8 the Thalasso
WITH BEAUTY Gentle Repair Moist Treatment, 480ml (Muguet & Lily)
WITH BEAUTY Gentle Repair Moist Treatment, 480ml (Muguet & Lily)
@cosme rating: 5.0/7.0
An all-free serum shampoo that satisfies both your skin and beautiful hair.
✓ 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
Introducing WITH BEAUTY! An all-free*1 serum shampoo that satisfies both skin and beautiful hair. The shampoo contains over 80% serum*2, and the treatment contains over 93% serum*2. It moisturizes hair to the core and balances the moisture inside, reducing frizz and tangles for smooth, manageable hair. It also supports the scalp's barrier function*3 with a microbiome-inspired formula, restoring it to a healthy state that's less susceptible to external stimuli. Its hypoallergenic formula*4 is easy to use even on sensitive skin, making it suitable for both children and adults. It comes in a lily of the valley & lily scent. *1 Free of 28 ingredients subject to food allergy labeling, paraben-free, coloring-free, mineral oil-free, talc-free, UV absorber-free, sulfate-free, paraffin-free, PG-free, alcohol-free (ethanol-free), bactericidal ingredients-free, quaternary cationic surfactant-free, animal-derived ingredients-free, glycerin-free, microplastic-free *2 Moisturizing ingredients (including water) *3 Functions to maintain moisture in the stratum corneum of the scalp while protecting it *4 Patch tested/Does not mean that allergies, skin problems, or skin irritation will not occur in all people [Common to shampoo and treatment] - Free of 28 ingredients subject to food allergy labeling, paraben-free, coloring-free, mineral oil-free, talc-free, UV absorber-free, sulfate-free, paraffin-free, PG-free, alcohol-free (ethanol-free), bactericidal ingredients-free, quaternary cationic surfactant-free, animal-derived ingredients-free, glycerin-free, microplastic-free [Shampoo only] - Silicone-free [Treatment only] - DEA-free [Safety tested] - Patch tested, sensitive skin patch tested, RIPT (allergy tested)
Ingredients
Water, stearyl alcohol, dimethicone, PPG-1/PEG-1 stearamine, gamma-docosalactone, polyquaternium-64, sodium dilauramidoglutamide lysine, polyquaternium-92, ceramide NP, ceramide NG, ceramide AP, phytosphingosine, alpha-glucan oligosaccharide, Enterococcus faecalis, dipotassium glycyrrhizate, comfrey leaf extract, centella asiatica extract, scutellaria root extract, licorice root extract, Japanese knotweed root extract, tea leaf extract, rosemary leaf extract, chamomile flower extract, cyclohexyl palmitate Bis-Ethoxydiglycol Dihexane-1,4-Dicarboxylate, Diethyl Sebacate, PPG-90 Butyl Ether, PEG-115M, Isopentyldiol, Ethylhexyl Palmitate, Polyglyceryl-10 Pentastearate, Myristyl Alcohol, Butylene Glycol, Dimethiconol, Aminopropyl Dimethicone, Bis-Cetearyl Amodimethicone, Amodimethicone, Behenyl Alcohol, Behenamidopropyl Dimethylamine, Glyceryl Stearate, Lactic Acid, Sodium Stearoyl Lactylate, Citric Acid, Phenoxyethanol, Fragrance
How to use
Treatment: After shampooing, lightly remove excess water and apply an appropriate amount to the entire hair. 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 shampoo has a mild lather that is typical of an amino acid formula, and the lather spreads without the need to scrub the scalp, leaving it feeling clean and refreshing without drying out. There's little roughness during washing, and it's smooth to run your fingers through. The treatment isn't too heavy, but it moisturizes and manages to hold the hair in place all the way to the ends, and after drying, it reduces dryness and adds shine. The scent is elegant and not too strong, which is also a plus, as it won't tire of daily use. I think this shampoo and treatment has just the right balance for those who want to care for damage while also minimizing irritation to the scalp. I recommend it!
This shampoo and treatment not only improves your hair but also your scalp environment at the same time. I was worried about hair damage and tangles, but I was more concerned about the greasiness and smell of my scalp, so I was hoping that this would also improve... That's how I bought it, and after starting to use it, I was happy to find that the itchiness and greasiness of my scalp, as well as the smell that bothered me the most, no longer bothered me.◎My hair became moisturized and manageable, and it was beautiful without any frizz or dryness!!
I regularly improve the quality of my hair, but I was worried that the ends would become dry over time. After using this shampoo, my hair has been revived! It's packed with serum ingredients and provides excellent moisturizing, making it perfect for dry seasons. It reduces frizz and keeps my hair tidy, so even though I have a lot of hair, it doesn't get too frizzy, which is just right! I had the impression that additive-free shampoos have a weak cleansing power and don't cleanse thoroughly, but this shampoo cleanses thoroughly and leaves my scalp feeling refreshed and moisturized. I think it's a revolutionary shampoo that can care for your hair and scalp! It's affordable and hypoallergenic, so the whole family can use it with confidence! It's great because it's gentle on both your wallet and your hair!
This all-free serum shampoo is gentle on both hair and scalp, and its mild cleansing power means I don't have to worry about dryness or brittleness. The more I use it, the more I notice changes in my hair and scalp. It leaves my hair smooth and silky, and I feel like I'm no longer bothered by frizz. I personally really like the subtle yet elegant scent.
It can be used safely even on days when your scalp is sensitive. The foam is soft and there is little friction while washing, which is a good impression. The treatment is moisturizing but not heavy, and gives hair a natural shine!