distearate, Propoxytetramethyl Piperidinyl Dimethicone, Trideceth-6, C11-15 Pareth-7, Peg-7 Glyceryl Cocoate, Sodium Chloride, Polyquaternium-7, Disodium Edta, Citric Acid, Sodium Hydroxide, Tetrasodium Edta, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol, Benzyl Alcohol, Acetic Acid, Sodium Acetate, Benzyl Salicylate, Limonene, Hexyl Cinnamal

As always, all of our products are:
Paraben-Free, Cruelty-Free, Gluten-Free, Phthalate-Free, SLS and SLES-Free

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Fine Hair Shampoo - Refill

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THE SCENT:
MERCER STREET

TOP NOTES

Italian lemon, orange, peony, iris, lily

MIDDLE NOTES

Magnolia, jasmine, rose damask

BASE NOTES

Musk, orris

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Overall rating: 4.5914636 / 5 from 1148 reviews.

AI Generated Review Summary

Fine Hair Shampoo Refill Pouches are praised for their eco-friendly refill design, which uses significantly less plastic. Customers love the shampoo's ability to clean and strengthen fine hair, providing volume and a healthy, shiny look. The pleasant fragrance and clean, fresh scalp sensation are also highlighted.

Summary topics

  • Eco-friendly Refills: 3%
  • Hair Softness and Bounce: 42%
  • Scalp Cleanliness: 3%
  • Fragrance Satisfaction: 39%
  • Hair Volume: 4%

Review topics: [size, volume, fragrance, problem, results, improvement, weight, fit, quality, feels, ingredients, smells, texture, husband, value, service, packaging, look, amount, price, bottle, hair, scalp, works, body, balance, formula, shipping, residue, compliments].

Review highlights

  • "Nice shampoo lathers well had a nice smell and leaves my hair feeling very clean ." — Missy S.
  • "My hair is soft, my scalp is not irritated and my hair smells fantastic." — JAMIE H.
  • "I love the fine hair shampoo - since I started using it my hair looks and feels fuller, is healthier and smells great!" — Tiffany C.

Reviews

Wish I had started this earlier

"As a woman in the middle of perimenopause my hair has changed. I have long, straight hair and hormone changes have left me with some hair loss and dryness. This stuff has transformed my hair within a few weeks. I have never had a shampoo and conditioner combo that I love, I find myself always looking for what is popular or what my salon uses. This will be my go to from now on!"

— Kimberly S. (5/5)

"As someone with a lot of thin, straight hair, I’ve gotta say the Ouai fine hair shampoo has been the best shampoo to grace my scalp! I use this one most days, and every few days will switch it up and use the Ouai detox shampoo. Was excited to see they came out with a jumbo pump!"

— Allison (5/5)

Leaves my hair brittle

"I really loved the smell and I wanted to like this shampoo but unfortunately, even combined with conditioner (and sometimes hair mask), this shampoo leaves my hair brittle compared to other products I have used"

— Christina L. (3/5)

Lasts 2-3 days to keep roots lively

"I use this with the condition. I do find it slightly drying but this leads to more lift and bounce Love the scent and lather. I’m slightly sensitive to the formula which can make my scalp react but worth it for the lift."

— Beth P. (4/5)

Best shampoo I’ve tried for thin, fine hair

"This is hands-down the best shampoo and conditioner I’ve tried for thin, fine hair. if you’ve tried so many different shampoos like me and never found one that washes your hair effectively without stripping it completely and making it get greasy again quickly, but also giving it volume and making it feel soft, try this shampoo and conditioner, you won’t regret it! I have also tried the hair mask, body scrub, and leave in conditioner and love those as well!"

— Jenna B. (5/5)

Love the smell. Love the

"Love the smell. Love the quality. Love everything about it!!"

— Sheila C. (5/5)

Fine Hair Shampoo review

"Great product! I will keep using it for a long time. I've also used the Ouai Hair Thickening spray and like it but this is easier."

— Jennifer F. (5/5)

"The shampoo is a delight to use. Fragrance and hair care is wonderful"

— Joni (5/5)

It was hard on my hair and the scent is very strong

"The product was hard on my hair and the scent is very strong"

— Natalie J. (1/5)

Great shampoo!

"Love this shampoo, leaves your hair clean & fresh, without weighing it down as some products do."

— Leslie B. (5/5)

Q&A

what fragrance is the fine hair shampoo?
Hi Carol! Our Fine Hair Shampoo has the Mercer Street scent which is a sheer and airy floral/musky fragrance with notes of Italian Lemon, Turkish Rose, Jasmine Sambac, Iris, Lilly, and White Musk.
Is it safe to use for color treated hair?
Hi Lani! Hope you're well! All our shampoos and conditioners are sulfate free, so they’re safe to use on color treated hair. The PH of our Shampoos range from 5 to 6 and Conditioners range from 4 to 5. These ranges are at the optimal level for hair and scalp health. Hope this helps!
Is the packaging recyclable?
Hi Kay! You can recycle part of your refill pouch. The caps are recyclable, but the pouch had to be made with a type of light plastic that is still OUAI more sustainable than a liter bottle. This part is not recyclable. The plastic these use are 60% less plastic than rigid plastic bottles and require 50% less energy to produce. These pouches also generate less CO3 emissions during production and shipping. They also weigh less than a typical plastic bottle, which helps reduce the carbon footprint in regards to transport and manufacturing.
Do you get more in the pouch than the bottle?? It’s double the price. Thanks
Hello Nicholas! Yes, definitely! Our bottled Fine Hair Shampoo bottled contains 10 fl oz / 300ml of shampoo while the refill pouch contains 32 fl oz/ 946ml. It's triple the amount so you can save more if you're going to refill your original bottle.