8 the Thalasso
8 The Thalasso Cleansing Repair & Smooth Serum Shampoo Refill
8 The Thalasso Cleansing Repair & Smooth Serum Shampoo Refill
@cosme rating: 4.9/7.0
A moisturizing serum shampoo that leaves your hair smooth and silky all the way to the ends.
✓ 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
This serum shampoo features a "Thalasso Stem Cell Formula" formula, containing three types of stem cell extracts and seaweed extract. It delivers moisture to damaged, sparse hair, binding and retaining it, leaving it smooth and manageable all the way to the ends. The shampoo's fine, creamy lather moisturizes, while also improving the scalp environment and thoroughly removing dirt from the scalp and hair. It delivers nutrients to the inside of the hair, smoothing the surface and leaving it silky smooth all the way to the ends. It has a fruity floral scent.
Ingredients
Water, lauramidopropyl betaine, sodium lauroyl methylalanine, cocamidopropyl betaine, TEA-cocoyl glutamate, sodium olefin (C14-16) sulfonate, cocamide DEA, sodium methyl cocoyl taurate, sodium lauroyl hydrolyzed silk, propanediol, BG, squalane, apple fruit cell culture extract, cherry blossom leaf extract, peppermint leaf extract, Porphyra yedoensis extract, algae extract, crested oak extract, water-soluble collagen, seawater, hydrolyzed wool cuticle protein, ceramide NP, ceramide NG, ceramide AP, crystals Mumm maritimum callus culture filtrate, chitosan succinamide, Eryngium maritimum callus culture filtrate, sodium alginate, polyquaternium-7, phytic acid, polyquaternium-10, guar hydroxypropyltrimonium chloride, lecithin, cocamide methyl MEA, glycerin, cholesterol, quaternium-33, xanthan gum, sodium carbonate, polyquaternium-50, decyl glucoside, polyquaternium-47, pentasodium pentetate, silver oxide, disodium EDTA, sodium citrate, citric acid, sodium chloride, sodium benzoate, phenoxyethanol, fragrance
How to use
After wetting your hair thoroughly, apply an appropriate amount to your entire hair, 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.
The scent was a lovely floral scent that wasn't too sweet, but my hair was so dry that it still felt dry.
I found a cheap trial size at a recycle shop, so I bought one. My scalp odor and greasiness disappeared after using it. My hair is now smooth. I'd been using olefin-based shampoos, which had me concerned about the oiliness and odor of my scalp, but this is an amino acid-based shampoo, so it's improved the situation. I have thin hair that gets tangled no matter what shampoo I use, and it still gets tangled with this shampoo. I guess it's just my hair type.
It makes my hair shiny. It smells great and is an easy-to-use product!
I tried using it for the first time in a while ^ ^ It made my hair smooth and silky without any dryness!
[Testing 200 Shampoos] No. 120 Thank you so much for always reading! Following me encourages me to post more ★ 20s Hair type: Thick/Strong and bouncy, semi-long/Bleached hair (2-3 times) It has a fruity floral scent that is gorgeous and soothing, and I think many people will like it. It lathers well, isn't harsh, and has good cleansing power, so I was very impressed. It leaves my hair smooth and shiny, and I think I understand why it's so popular. It's a shampoo that's not too strong in a good way, and everyone will love it!