Amatora QUO Hair Bath is the Japanese shampoo our clients ask about most, and our best-selling shampoo online. “Hair Bath” is simply the Japanese salon word for shampoo. This one is made for color-treated hair: it cleanses the scalp gently, and over a few weeks it leaves hair softer, shinier and easier to manage. Here is what is in it, who it suits, and how to get the most out of a bottle.
What it is
QUO Hair Bath is the shampoo in Amatora’s QUO range, a Japanese salon line built to care for hair that has been colored or chemically treated. It is silicone-free and paraben-free, so it does not coat the hair to fake smoothness. Instead it relies on keratin, amino acids and plant oils. It comes in a 375 ml (12.6 fl oz) bottle and costs $58.
Key ingredients, in plain terms
- Hematin and humus extract (a source of fulvic acid): the signature pair in every QUO product, used to condition and smooth color-treated hair.
- Keratin and apple amino acids: the cleansers are built on amino acids and keratin rather than harsh detergents, which is why hair feels soft rather than squeaky after washing.
- Squalane and jojoba seed oil: light oils for moisture and manageability without a heavy feel.
- Herbal extracts: arnica, chamomile, calendula, sage, mallow and horsetail, with a fresh bergamot, lemongrass and lime scent.
It is free of sodium lauryl sulfate and sodium laureth sulfate. The full ingredient list is on the product page.
Who it is for
- Color-treated, highlighted or balayage hair you want to stay vibrant for longer
- Hair that feels dry, rough or brittle after bleach, perms or straightening
- Mature hair that has lost shine and softness
- Anyone who wants a silicone-free shampoo that still leaves hair smooth
If your scalp is very oily or flaky, start with a scalp-specific shampoo instead and use QUO on your lengths, or ask us what fits.
How to use it: double shampoo
This is the step most people skip, and it makes the biggest difference.
- Wet your hair thoroughly with warm water.
- Massage a small amount into your scalp, work it through your hair, and rinse. This first wash lifts oil and styling product.
- Apply a second time, massage again, and leave it on for 2 to 3 minutes before rinsing. The second wash is the one that does the work.
Because the double wash uses more product, a smaller amount each time goes further than one large pump.
Build the routine around it
QUO is designed to work as a set. Follow the Hair Bath with QUO KitomasQ ($50) after every wash, add QUO ColamasQ ($55) once or twice a week if your hair is badly damaged, and finish with the OQ Leave-In Treatment Mousse ($52) on damp hair. Our guide to which Amatora QUO you need explains each one and the order to use them in.
QUO Hair Bath FAQ
Is it safe for color-treated hair?
Yes. It is made for color-treated hair, and we recommend it after a color service to help protect hair from damage and breakage.
Is it silicone-free?
Yes, and paraben-free. It is also free of sodium lauryl and laureth sulfate.
Can men use it?
Yes. Nothing in it is gender-specific, and it suits anyone whose hair is colored, dry or damaged.
Should I use it before or after coloring?
After. The QUO range is built for hair that has just been processed, so start it the week of your color appointment.
Where to buy it
We use Amatora on clients at our Irvine salon and ship it across the U.S. One bottle is over our $40 threshold, so it ships free on its own. Shop Amatora QUO Hair Bath, or see the full Amatora collection.