Skip to product information
1 of 2

Essentially Natural

Essentially Natural Caustic Soda Lye (Sodium Hydroxide)

Essentially Natural Caustic Soda Lye (Sodium Hydroxide)

Regular price R 69.00
Regular price Sale price R 69.00
Liquid error (snippets/price line 157): divided by 0 Sold out

14 in stock

INCI: Sodium hydroxide

Caustic Soda, or lye, is an alkali used in soap making. It is also known as sodium hydroxide and has the chemical formula of NaOH. Lye reacts with the fats in oils to produce an opaque or cloudy, hard soap. It is all consumed in the chemical reaction and none remains once soap is produced.

Size: 500g, 1kg or 5L (4kg).

Why we love lye: it is used to make soap! Find all our beautiful soap recipes and soap making inspiration here: Soaps

This product is certified: Vegan and Beauty Without Cruelty.

Sodium Hydroxide

98.5% minimum purity.

SDS available for download here

COA available for download here

Note: A Certificate of Analysis (COA) is a document sharing the outcomes of a scientific test. It helps us verify that a product meets the specified standards. These tests are conducted on product batches, so slight variations in results between different batches are normal. If the batch number on this COA doesn't match the one on the product you bought from us, please get in touch with us. This is just one recent instance. Feel free to reach out if you have any questions or concerns.

  • Always wear protective clothing when working with caustic soda
  • Avoid skin or eye contact
  • Avoid inhalation or ingestion
  • Can cause severe burns
  • If skin or eyes are contacted flush with water for 15 minutes
  • NB - This is not a food grade product and is not suitable for making food stuff.
  • This natural product is for external use only. Please exercise caution and do not ingest or take internally. Store away from children, animals, sunlight and heat. If pregnant or breastfeeding, please consult with your medical care-giver before use.
View full details

Customer Reviews

Based on 43 reviews
95%
(41)
5%
(2)
0%
(0)
0%
(0)
0%
(0)
J
Janine Loynes
Caustic Soda delivery

As a first time customer, the delivery was quick and was excited to find a little gift neatly packaged inside :) I’m excited to try my product and make many holiday soaps 👌🏼

T
Tenele Dlamini
Lye solution

The delivery was smooth and quick ,Essentially natural's ,communication was prompt and effective. The product itself it excellent , packaged well and well labeled I was able to make lovely products thanks to this product will definitely be purchasing soon!

W
Wendy Truter

Great texture does what it must perfectly

W
Winstonia Beckwitz
Fast delivery

Delivery was fast and the product works wonders thank you so much

C
Christina Rohl
So happy

I'm so happy to have found lye at my favourite supplier! Now I don't have to search around every time I run out. It emulsifies my soaps well and I will definitely stick with this one.