Kul — håndlavet sæbe med aktivt kul fra kokosskal, RenHverdag

Kul

89,00 DKK
Kul

Kul

89,00 DKK

Onion and fish on your fingers. Smoke in your hair. Yellow smoker's fingers. Sweat. An itching scalp.

This really is one soap for all of it.

Most people think it's the skin. Often it's the layer on top. Shampoo, conditioner and shower gel leave a film — silicone, wax, residue. Make-up does the same. Charcoal binds it and takes it with it.

The same base as Ren — with activated charcoal from coconut shell added.

Activated charcoal binds dirt to its surface. Coconut shell charcoal has the largest surface area per gram of the common charcoal types — around twice that of bamboo. More surface, more dirt. Not magic. Chemistry doing its job.

And it doesn't leave anything behind itself.

Customers use it most often somewhere we hadn't counted on: in their hair. Try it for a week. Most don't switch back.

Black all the way through. The lather is grey. It doesn't transfer. It's charcoal, not paint.

At least 100g.
Made by hand.

Cold process

From food and earth

Handmade in Fredericia

The full list is right here

Can you use it on your hair?

Yes — with one step you mustn't skip.

This bar works as a hair soap. But because it's real soap, it's alkaline — and that makes the hair's outer layer lift. So you always finish the wash with a vinegar rinse, which closes the surface again and gives the hair shine and movement.

The first couple of times your hair may feel different while it gets used to being without the substances that normally settle as a film. The vinegar rinse is the whole difference.

How to do it:

  1. Wash your hair with the bar, or lather it in your hands and massage into the scalp.
  2. Rinse thoroughly.
  3. Mix 1 tbsp vinegar (ordinary or apple cider) into half a litre of water. Pour it through your hair as the last rinse.
  4. Rinse lightly with clean water if you like — the vinegar smell disappears as the hair dries.

Don't want to mix it yourself? Our ACV leave-in does the same — it just stays in the hair, so you neither measure nor rinse.

Very short hair? Then you can skip the vinegar rinse if you want. It's with longer hair that the alkalinity really shows — which is why most men and very short-haired people manage fine with just the bar and water.

What you get
You're free of unnecessary chemistry and of plastic bottles.

Many people find their hair lighter — especially after a soap with Kul.

If you want to understand why hair has to be "reset", and what happens along the way, you can read more here

Ægte kunde – hår bagfra Ægte kunde – hår fra siden
How to use it

Hands — wet your hands, rub the bar between them until there's lather, wash, rinse.

Face — lather in your hands first. Not the bar straight onto your face. Wash with the lather.

Body — lather in your hands or on a cloth. Use all over.

Shaving — lather up and apply straight to the skin. Enough glide to shave without extra products. Use a shaving brush if you have one. It gives thicker lather.

Washing up — wet a dish brush and rub it in circles against the bar. That's enough lather for one round. Or a scourer, or a microfibre cloth. Yes, it works.
One bar — many bottles

Hand soap, body wash, face wash, shaving foam. More products, more plastic bottles, more ingredient lists you can't read.

Or one bar, wrapped in a piece of tissue paper for hygiene. It can go in the paper recycling. No plastic, no pump, no bottle to rinse out. Without the excess water that's been driven across the country in a lorry. Without the 20+ ingredients it takes to keep a liquid soap liquid.

Turn a bottle of liquid soap around. Read the ingredient list. Count the words you can't pronounce.
Storage

Keep the soap dry between uses. A soap dish that drains, or a sisal pouch.

Air the bathroom out after each use. Glycerin draws moisture from the air — good for your skin, bad for your soap if the room is always steamy. The soap needs to breathe. So no plastic bag for any length of time either.

That goes for both kinds. The better it dries between uses, the harder it gets, and the longer it lasts. A soap lying in a puddle uses itself up.
Beef tallow or olive

That's entirely up to you. Both do exactly the same — hair, face, hands, body, washing up.

The difference isn't what they can do, but what you prefer: how the lather and the glide feel, during and after. Some swear by one, some by the other. Your own preferences decide — ethical, skin-related, or something else entirely.

Beef tallow — not vegan. Viking. A hard bar. The fatty acids — palmitic and stearic — are the same ones the skin produces itself. The lather comes quickly and is full. And it's economical.

Olive — vegan. Built on a bastille recipe: over 70 % olive oil. A completely different feel, during and after. The lather is creamy rather than bubbly and feels extra smooth against the skin.

Both kinds have washed whole cultures for hundreds of years. The difference was geography — Scandinavia had no olive groves.

Both need to sit dry between uses.
Kul — håndlavet sæbe med aktivt kul fra kokosskal, RenHverdag
  • Kul — håndlavet sæbe med aktivt kul fra kokosskal, RenHverdag
  • Kul
  • Kul — håndlavet sæbe med aktivt kul fra kokosskal, RenHverdag
  • Kul
Kokosolie og sheasmør i små skåle, to karafler med olie og en opvaskebørste på hessian
Ingredients

Sodium Tallowate (organic beef tallow), Sodium Cocoate (organic coconut oil), Aqua (distilled water), Glycerin (forms on its own during saponification), Charcoal Powder (activated charcoal from coconut shell)
The raw materials

All our soaps are made in Denmark by the cold process. Fat meets lye. The fat is split. The glycerin is released and stays in the soap — instead of being removed and sold separately, as the industry does.

Never palm oil. We don't use pork fat, rapeseed or sunflower either. Not out of principle — but because the fat profile doesn't make a soap that lasts.

Every single raw material is chosen on quality, origin and function. We have the supplier spec, the INCI and the CAS number for all of them — and we choose the form to suit the purpose, not the dogma: unrefined where the natural content matters, refined where scent and stability matter.

You can read a great deal more about it on What's in it, where every oil, the clay, the lye and the water are explained one by one.

Try also
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K
Kirsten M.

Jeg bruger kulsæben i ansigtet, i køkkenet og faktisk også på mit barnebarn — hun er helt vild med det "sorte skum" 😄 I køkkenet er den fantastisk til at fjerne lugt af fisk og løg fra hænder og skærebræt. Har aldrig haft en sæbe der kan så meget.

S
Simone

Min hår har fået så meget mere struktur siden jeg begyndte med kulsæben! Mine naturlige krøller er kommet frem igen og håret har fået en fylde jeg ikke har set i årevis. Er virkelig positivt overrasket.

H
Hanne Larsen

Jeg har brugt kulsæben som hårvask hver anden uge i et stykke tid nu, og mit hår klasker simpelthen ikke længere. Troede ikke rigtig på det, men det virker faktisk.