OUAI Medium Hair Shampoo - Mercer Street Scented Hydrating Wash for Mindful Nightly Hair Rituals
OUAI Medium Hair Shampoo - Mercer Street Scented Hydrating Wash for Mindful Nightly Hair Rituals
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Why you'll love it
- Sulfate, paraben, and phthalate-free formula protects color and keratin treatments
- One product cleanses, hydrates, fights frizz, and adds shine — simplifying the routine
- Refillable size option supports sustainability and long-term value
- Multi-texture versatility works for straight, wavy, curly, and coily hair
- Signature Mercer Street scent (Italian lemon, jasmine, white musk) elevates the shower into a sensory experience
- Cruelty-free and gluten-free credentials align with ethical beauty values
Perfect for
- Daily hydrating wash for medium-textured hair that is neither fine nor thick
- Color-treated hair maintenance to prevent fading and dryness
- Repair routine for dry, damaged strands with split ends and breakage
- Frizz control and shine revival across straight, wavy, curly, and coily textures
- Travel-sized haircare for gym bags and short trips
Product Information
For Hair That Swings Both OUAI's: Not fine, not thick? This hydrating shampoo was made for strands in between. It cleanses, fights frizz, nourishes and revives shine for straight, wavy, curly and coily hair types.
Stronger Strands, Less Breakage Babassu oil hydrates hair and scalp. Coconut oil seals split ends and reduces breakage on dry, damaged strands. Kumquat extract revives shine. Keratin smooths frizz and detangles. Apply to roots and work through to ends.
A Clean Formula You Can Feel Good About: Sulfate, paraben and phthalate free. Safe for color-treated, keratin-treated and chemically-processed hair. Cruelty free and gluten free. Clean ingredients, no compromises.
Pair It For Best Results: Follow with OUAI Medium Conditioner for hydrated, smooth, frizz-free hair. Layer in OUAI Hair Oil for added shine and frizz control. Get on your OUAI to a happy medium with the full routine.
OUAI Hair, Body & Fragrance: This hydrating, frizz-fighting shampoo is made to transport you wherever you go, with a Mercer Street scent featuring notes of Italian lemon, jasmine, and white musk.
Items Details
Features & Specs
Item Form: Liquid
Hair Type: Normal
Scent Name: Mercer Street
Other Special Features of the Product: Scented
Product Benefits: Nourishing
Suitable Hair Color: All Hair Colors
Frequently Asked Questions
Does the Mercer Street scent actually help me unwind after a long day?
Yes. The signature Mercer Street fragrance blends Italian lemon for a fresh opening note, calming jasmine at the heart, and soft white musk as the dry down, transforming your shower into a sensory wind-down ritual that supports mindfulness and stress relief.
Can I use this shampoo as part of a nightly self care routine without drying out my hair?
Absolutely. The formula is sulfate free and packed with hydrating coconut oil, babassu oil, and keratin, making it gentle enough for daily use while still cleansing, even on color treated and chemically processed hair.
Will the jasmine and white musk notes be too strong for a calming bath time experience?
Not at all. The fragrance is layered to feel soft and enveloping rather than overwhelming. Italian lemon brightens the top, jasmine adds a soothing floral middle, and white musk grounds everything in a clean, relaxing finish.
Is this shampoo safe to use on my scalp if I have a dry scalp from stress or weather changes?
Yes. The blend of coconut oil, babassu oil, and kumquat extract is designed to nourish a dry, sensitive scalp while gently cleansing. It is sulfate, paraben, and phthalate free, so it will not strip your scalp's natural moisture barrier.
Does the routine of using this shampoo actually make a difference in how my hair feels day to day?
Customers consistently report softer, shinier, more manageable hair with less frizz and breakage. The hydrating blend strengthens strands over time, so the daily ritual builds healthier hair with each wash.
Is this a good shampoo to elevate my at home spa night?
Yes. The luxurious Mercer Street scent, rich lather, and clean ingredient list make it a natural centerpiece for a self care Sunday, bath time ritual, or wind down evening after a stressful week.
Will using this regularly help me feel like I am investing in my own wellbeing?
That is exactly the experience it was designed to deliver. A small daily ritual of massaging in a beautifully scented, clean formula becomes a quiet act of self care that signals to yourself that your wellbeing matters.
Can I use this shampoo during meditation or breathwork style morning routines?
Yes. Many users enjoy the grounding white musk base note as a sensory anchor during their morning rituals. The gentle cleanse and uplifting lemon top note pair well with an intentional start to the day.
Is this shampoo better for relaxation than my current drugstore brand?
The Mercer Street fragrance, clean ingredient list, and rich hydrating lather create a noticeably more spa like experience than most drugstore shampoos. If scent and ritual matter to you, the difference is immediate.
Will the scent linger in my hair throughout the day without being overpowering in close quarters?
Yes. You will notice a soft, clean trace of the scent in your hair throughout the day. It is designed to be present without being heavy, so it will not overwhelm coworkers, family, or shared spaces.
Is this shampoo better for my hair health than a clarifying or medicated shampoo?
Clarifying and medicated shampoos are designed for occasional deep cleansing and can be harsh on color treated hair. This formula is gentle enough for daily use, hydrates while it cleanses, and protects color and keratin treatments.
How does OUAI Medium Hair Shampoo compare to other wellness focused haircare brands?
Most wellness haircare focuses on ingredient lists alone. OUAI combines a clean, sulfate free formula with a true signature scent experience and visible performance benefits like frizz control, shine, and color protection.
Can I replace my separate hydrating mask and scalp treatment with this one product?
While a deep mask has its place in a weekly routine, this shampoo is formulated to cleanse, hydrate, fight frizz, and add shine in a single step, simplifying your routine without sacrificing results.
Is a sulfate free shampoo really worth it if I am just trying to relax and enjoy my shower?
Yes. Sulfates can leave hair and scalp feeling stripped, tight, and dry, which works against a calming self care moment. A sulfate free formula cleanses gently so your hair feels soft and your scalp feels comfortable.
Will this shampoo interfere with my meditation or yoga routine by leaving a residue?
No. The formula rinses cleanly thanks to its gentle, sulfate free surfactant system. There is no waxy or heavy buildup, so your hair feels light and clean whether you are on the mat or off.
I am sensitive to fragrance. Is the Mercer Street scent going to be too much for me?
The scent is signature but not aggressive. If you are highly fragrance sensitive, we recommend sampling the scent in store if possible or starting with the travel size to test your comfort level before committing to a full size bottle.
Will this shampoo feel like a treat or just another product in my routine?
Most users describe it as a small daily luxury. The scent, lather, and visible results make each wash feel intentional and elevated rather than routine.
I already have a wellness routine. Is haircare really part of wellbeing?
Absolutely. Hair health, scalp comfort, and the sensory experience of a daily ritual all contribute to how cared for you feel. Adding a quality shampoo to your routine is a small but meaningful upgrade to your overall wellbeing.
How do I use OUAI Medium Hair Shampoo for the best results?
Wet hair thoroughly, massage a small amount of shampoo into the scalp and through the lengths, then rinse. For best results, follow with the matching OUAI Medium Hair Conditioner. Use daily or as often as you wash your hair.
How much shampoo should I use per wash?
A quarter sized amount is usually enough for medium length hair. Adjust up for longer or thicker hair and down for shorter or finer textures. The formula is concentrated, so a little goes a long way.
Can I use this shampoo every day?
Yes. The sulfate free formula is gentle enough for daily use, even on color treated and chemically processed hair. The hydrating blend of coconut oil, babassu oil, and keratin cleanses without stripping.
Is this shampoo safe for color treated hair?
Yes. The formula is specifically designed to be safe for color treated, keratin treated, and chemically processed hair. It is sulfate free, paraben free, and phthalate free, so it will not strip color or shorten the life of your treatment.
Is this shampoo safe for keratin treated or chemically processed hair?
Yes. The gentle, sulfate free formula is safe for keratin smoothing treatments, perms, relaxers, and other chemical services. It will not strip the treatment or cause premature fading.
What comes in the box when I order the full size shampoo?
You will receive one 10 oz OUAI Medium Hair Shampoo bottle with the signature Mercer Street scent. The bottle has a flip top cap and is ready to use. No additional accessories are required.
Is this shampoo safe for my scalp?
Yes. The formula is sulfate free and designed to be gentle on the scalp, with hydrating coconut oil, babassu oil, and kumquat extract to nourish rather than strip. It is appropriate for normal to dry scalps.
Is this shampoo cruelty free and vegan?
OUAI is a cruelty free brand and does not test on animals. The formula is also gluten free. For the most current vegan certification status of specific products, please check the product packaging or the brand's official site.
What is the difference between shampoo and co wash for medium hair?
A traditional shampoo like this one uses gentle surfactants to lift oil, product buildup, and impurities from the scalp and hair. A co wash is a cleansing conditioner that does not contain traditional surfactants and is used as an alternative between washes. This shampoo is designed for regular cleansing, while a co wash would be a supplemental or alternative step.
