Sign
Sign Systemic Curl Keep Oil, 50ml
Sign Systemic Curl Keep Oil, 50ml
Rated 4.3 out of 7.0 by Japan’s largest beauty community
Use heat from a hair dryer, curling iron, or flat iron to keep your style
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
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What it is
A new line from the popular Sign Systemic Oil series is now available for a limited time! Both the oil and mist are rinse-off hair treatments. Upgrade your hairstyle with just daily use. This oil type contains heat-protecting ingredients that repair hair from the inside out for a lasting effect.
Ingredients
Rice bran oil, ethyl isostearate, pentaerythrityl tetraethylhexanoate, isododecane, mineral oil, soybean oil, PEG-20 glyceryl triisostearate, diethyl sebacate, tomato seed oil, gamma-docosalactone, phytosteryl/octyldodecyl lauroyl glutamate, ascorbyl tetrahexyldecanoate, myristoyl pullulan, tocopherol, fragrance
How to use
Spread an appropriate amount on your palm and blend well, focusing on the ends of your hair, then finish with a hair dryer, iron, or curling iron.
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.