REIKO KAZKI
REIKO KAZKI Amino Acid Skin Conditioning Shampoo, 300ml
REIKO KAZKI Amino Acid Skin Conditioning Shampoo, 300ml
@cosme rating: 5.7/7.0
Skin care idea! A shampoo designed for adult hair and scalp
✓ 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
The secret to youthfulness is firm skin and shiny hair! Skin and hair you'll want to touch! Reiko Kazki's products are designed with the desire to create products that are not only good for the skin, but also make you look youthful and healthy. <<Kazuki Reiko's thoughts on concerns people of a certain age face>> Many people want volume, firmness, and shine. At a certain age, itching becomes more common. <<What I've learned from observing many women>> The secret to looking young is firm skin and shiny hair. Volume is also necessary. Your face (makeup) is like a picture, your hair is like a picture frame. Having good makeup alone isn't enough. They're a set. Your face and scalp are one piece, and people with beautiful skin often have beautiful hair. When you have concerns about your face or hair, your attention is focused on them. By resolving a person's concerns, you can feel more energized. Your scalp is like soil, and your hair is like a plant. Just as soil is important for growing healthy plants, healthy hair cannot grow without a healthy scalp. To achieve this, a healthy scalp is essential! ≪Massage your scalp (blood flow) too! Benefits of scalp massage: 1) Improves scalp blood circulation (improves complexion) 2) Prevents scalp sagging (lifts the face) 3) Maintains healthy hair 4) Prevents gray hair 5) Relaxes hair . More than 90% of hair is made up of amino acids! As we age, amino acid production declines. A lack of amino acids needed to produce keratin hinders healthy hair growth. Therefore, Kazuki Reiko focused on the amino acids that make up hair. She developed a hair care series that gently cleanses and addresses your concerns with amino acid-based surfactants.. Removes dead skin cells and sebum. Improves scalp environment. Removes dirt without harshness. Since adult women's scalps tend to be dry, we use a gentle cleanser. . Gently cleanses, leaving skin hydrated and refreshed. Because this shampoo is for daily use, we carefully select gentle amino acid-based cleansing ingredients. Cleanses thoroughly with amino acids for a moisturized, lustrous finish! Contains amino acid surfactants (sodium lauroylmethylalanine). Contains PRODEW® 500, a hair-specific amino acid beauty ingredient developed specifically for hair to protect scalp moisture. Replenishing hair with amino acids is said to be effective in moisturizing, strengthening, and preventing color fading. It replenishes the body's natural moisturizing components, hydrating scalps damaged by frequent coloring and perms. It protects the scalp from dryness, just like skin care. Hydrolyzed keratin, which adds volume and body to thinning hair, quickly replenishes keratin protein, leading to stronger hair. It creates a soft, lifted look from the roots. Contains color-retaining ingredients (hydrolyzed silk/PG propyl methylsilanediol crosspolymer) to prevent color fading from gray and other dyed hair. . White soap fragrance: Turn your daily bath time into a relaxing time♪ A refreshing citrus scent of bergamot is at the top, followed by a slightly sweet floral scent of jasmine, and a white soap fragrance that finishes with a sensual and clean harmonious blend of musk and amber.
Ingredients
Water, cocamidopropyl betaine, sodium methyl cocoyl taurate, sodium lauroyl methyl alanine, cocamide DEA, sodium chloride, butylene glycol, hydrolyzed keratin (wool), hydrolyzed collagen, hydrolyzed royal jelly protein, honey, squalane, arginine, aspartic acid, glycine, alanine, serine, valine, isoleucine, threonine, proline, histidine, phenylalanine, gamma-docosalactone, hydrolyzed silk/PG propyl methylsilanediol crosspolymer, sodium PCA, PCA, propanediol, phytosterols, behentrimonium chloride, polyquaternium-47, distearyldimonium chloride, PEG-120 methyl glucose dioleate, polyquaternium-10, sodium lactate, citric acid, isopropanol, ethanol, phenoxyethanol, sodium benzoate, fragrance
How to use
After thoroughly wetting your scalp and hair, apply an appropriate amount to your hair and scalp, lather well, and then rinse thoroughly.
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 won a giveaway from Suzykirei and here are my impressions after using it. I think it's perfect for me as I have thin, soft hair. It made my hair, which tends to tangle, smooth and easy to comb through. Personally, it's not overly moisturizing, but rather has a smooth, moisturizing feel that's just right (can you tell?). Above all, I really liked the scent. It's citrusy, organic, and soapy...it's very similar to the scent of Au Paradis' Fleur. I'd definitely like to buy it again.
First of all, I really liked the soapy scent! It also lathers well, is easy to wash with, and leaves my hair feeling moisturized. The treatment also doesn't have that typical silicone feeling at all, and it left my hair feeling moisturized after rinsing. My hair tends to get frizzy after drying with a hair dryer, but this product kept it moisturized even after drying. I definitely want to buy this product again.
I used the shampoo and treatment set! The scent is a soft, pleasant scent of Shima Soap that isn't too strong. The shampoo gently cleanses with amino acids and leaves the scalp feeling refreshed. It lathers well! Using the treatment together makes my hair even smoother. I've been using it for a few weeks now and I feel like my hair has more volume and strength!
The shampoo left my hair feeling refreshed and cleansed, and I felt like it thoroughly cleansed my scalp. The treatment has a soft texture and is easy to absorb into my hair, as it contains amino acids, so it feels like it delivers nutrients. My hair is heavy, especially the ends, and it's difficult for the treatment to penetrate, but this treatment absorbed into my hair easily. I was very happy that it was still smooth even after rinsing.
The shampoo lathered well and I felt like it cleansed my hair thoroughly. My hair is naturally dry, but after the treatment, it felt moisturized and manageable.