COSME DECORTE
COSME DECORTE AQ Repair Smooth Treatment Conditioner, 600g
COSME DECORTE AQ Repair Smooth Treatment Conditioner, 600g
@cosme rating: 5.5/7.0
A luxurious Japanese conditioner that leaves hair silky, smooth, and visibly refined—your daily AQ ritual for polished, frizz-free shine.
✓ 100% authentic
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
COSME DECORTE AQ Repair Smooth Treatment Conditioner feels like the kind of step you look forward to at the end of a long day. The creamy texture coats each strand without heaviness, making hair feel instantly softer when you rinse. Used after shampoo, it helps reduce roughness, smooth lifted cuticles, and bring back that glossy, well-kept finish you see in Japanese salon hair. Over time, the surface looks more even, less frizzy, and easier to style—especially on mornings when you want your hair to behave with minimal effort.
Ingredients
(1) Botanical oils: boost softness and slip
(2) Conditioning agents: smooth hair surface
(3) Moisturizing extracts: support hydrated feel
(4) Light-reflecting elements: enhance shine
How to use
After shampooing, apply COSME DECORTE AQ Repair Smooth Treatment Conditioner to the mid-lengths and ends. Comb through with fingers, leave for a short moment, then rinse thoroughly. For extra smoothness, focus on the driest areas and let it sit slightly longer before rinsing.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. We only buy from official retailers and directly from the brands here in Japan. Never resellers, never grey market stock.
We are beauty lovers too, so we know the worry, especially with something you are putting on your face. Authenticity is 100% guaranteed by us.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.
The hair serum was so good that I also purchased the treatment. The scent is soothing, and it leaves my hair soft and shiny. Those with soft hair may lose some volume, but for me, this treatment is a blessing.
I've always loved AQ's scents and have used their skincare and perfume. After trying the sample, I really wanted my hair to smell the same, so I bought this! I originally bought my haircare products at the salon, and compared to that, I felt that this product lacked moisturizing power. However, using it together with the serum made my hair feel moisturized and smooth. I absolutely love the scent, so I'll be buying it again!
I'd used the sample a few times and really liked it, but the price was a bit high, so I hesitated to buy the full product. However, I started to think that using a good shampoo every day would be more cost-effective than getting a treatment at the salon once a month, so I decided to buy the shampoo and treatment together. My hair is now smooth and manageable. My favorite AQ scent fills the bath and makes me feel happy. They also offer refills, which is great for the environment. I wish they would sell sample sizes for travel.
I use a different shampoo, but only use the hair serum and treatment. I was concerned about damaged and frizzy ends, but I noticed an immediate change after using this. The serum has a light texture and blends in easily, and when I followed it up with the treatment, the frizzy ends felt smooth and tame. It's not sticky, and my hair is soft and manageable. The scent is elegant, and I feel very satisfied with the hair care routine. I'd been using salon-exclusive hair care products until now, but I found this product to have a more noticeable immediate effect. Another great thing is that my hair stays manageable even after drying, making styling in the morning easier. I think it's especially suitable for those with damaged or frizzy hair. I'm honestly surprised I could achieve such results without relying on salon-exclusive products. It's a hair care product I plan to continue using.
The ultimate hair care product. I keep buying it. I can't use anything else. It leaves my hair smooth, soft, and manageable. The AQ fragrance is soothing. It lathers well, is stress-free, and easy to wash. It thoroughly removes dirt and eliminates scalp odor. I have thick bob hair, and I used three generous pumps daily, finishing the 500ml bottle in just under a month. I followed this with AQ Hair Serum and the same Repair Smooth Conditioner. This combination is probably the best. Using a good shampoo every day beats salon treatments. If you're investing in hair care, this shampoo is a must. It's definitely worth the price. That's how excellent AQ's hair care is. I massage my scalp with the ETVOS brush when shampooing. It's packed with beauty ingredients that nourish the scalp, helping to prevent gray hair. I haven't had any gray hairs yet, so I'll continue to use it. The bottle has the luxurious feel you expect from AQ, and it's uplifting. The scent is also soothing, making it a rewarding shampoo. Perfect for anti-aging hair and scalp.