Kefir Soap｜Cold Process Soap
Price range: NT$250 through NT$270
A handmade cold-process soap with kefir and five plant oils and butters, including olive and coconut. Use it on your face and body.- It lathers easily into fine bubbles that rinse off well, and leaves your skin feeling soft.
- Simple ingredients with no added colouring or preservatives. Six scents, each with its full ingredient list.
- Made by a handmade-soap studio in Taiwan: the kefir goes in frozen, and the bars cure for over a month before they are vacuum packed.
Choose your scents and how many bars
LavenderFresh floral, a bestsellerNT$260- LemonBright citrus, a bestsellerNT$260
- Australian eucalyptusFresh herbal, a bestsellerNT$260
- Red cypressLimitedWarm wood, limited editionNT$270
- GeraniumLimitedRose-like floral, limited editionNT$260Sold out for now
- OriginalNo essential oil, a light soap scentNT$250Sold out for now
One bar weighs about 100 g (within 10 g either way) and comes vacuum packed.
- Real people on LINENot sure which scent? Just ask us.
- Handmade in TaiwanMade bar by bar in a Taiwanese soap studio.
- Vacuum packedKeep it somewhere cool and dry until you open it.
Cash on delivery
Bank transferSix scents
Start with the scent: which one do you like?
All six share one recipe; only the scent changes. Five have one plant scent ingredient each, and the original has none, just a light soap scent.
Lavender
FloralFreshBestseller
A fresh lavender scent that drifts gently while you wash: a relaxing lavender fragrance. One customer wrote in a review: “I love the lavender scent.”
Scent ingredient: lavender.
Lemon
CitrusFreshBestseller
Lemon essential oil gives a bright, clean citrus scent, lovely for washing your face in the morning or a summer shower.
Scent ingredient: lemon essential oil.
Australian eucalyptus
HerbalFreshBestseller
Australian eucalyptus essential oil smells fresh and green, like a walk through the woods after rain. You come out of the shower feeling fresh.
Scent ingredient: Australian eucalyptus essential oil.
LimitedRed cypress
WoodyWarmLimited
Red cypress essential oil has a warm, softly sweet wood scent that brings to mind mountain cypress trails and a cypress-wood bathtub.
Scent ingredient: red cypress essential oil.
Limited edition: once this batch sells out, the next one comes next year.
LimitedGeranium
Rose-likeSweetLimited
Geranium essential oil smells a lot like roses: a sweet floral scent with a fresh, herbal touch.
Scent ingredient: geranium essential oil.
Limited edition: once this batch sells out, the next one comes next year.
Original
Light soap scentSimple
The original has no essential oil, just the light natural scent of kefir and oils. If you prefer unscented soap, this is the one.
Scent ingredient: none. This is the simplest recipe.
What is in one bar
Simple ingredients, every one listed
This is everything that goes into the bar. Tap each one to see what it does in the soap.
The star of the bar
Kefir
Kefir is milk fermented with kefir grains. In the soap, its milk fat makes the lather creamier, and its lactic acid turns into sodium lactate as the soap forms, which makes the bar firmer and slower to go soft.
Mild and nourishing
Olive oil
The classic oil of cold-process soap. It makes the bar mild, and your skin feels nourished after washing.
Lather
Coconut oil
Coconut oil makes the bar lather easily with plenty of bubbles, and washes away dirt and excess oil.
Smooth feel
Sweet almond oil
Sweet almond oil gives fine bubbles and a smooth, silky wash.
A firm bar
Palm oil
Palm oil makes the bar firm, so one bar lasts longer.
Creamy lather
Shea butter
The butter of the shea nut makes the lather creamy and leaves your skin feeling soft.
Turns oil into soap
Water and lye
All soap is made with lye, sodium hydroxide (NaOH). The lye is dissolved in purified water and mixed with the oils, which slowly turn into soap and glycerin: this is called saponification. By the end of the cure the lye has become soap and most of the water has evaporated.
Keeps the oils fresh
Vitamin E
A little vitamin E keeps the oils fresh, so the bar keeps its scent and quality for longer.
Scent
Essential oils
Each of the five scents has one plant scent ingredient, such as lemon or red cypress essential oil; the original has none. The scent is light and leaves just a hint behind.
The full ingredient list of each scent is in the label section below.
How cold-process soap is made
First the kefir is frozen into ice cubes, then the soap waits over a month
Cold-process soap is never boiled. Kefir contains milk sugars, which scorch when it gets hot and turn the soap brown with a burnt smell. So every step of making kefir soap is about keeping it cool and waiting patiently.
1The day before
The kefir is frozen into ice cubes
The day before, the kefir is frozen in ice-cube trays. On soap day, the jug of cubes also stands in a bowl of ice water.
WhyLye gets hot as it dissolves. Starting from ice keeps the kefir from scorching.
2Kept under 30°C
The lye goes in a spoonful at a time
Wearing gloves, the soap maker sprinkles the lye (sodium hydroxide) onto the kefir cubes a spoonful at a time, stirring and watching the thermometer, until the cubes melt into a pale cream lye solution.
WhyAdding it slowly keeps the temperature down, so the soap stays ivory and smells clean.
3About 30–40°C
Mixed with the oils until it leaves a trail
The weighed olive, coconut, sweet almond and palm oils and shea butter are combined, then blended with the kefir lye. The batter thickens like custard; a drizzle leaves a raised trail on the surface, which soap makers call “trace”. Now the essential oil goes in.
WhyThe trail shows the oils and lye are evenly mixed and have started to turn into soap.
41–2 days
Into the mould to saponify
The batter is poured into a paper-lined wooden mould and left for a day or two. During this time the oils and lye slowly turn into soap and glycerin: this is saponification.
WhyAll the glycerin that forms stays in the bar, so the bar feels nourishing to wash with.
5Out of the mould
Unmoulded and cut into bars
Once firm, the loaf comes out of the mould and is cut into bars of about 100 g with a soap cutter.
WhyWaiting until it is firm gives clean, even cuts. Every bar is cut by hand, so shape and weight vary a little.
6Over a month
Air-cured
The bars stand apart on an airy rack and are turned regularly so every side dries. The water slowly evaporates, and saponification finishes completely.
WhyA cured bar is harder and milder, stays firm in use and lasts longer.
7Before it ships
Vacuum packed
Each cured bar is vacuum packed and sent to you.
WhyThe vacuum keeps the scent in the bar; until you open it, just keep it somewhere cool and dry.
How it feels
Fine bubbles, an easy rinse and a comfortable feel
This is how customers describe it in their reviews.
Lathers easily into fine bubbles
A few rubs between your hands make bubbles; in a foaming net it makes a big cloud of fine lather.
Lathers easily with fine bubbles, has a natural scent, and doesn’t leave my skin dry after washing.羅・2024.12
No tight feeling afterwards
Cold-process soap keeps the glycerin that forms as it is made, so your skin feels soft after washing.
The scent is very natural, and my skin doesn’t feel tight after washing; it feels so soft.amy・2024.06
A light, natural scent
You smell it when you open the pack; it drifts lightly while you wash and leaves just a hint behind.
The soap has a light scent that feels very natural.moment・2023.07
Reviews
What customers say
I bought the mint one. The scent is so fresh and natural. I’ll try another variety next time.Kelly0314 · 2026.01.29
Lathers easily with fine bubbles, has a natural scent, and doesn’t leave my skin dry after washing.羅 · 2024.12.14
The scent is very natural, and my skin doesn’t feel tight after washing; it feels so soft. I love the lavender scent. Please introduce more varieties!amy · 2024.06.21
I think the price is a little high, but it’s good to wash with and I’ll buy it again.Anonymous · 2023.08.26
Very fast dispatch! I think it arrived in two or three days. The soap has a light scent that feels very natural. I can’t wait to use it.moment · 2023.07.07
How to use and keep it
Keep it dry and it stays good to the last sliver
As long as it can drain and dry after each use, a handmade bar stays firm and pleasant to use.
Every day
Wet your hands and the bar
Wet your hands and the soap with clean water.
Work up a lather
Rub it between your hands, or in a foaming net for more and finer bubbles.
Wash with the foam, then rinse
Wash your face or body gently with the foam and rinse with clean water. If foam gets into your eyes, rinse with plenty of clean water.
Keep it like this and it lasts longer
Use a draining soap dish
After use, put it on a slatted dish that drains, away from the tap, so it dries quickly.
Cut it in half
To make it last longer, cut the bar in half and use one half at a time.
Store unopened bars cool
Keep unopened vacuum packs in a cool, dry drawer or cupboard, out of direct sunlight.
When to use it
For your face and body, and as a gift
The label says: for bath and face, for normal skin.
Washing your face at night
Whip up fine foam in a foaming net and wash gently; your skin feels fresh and soft afterwards.
A relaxing shower
As you wash, it gives off a light lavender scent that helps you unwind.
A gift for family and friends
Mix any of the six scents and give a few bars to your parents or friends: everyone uses soap.
- Use
- Bath and face.
- Suitable for
- Normal skin.
- One bar
- About 100 g, vacuum packed.
Label
What the label says
The same details as the pack, with the ingredients listed per scent.
- Product
- 東歐嚴選｜kefir.link kefir yogurt soap
- Use
- Bath and face
- Suitable for
- Normal skin
- Weight
- 100 g per bar, within 10 g either way
- Packaging
- Vacuum packed, one bar per pack
- Made in
- Taiwan
- Use by
- 5 May 2028 (ROC year 117/5/5)
- Manufacturer
- Made for 東歐嚴選｜kefir.link by 皂咖工作室 (business no. 91446425, registration 衛藥字第11038738100號, tel. 0902-182-256)
Full ingredients (tap a scent)
Olive oil, coconut oil, sweet almond oil, palm oil, shea butter, lavender, kefir, purified water, vitamin E, sodium hydroxide (NaOH)
Olive oil, coconut oil, sweet almond oil, palm oil, shea butter, lemon essential oil, kefir, purified water, vitamin E, sodium hydroxide (NaOH)
Olive oil, coconut oil, sweet almond oil, palm oil, shea butter, Australian eucalyptus essential oil, kefir, purified water, vitamin E, sodium hydroxide (NaOH)
Olive oil, coconut oil, sweet almond oil, palm oil, shea butter, red cypress essential oil, kefir, purified water, vitamin E, sodium hydroxide (NaOH)
Olive oil, coconut oil, sweet almond oil, palm oil, shea butter, geranium essential oil, kefir, purified water, vitamin E, sodium hydroxide (NaOH)
Olive oil, coconut oil, sweet almond oil, palm oil, shea butter, kefir, purified water, vitamin E, sodium hydroxide (NaOH)
How to use:Wet your skin, work the bar into a lather with water and wash.
Storage:Keep in a cool, dry place, away from damp and standing water.
Caution:For external use only. If it gets into your eyes, rinse with plenty of clean water.
About handmade soap:Every bar is cut by hand, so shape, colour and weight vary a little. Photos were taken professionally; colours may look slightly different on your screen.
At a glance
Kefir to drink, to make yourself, and to wash with
To drink
Original milk kefir- Thick kefir we make for you
- A 500 g bottle, delivered chilled
Make it yourself
Kefir grains- Make it at home with fresh milk
- Tools and a 5‑page manual included
To wash with
Kefir cold-process soap- Handmade soap with kefir
- Six scents, about 100 g a bar
Delivery & payment
Room-temperature pickup at 7‑ELEVEN or FamilyMart, or chilled with your kefir
Kefir soap ships at room temperature. Ordered with kefir, the whole order goes chilled in one parcel.
7‑ELEVEN / FamilyMart pickup (room temperature)
NT$60 · free from NT$899
Soap, grains and other room-temperature items go this way to a store near you. You get a notice when it arrives.
HCT chilled home delivery
NT$150 · free from NT$999
Used when you order kefir too. Pick a delivery date at checkout.
Black Cat chilled home delivery, or Black Cat 7‑ELEVEN chilled pickup
NT$160 · NT$80 from NT$1,300
Pick a date and time slot, or collect it chilled at 7‑ELEVEN.
- Tracking number by emailWe also email you when it reaches the store or is delivered.
- Quality guarantee: faulty items replaced or refundedSend photos of the parcel and product on LINE within 72 hours; shipping is on us.
Payment
Card · LINE Pay · cash on delivery · bank transferFull delivery information ›Payment details ›Returns policy ›
FAQ
What customers ask us most
Can I wash my face with it?
Yes. The label says bath and face. For your face, whip up foam in a foaming net first, wash gently with the foam and rinse with clean water.
Which skin types is it for?
The label says normal skin. The first time, try it on a small patch on the inside of your wrist.
Is the scent strong?
It is light: you smell it when you open the pack, it drifts gently while you wash and leaves just a hint behind. For no scent, choose the original.
There is a little white powder on the bar. What is it?
That is soap ash, which forms when handmade soap meets the air while it is made. It rinses off with a little water, and the bar is fine to use.
How long does one bar last?
That depends on how often you use it and where you keep it. On a draining dish that lets it dry after every use it lasts longer, and you can also cut it in half and use one half at a time.
How long can I keep an unopened bar?
Every bar shows its use-by date; this batch is good until 5 May 2028. Keep unopened vacuum packs somewhere cool and dry. Once opened, the scent slowly softens, which is natural for essential oils.
Do all bars look the same?
Each bar is cut by hand, so shape, colour and weight vary a little; every bar weighs 100 g within 10 g either way.
What if a limited scent sells out?
Geranium and red cypress are limited editions: when this batch sells out, the next one comes next year. Ask us on LINE when it is due.
Can I order it with kefir or kefir grains?
Yes; in one order they ship together. With only soap and grains, choose 7‑ELEVEN or FamilyMart room-temperature pickup, free from NT$899. When the order includes kefir, the whole order ships chilled.
