Cold saponification

Artisanal soap creation


Cold saponification is a chemical reaction done at room temperature where lye and fats (in our case plant oils and butters) react to glycerine and soap. 


Saponification ist a total Reaktion, i.e. the Reaktion goes on until one of the two starting products (lye or fats) is exhausted. Usually the ingredients are calculated so there is more fat than what the lye can saponify. Thus creating soaps that provide nourishing and softening properties for your hair and skin. 

The majority of plant oils and butter used in saponification contain non-saponifiable parts. Molecules which will not be transformed by the lye and give the soap antioxidant, nourishing, emollient, softening, protective, etc properties. 


The naturally contained glycerine adds moisturising properties. 

In addition, different plant and mineral powders can be add to create skin and hair loving and beautifying soaps.

Coconut and castor oil as base


The base of all our soaps contains organic copra vegetable oil, which is known and appreciated in saponification for increasing the washing and foaming power of the soaps. Castor oil increases the creaminess and lathering.

High quality oils and powders


Different oils and butters such as babassu, cherry seed, tucuma, cocoa butter, shea butter, plant powders such as althaea powder, flax powder, spirulina and mineral powders such as white clay or yellow clay are added in relation to the anti-oxidant, anti-ageing, calming, protective and moisturising properties they add.

Foaming and nourrishing soaps


After removal from the mould and before being used, a "cure" period of at least 4 weeks allows the saponification process to be completed and the soap to harden and dry. In general, a longer cure time improves properties such as the soap's longevity and foaming power. The cure time at Hyangsu Cosmetics is between 6 to 8 weeks.

100 % natural ingredients

We only use natural ingredients (plant and mineral). Our products are guaranteed to be free of artificial ingredients or transformation processes that are harmful to the environment.

Tested and approved

Once our recipes are finished, they are tested and approved by a certified chemist according to the European laws regarding handmade cosmetics.

Free of stabilisers

Our soaps are alive. Without stabilisers, the colour of our soaps can change over time. However, this does not change their properties.