collagem
collagem Straight Glow Treatment Refill, 370g
collagem Straight Glow Treatment Refill, 370g
Rated 5.1 out of 7.0 by Japan’s largest beauty community
Rich collagen hair pack formula for bouncy, hydrated hair
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
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What it is
This rich collagen hair pack was created with a focus on the moisture-retaining power of collagen. This highly moisturizing treatment combats frizzy and frizzy hair. [Highly moisturizing & conditioning] For smooth, bouncy hair. *This product is a refill, so the bottle is not included.
Ingredients
Water, cetearyl alcohol, dimethicone, behentrimonium chloride, soybean seed oil, isopentyldiol, succinoyl atelocollagen, hydrolyzed collagen, hydrolyzed collagen PG-propyl methylsilanediol, glucosyl hesperidin, dihydroxypropyl arginine HCl, sodium hyaluronate, hydroxypropyl guar hydroxypropyltrimonium chloride, steartrimonium chloride, sorbitol, sodium dilauroyl glutamate lysine, bis(behenyl/isostearyl/phytosteryl) dimer dilinoleyl dimer dilinoleate, dimer dilinoleyl dimer dilinoleate, butylene glycol, caprylic/capric triglyceride, PEG-200 hydrogenated castor oil, bis(isostearoyl/oleoyl)isopropyl)dimonium methosulfate, malic acid, isopropanol, amodimethicone, EDTA-2Na, phenoxyethanol, sodium benzoate, fragrance
How to use
After washing your hair, lightly squeeze out excess water and apply an appropriate amount, massaging it into your hair from mid-lengths to ends. Leave it on for 1-2 minutes, then rinse until your hair feels smooth. Applying the product from the roots can cause stickiness, so focus on the ends.
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.