

Something you could only enjoy by traveling,
That hot spring water,
Do you remember?
When your skin became softer,
And all the tension in your body melted away.

Now, every day,
From the shower in our home,
That water flows out.
In your private bathroom,
An hour in the hot spring,
As if your whole body was deeply soaked and relaxed.

Natural sulfur hot spring,
That rich hot spring water,
A whopping 4 times more,
With sulfur content 4 times higher,
100% natural sulfur hot spring water,
Is contained in this one small filter.

Just 15 minutes a day,
No matter what shower you use,
Just plug it in.

The only one in Korea
100% natural hot spring water Onsha Ramen
"Today, the bathroom
becomes a spa."

On the first day of opening
Initial stock sold out
We were also surprised.
We didn't expect so many people to be so enthusiastic.

No. 1
Real-time ranking
Store repurchase rate
Supporters recognize good products
before anyone else

Onsha
1-year large-capacity package
is the best-selling
shower filter.

100% sulfur hot spring water
is contained as it is.
Compare it with the actual hot spring water ingredients.

Highly concentrated natural hot spring water
With a freeze-dried cartridge
In tap water
100% dissolution of residual chlorine
When Onsha is immersed in yellow reagent mixed with chlorine, it purifies and becomes transparent.
Just by taking a shower,
Your skin improves.

From moisture / gloss / elasticity
To improvement of acne-prone skin
Effects verified by 6 types of clinical tests































Frequently Asked Questions
Q. Is there a separate expiration date for the filter?
A. Since the filter is blended with other beneficial ingredients besides hot spring powder, it is recommended to use it immediately after opening, and it can be stored for 3 years from the manufacturing date if unopened.
Q. How long does one filter last?
A. For home use, it can be used for about 25 to 40 days (an average of 1 month), and for travel use, about 7 to 10 days.
Q. Which region's hot spring is it made from?
A. It is made from a hot spring in Yangpyeong, Gyeonggi-do, South Korea, and the hot spring ingredient is registered as a cosmetic ingredient both domestically and internationally, with 13 clinical trials and patent registrations.
Q. Is it rich in minerals?
A. Yes, this hot spring water contains 3.99 PPM of sulfur, ranking in the top 1% of domestic hot spring sulfur content.
Q. I often drop the shower head. Is it durable?
A. There is no problem if it falls on the front or back, but please be careful as the connecting part may break if it is dropped on the side.
Q. Is it compatible with other showerheads?
A. If you purchase only the hot spring filter, it is compatible with all showerheads due to the international standard specifications. However, when using a showerhead with an on/off option, it may separate due to internal pressure in the case, so we recommend using a showerhead dedicated to Onsha.
Q. The hot spring refill runs out too quickly.
A. If you insert the refill in the wrong direction, it will be consumed much faster. Please check the guide and insert it in the correct direction.
Q. How is the hot spring filter different from other vitamin filters?
A. The hot spring filter is made by blending Onsen water, a unique cosmetic ingredient from Seollab, and has undergone multiple clinical tests. As the hot spring powder dissolves, it maximizes the effect of enjoying rich minerals and hot spring water at home with ease.
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