Natural soaps tend to sweat during humid weather. It is because your natural soap has a generous amount of glycerine in it. All this glycerine is formed during soap making and adds amazing benefits to the soap. It is this skin loving glycerine from natural soaps that forms a layer on your skin and keeps it hydrated by moisturizing and preventing drying of the skin.
Why does Glycerine behave so?
Glycerine is a humectant. A humectant is a substance that draws out moisture from the humid atmosphere. Being a humectant lends Glycerine it’s most sought after moisturizing property and makes it a valuable component of top-notch beauty concoctions. In commercial soaps, this glycerine is removed during soap-making process and is used in other expensive formulations. This is why commercial soaps cause dry skin.
When a soap bar containing glycerine or other humectants sits exposed in humid environment, it draws out moisture from its surroundings which collects on its surface.
So, is it okay?
It is a completely normal phenomenon like condensation. All that moisture is not oozing out of your soap and it is not going bad or drying out. Soap sweating is thus a natural incident and there is nothing wrong with the soap per se. It is in fact an indicator that your soap has ample amount of glycerine and your skin will love it.
There are other natural additives too which are humectants like salt honey , castor oil etc. Soaps that have these ingredients also sweat a lot during rainy season. Due to sweating of the soap, the packaging may also look all crinkled and soggy, but rest assured, your soap is perfectly fine.
How can I prevent it?
Keep your soap in a cool and dry place, preferably in a soap box with a lid. Go ahead and treat yourself to that cool and chic soap box, another reason to love your natural soap collection!