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100% organic castor oil
Mess-free · precise application
For days you feel bloated
For days you feel bloatedFeeling bloated?
Meet Kastor.
100% organic castor oil in a precise, mess-free roller for your lower-belly ritual.
100% organic · Tracked shipping · 14-day returns
01The oil
New to castor oil?
Meet the oil behind the ritual.
Castor oil is a botanical oil with many body-care benefits. Kastor makes it simple with a mess-free lower-belly roller.
Castor oil
Ricinus communis
Why women love
Castor oil.
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Period comfort
Helps ease period discomfort.
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Less bloat
For a lighter-feeling belly.
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Digestive support
A soothing ritual when your belly feels off.
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Hormonal balance
A ritual designed around your natural cycle.
30 ml · one simple ritual
Made for every body, and everybody.
Every belly, every bathroom, every evening. Every photo on this site is a real one.
Reviews
What people say after a month.
214 reviews on Trustpilot
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Take it. Roll it. Feel the advantage.
Three steps, about two minutes.
Take the roller
One hand, nothing to set up.
Roll on your belly
A few slow passes, then work it in.
Feel the advantage
- A softer, calmer belly and ease through cramps.
- A steadier rhythm, and warmth to end the day.
The difference
Not every belly routine asks the same of you.
See how the roller compares to the oil-and-cloth routine most people give up on.
Shop the Kastor roller4.7 / 5 from 67 verified reviews
routine
Meet the founder
Why I created Kastor.
Felix, founder of Kastor
I kept coming across castor oil, but the way people were using it often felt messy, complicated and a little outdated.
I wanted to create something much simpler: a clean, easy way to make castor oil part of your everyday routine.
That idea became Kastor: a modern take on a traditional oil, designed around a simple lower-belly ritual.
Questions.
What is castor oil?
A botanical oil pressed from the seeds of the castor plant (Ricinus communis). It has been used in skin and body care for generations. Kastor is nothing but that oil, organic and undiluted.
How do I use Kastor?
Roll a thin layer over your lower belly, massage it in with your hand for a minute, then let it settle. Most people make it part of the evening.
Where can I use it?
It is designed for the lower belly. It is a plain body oil, so you can use it on other areas of unbroken skin too — avoid the eyes.
How often should I use it?
Daily is fine. At that pace one 30 ml roller lasts about a month.
Does the roller contain castor oil?
Yes. Every roller arrives pre-filled with 30 ml of pure, organic castor oil — nothing else is added.
How should I store it?
Upright and closed, at room temperature and out of direct sunlight.
What is Kastor made from?
The oil is 100% Ricinus Communis (Castor) Seed Oil, organic. It comes in a glass roller bottle inside a paper carton; the full ingredient list is printed on the pack.
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