STEPHEN KNOLL
Stephen Knoll Deep Renew Treatment Mask, 260g. Weekly rinse-out hair mask for six kinds of damage
Stephen Knoll Deep Renew Treatment Mask, 260g. Weekly rinse-out hair mask for six kinds of damage
Rated 5.1 out of 7.0 by Japan's largest beauty community.
A rinse-out hair mask that intensively repairs six kinds of damage.
✓ 100% authentic. Direct from brand or official stores only
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Track your order via your national carrier (USPS / Royal Mail)
Couldn't load pickup availability
What it is
Deep Renew Treatment Mask is a 260g rinse-out hair mask for intensive weekly repair. Its total damage care formula targets six damage factors, from color, perms, and heat to bleach, UV, and brushing, with penetrating repair capsules of amino acids, ceramides, and cholesterol, plus argan, jojoba, and camellia oils and hyaluronic acid for smooth, hydrated hair.
A total damage care formula targets six damage factors in one mask.
Repair capsules of amino acids, ceramides, and cholesterol penetrate to mend.
Argan, jojoba, and camellia oils plus hyaluronic acid smooth and hydrate.
Ingredients
Water, Glycerin, Dimethicone, Propylene Glycol, Cetearyl Alcohol, Isopropyl Myristate, DPG, Behenyl Alcohol, Behentrimonium Chloride, Dipentaerythrityl Hexahydroxystearate/Hexastearate/Hexrosinate, Argania Spinosa Kernel Oil, Glycine, Tremella Fuciformis Extract, Camellia Sinensis Seed Oil, Tocopherol, Hydroxypropyltrimonium Hyaluronate, Jojoba Seed Oil, Butylene Glycol, Disodium EDTA, Amodimethicone, Isostearic Acid, Isopropyl Alcohol, Ethanol, Ethyl Olivate, Sodium Citrate, Cholesterol, Neopentyl Glycol Dicaprate, Dicocoyl Ethyl Hydroxyethylmonium Methosulfate, Dicocodimonium Chloride, Steartrimonium Chloride, Ceteth-20, Ceramide NG, Ceramide NP, Palmitic Acid, Phytosterols, Diisostearyl Malate, Hydrogenated Palm Oil, Hydrogenated Polyisobutene, Hydrogenated Coconut Oil, Phenoxyethanol, Methylparaben, Fragrance, Caramel
How to use
1. After shampooing, lightly squeeze out excess water.
2. Work an appropriate amount through the hair.
3. Leave on for 2 to 3 minutes, then rinse well. Use once or twice a week.
We ship internationally from Japan!
Frequently Asked Questions
Are the products you sell authentic?
Authenticity is 100% guaranteed. We source directly from the brand, or from official stores within Japan.
All products are fresh off the shelves and never outdated.
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 interested in this as a special once-a-week treatment, so I bought it! I love how it leaves my skin feeling smooth and silky after washing!
This was perfect for me, as I wanted to tame my dry, frizzy hair, which was damaged by straightening and coloring, and needed moisture. I'd been using Fino for many years, but I stopped using it because, although I'm not sure if it was true, I felt like scalp ingredients remained even after rinsing, and I've been struggling with treatments ever since. This product has been a hit for me for a long time. The texture is softer than Fino, so it seems to rinse off properly, and the scent doesn't linger, making it easy to use. My hairdresser told me that my hair would benefit from a treatment instead of a conditioner every day, and this is great because I can use it every day without any stress.
I bought the pouch version to use when traveling or on business trips, and it didn't have a strong smell and made my hair smooth and manageable, so next time I'd like to buy the jar version.
These kinds of hair masks are impressive only at first, but the impression doesn't last if you continue using them. But this mask is different. It makes my hair smooth every time I use it, so I'm impressed! The scent is also nice, like something you'd get at a beauty salon.
I bought it because I like the scent. It comes in a large container, so I plan to use it once a week.