COW BRAND
(Restocking) COW BRAND MUTENKA Smooth Care Treatment, 180g
(Restocking) COW BRAND MUTENKA Smooth Care Treatment, 180g
@cosme rating: 5.0/7.0
Reduces dryness and makes hair smooth to the touch
✓ 100% authentic
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
Couldn't load pickup availability

What it is
Reduces dryness and leaves hair smooth and silky to the touch. Contains naturally derived treatment and conditioning ingredients. Non-silicone formula. Contains moisturizing ingredients derived from the skin. ceramide, hyaluronic acid, and amino acid. glycine.
Ingredients
Water, hydrogenated rapeseed oil alcohol, isopentyldiol, behenamidopropyl dimethylamine, lactic acid, ceramide NG, sodium hyaluronate, glycine, arginine, sodium dilauramidoglutamide lysine, camellia seed oil, sunflower seed oil, squalane, macadamia integrifolia seed oil, cetyl ethylhexanoate, isononyl isononanoate, myristyl alcohol, dextrin palmitate, citric acid, caprylyl glycol
How to use
After shampooing, lightly squeeze out excess water, take an appropriate amount in your hand, apply it to your entire hair, and rinse. Rinse immediately for sufficient results.
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.
I bought the COW Brand Shampoo SB refill (360ml). It's a mild, additive-free formula for delicate skin, leaving your scalp feeling refreshed and your hair feeling silky smooth. It's a mildly acidic shampoo formulated with naturally derived amino acid cleansing ingredients for your scalp. It contains naturally derived conditioning ingredients, a silicone-free formula, and skin-derived moisturizing ingredients: ceramide, hyaluronic acid, and amino acids (glycine). [Usage of shampoo alone] It produces a fine, fluffy lather. It's not dense. I don't think it lathers particularly well. It doesn't leave a rough feeling after rinsing, but it's not slippery or soft. It feels smooth and manageable after blow-drying. It doesn't leave hair in the hair the next morning, and it's a little dry. I think it leaves my scalp feeling refreshed. It's fragrance-free, but it has a refreshing scent. I'd like to try the moisturizing version.
It's fragrance-free, gentle on the skin, yet smooth! Perfect for morning sickness! I started using this shampoo after my head got a rash when I was using another shampoo. I used a different shampoo for a while after that, but then I got pregnant and started having morning sickness. I can't stand scented shampoos, and I feel nauseous every day while bathing, so I asked my husband to buy me this. As a result, since it's fragrance-free, it didn't make me feel nauseous, and it was really good! I recommend the treatment, as it leaves my hair feeling smooth, rivaling even the best shampoos. There's less treatment than shampoo, so be careful when using them together.
I bought this product because it was a hot topic on social media! I have virgin hair and an oily scalp. It was said to leave a smooth finish, but I felt it was a little lacking for me.
It's easy to use even in the dry winter!
It's easy to use even in the dry winter!