Amino Master
Amino Master Deep Repair Hair Treatment, 500g (Peony & Rose)
Amino Master Deep Repair Hair Treatment, 500g (Peony & Rose)
@cosme rating: 4.9/7.0
Changes in hair quality even more! Rich amino beauty for adults that you can actually feel
✓ 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
Intensive Repair and Moisturizing Beauty Hair Treatment: Intensively repairs severe damage from deep within damaged hair, transforming even thin, weak hair into beautiful, bouncy, and lustrous hair. Contains meadowfoam-δ-lactone, a heat repair ingredient commonly used in the beauty industry, whose repair power increases when heat is applied. It gives hair bounce and strength, leading to beautiful hair from the core. <Recommended for> . Those with thick, voluminous hair . Those concerned with damage and coarseness . Those who want to reduce frizz . Those who feel their hair is becoming weak and thin . Those looking for a smooth, lustrous, manageable look * Formulated with 19 types of amino acids, which are the main components of hair, for a moist, smooth feel even after washing * Contains two repair ingredients: keratin, the main protein in hair (raw keratin and hydrolyzed keratin) * Contains CMC ingredients (ceramide NG, cholesterol, quaternium-33: repair ingredients) that act as a pathway for nutrients and moisture within the hair... CMC generally decreases gradually with age. This decrease reduces hair's ability to retain moisture, making it dry, unmanageable, and prone to frizz. *Contains 8 moisturizing ingredients: Double hyaluronic acid (low molecular weight hyaluronic acid, 3D hyaluronic acid), organic coconut oil, 4 honey-based ingredients (propolis extract, royal jelly extract, honey extract, honey), and olive fruit oil. *Contains UV damage care ingredients (moisturizing ingredients): Sanguisorba officinalis extract, Scutellaria baicalensis root extract. *Peony & rose scent. [Texture] This product has a slightly heavier texture than the Moist Treatment and is beige in color. It feels like it adheres well to damaged hair, but also has good growth.
Ingredients
Water, glycerin, behentrimonium chloride, stearyl alcohol, dodecane, cetyl alcohol, amodimethicone, keratin (wool), hydrolyzed keratin (wool), ceramide NG, sodium hyaluronate crosspolymer, sodium hyaluronate, royal jelly extract, propolis extract, honey extract, honey, coconut oil, platinum, scutellaria root extract, burnet extract, meadowfoam-δ-lactone, olive fruit oil, coconut oil alkyl glucoside, dihydroxypropyl arginine HCl, lysine HCl, glutamic acid, glycine, leucine, histidine HCl, serine, valine, asparagus Sodium arginate, threonine, alanine, isoleucine, cystine, proline, phenylalanine, arginine, cysteine, tryptophan, tyrosine, methionine, allantoin, taurine, phytosteryl/octyldodecyl lauroyl glutamate, quaternium-18, quaternium-33, tocopherol, sodium citrate, sodium chloride, cholesterol, disodium inosinate, disodium guanylate, pentylene glycol, caramel, butylene glycol, isopropanol, propylene glycol, dimethicone, steartrimonium bromide, cyclopentasiloxane, lactic acid, phenoxyethanol, fragrance
How to use
After shampooing, remove excess water and apply an appropriate amount to your hair, focusing on the ends. Rub the product into your hair. Then rinse with lukewarm water. *By thoroughly drying your hair before applying, the treatment will not wash away in the water, increasing its effectiveness.
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 scent is not too strong, just a faint fragrance, and it's easy to use. It also makes my hair smooth.
I found a trial size at the Suzykirei store and tried it, so I bought the full product. I have sensitive scalp, thin, soft, and dry hair, so I've had almost no luck with readily available hair care products. I thought treatments would be fine because you just rub them into the ends, but I've usually ended up with a painful experience (mainly around my neck!). This product was a lifesaver. It's a clay-based treatment, so it's relatively gentle on the scalp. After using this, my hair felt incredibly smooth. Maybe my hair isn't in very good condition, because no treatment I've used in the past has left it rough or dry. This product left my hair unusually smooth, so I think I'll be using it again for a while.
My hair has been damaged by hair coloring and daily ironing, so I was looking for a treatment that could repair it. I also like the fact that you can try it several times instead of just using it once. It makes my hair smooth and the scent is so nice, I'm thinking of buying the larger size next time.
The ends of my hair, which tend to become frizzy and dry due to curls, are now smooth. The waves are calmed down, and I can now use the iron for shorter periods of time!