La Sana
La Sana Seaweed Sea Mud Hair Mask, 160g
La Sana Seaweed Sea Mud Hair Mask, 160g
@cosme rating: 4.6/7.0
Penetratingly repairs hair severely damaged by perms or coloring.
✓ 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
Formulated with W Corcare Complex, it penetrates deep into damaged hair to the core. It utilizes the power of rinsing to stay inside and repair. For moisturized, manageable hair.
Ingredients
Water, Cetearyl Alcohol, Glycerin, Dimethicone, Behenamidopropyl Dimethylamine, Bis-Diglyceryl Polyacyladipate-2, Diisostearyl/Phytosteryl Dimer Dilinoleate, Ethanol, Amodimethicone, Hydrolyzed Red Algae Extract, Palm Oil Extract, Sodium Alginate, Hydrolyzed Keratin (Wool), Cocodimonium Hydroxypropyl Hydrolyzed Silk, Meadowfoam-δ-Lactone, Dihydroxymethylsilylpropoxy Hydroxypropyl hydrolyzed keratin (wool), Cramella japonica leaf extract, Chitosan succinamide, Water-soluble collagen, Olive fruit oil, Rosa canina fruit oil, Jojoba seed oil, Squalane, Dihydroxypropyl arginine HCl, Sea silt, Kaolin, Tocopherol, Polyquaternium-61, Isostearyl neopentanoate, Tri(caprylic/capric/myristic/stearic acid)glyceryl, Stearyl alcohol, Oleyl alcohol, Citric acid, Ethylhexyl palmitate, Glycosyl trehalose, bisbutyroxyamodimethicone/PEG-60 copolymer, caramel, hydrolyzed hydrogenated starch, hydroxyethyl cellulose, hydroxyethyl urea, gardenia blue, cocoyl arginine ethyl PCA, lactic acid, ceteth-2, ceteth-20, (C12-4) Pareth-7, (C12-14) Pareth-5, polysorbate 80, methylparaben, propylparaben, BG, fragrance, cetyl ethylhexanoate, hydrolyzed royal jelly protein, phenoxyethanol
How to use
After shampooing, lightly drain the water and take an appropriate amount in your hand, then apply it to your entire hair. Leave it for 2-3 minutes, 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 was surprised at how manageable my hair was after using it. It left my hair smooth and shiny, so I highly recommend it! It felt good to run my fingers through my hair, and it felt softer, so I recommend it for people with curly or dry hair who can't help touching it!
I tend to find hair masks and hair packs a hassle, but this one was pretty good. Above all, the scent is lovely! It's gorgeous yet not overpowering, and has a refined aroma. It's supposed to be a rosehip scent, but there's nothing sour about it—just a soft floral scent. It makes the bathroom a relaxing space. I also like that the texture isn't heavy. It's easy to absorb and rinse off, and doesn't leave a sticky feeling on the scalp, so the hurdle for thinking, "Should I use a mask?" is low. I also appreciate that it doesn't leave the bathroom floor sticky. I'm also happy that it only takes a short time to apply, only 2-3 minutes! The finish is surprisingly light, not heavy and moist, so while this may be a matter of personal preference, I personally found it quite impressive.
I liked the sample so much that I bought the full product. I use it 2-3 times a week. The morning after using this, my hair is noticeably more manageable and easier to style. A sample was included with the La Sana direct mail order, so I brought this with me on my trip. The chanterelles at accommodations often make my hair dry, but finishing with this treatment left it moisturized and manageable. The only thing I don't really like is the scent (although it's not unpleasant), so I wish they came out with a different scent. This is a treatment I want to keep on hand, so I plan to repurchase it when I run out.
The green color is surprising, but it makes your hair smooth. The texture is just the right thickness and easy to spread. It has a fairly strong rose scent. If you don't mind the scent, this hair mask has no downsides.
It leaves your hair moisturized and smooth! The scent is a mild, floral scent, making it easy to use. The texture is a little heavy. I've always loved La Sana's Premium Hair Oil, and it's moisturizing and feels great to use, so I decided to buy this product as well. I'd like to try La Sana's other treatments and shampoos as well!