La Casta
La Casta Aroma Esthe Hair Mask 16, 230g
La Casta Aroma Esthe Hair Mask 16, 230g
@cosme rating: 5.3/7.0
The power of plants makes hair color shine with glossy 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
Contains organic plant ingredients and L-CC+ complex that repair and protect hair damaged by coloring. Gives hair a high-quality shine that highlights the color. A floral herb scent that will make you feel glamorous.
Ingredients
Water, cetearyl alcohol, dimethicone, behentrimonium chloride, propanediol, ethylhexyl hydroxystearate, glyceryl stearate, bis(C13-15 alkoxy) PG amodimethicone, isopropanol, chamomile flower oil, lavender oil, grapefruit peel oil, eucalyptus leaf oil, rice bran oil phytosteryl fatty acid, zein, inula crismoides flower/leaf extract, yuzu fruit extract, hydrolyzed white mustard seed extract, canina rose fruit extract, mura Echinacea japonica extract, Arnica Montana flower extract, Gardenia jasmine fruit extract, Avocado oil, Rosa canina fruit oil, Caprylic/Capric Triglyceride, Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer, Guar Hydroxypropyltrimonium Chloride, Lactic Acid, Butylene Glycol, DPG, Amodimethicone, Dimethicone/Vinyl Dimethicone Crosspolymer, C12-14 Palace-5, C12-14 Palace-7, Caramel, Phenoxyethanol, Fragrance
How to use
Step 1: After shampooing, thoroughly squeeze out excess water from your hair. Step 2: Apply to the entire hair, massaging it in thoroughly, especially in the mid-lengths and ends, where moisture tends to be lacking. Step 3: Leave on for 2-3 minutes, then rinse thoroughly, making sure not to leave any residue behind. If you are concerned about hair damage, comb your hair using a head spa bath time brush and leave it on for 3-5 minutes, which will allow the hair mask to adhere to each strand of hair and enhance the treatment effect. 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 usually use La Casta's Curly Hair Mask 11 and Enrich Glow. I found out they had trial products, so I bought it to try it on hair damaged by coloring. I plan to use it after my next coloring. I'd also like to try other trial products.
I love this shampoo and use it all the time.
I bought this at the Cosme Kitchen store. I stopped by after getting my hair colored at the salon and was looking at La Casta's deep mask. The sales associate mentioned that after coloring, hair tends to become alkaline. Washing with No. 16 for about a week can restore the alkaline state and prolong color retention, so I purchased the trial set. The trial set was used for a week after coloring, and the amount was enough for two washes (two weeks' worth) after coloring. It felt pleasant to wash with, but I didn't notice any difference in color retention compared to other shampoos. An AI analysis of all the ingredients revealed that the ingredients weren't particularly likely to prolong color retention, and the cleansing ingredients seemed a little strong. While I don't take everything at face value, the AI analysis showed that Plus Au, which I've been using recently, is better for color retention. There are other dedicated products (from other manufacturers) for restoring hair's alkalinity, and hematin seems to be effective, so I'll try those in the future. So, I probably won't be buying it again.
16 I've been cheating on this with other brands for a while, but I finally used this one. It lathers well, has a nice scent, and I really like it. I've hardly used other types, so I'd like to try them.