Skip to content

Making Soap Naturally

Professional recipes and advice about everything soap!

Menu
  • HOME
  • SCENTS
    • antibacterial essential oils list
    • are perfumes toxic?
    • How to use Essential Oils
    • Cedarwood Essential Oils
    • Essential Oil Blends
    • Frankincense Essential Oil
    • Lavender Essential Oil
    • Rosemary Essential Oil
    • Tea Tree Essential Oil
  • SOAP BASES
    • Basic Soap Recipes – my 6 at a glance
    • #1 – Olive and Coconut, No Palm
    • #2 – Olive, Coconut and Palm
    • #3 – Olive, Coconut & Palm Kernel
    • #4 Olive, Coconut, Palm & Less Water
    • #5 Olive, Coconut, Palm Kernel & Less Water
    • #6 Castile, Just Olive
  • THE SOAPS
    • Baby Soap
    • Beer Soap
    • Castile Soap
    • Charcoal Soap
    • Coffee Soap
    • Dead Sea Mud Soap
    • Gardeners Soap
    • Green Mint Tea
    • Grocery Store Soap
    • Laundry Soap
    • Melt and Pour
    • Pet Shampoo
    • Recycle Bar Soap Pieces
    • Salt Soap
    • Shampoo Bar
    • Simple Halloween Recipe
  • BATH AND BODY
    • Bath Bombs
    • Bath Salts
    • Face Mask
    • Hemp Butter
    • Lip Balm
    • Lotion Bar
    • Whipped Shea Butter
  • SOAP SUPPLIES
    • Supplies you will need
    • A Great Place to Buy Soap-Making Supplies
    • Digital or Electronic Scale
    • Escali 136DK Alimento Digital Scale Review – To Weigh your Soap Making Oils
    • Thermometers
    • Soap Boxes
    • Soap Making Books
    • Where to buy soap making supplies
  • INGREDIENTS
    • Properties of Soap Making Oils
    • Shelf Life of Oils
    • Apricot Kernel Oil
    • Canola Oil
    • Castor Oil
    • Hemp Seed Oil
    • Neem Oil
    • Olive OIl
    • Palm Oil
  • FAQ’S
    • Craft Fairs and Festival
      • Christmas Craft Fair – just some thoughts as I’m packing
      • The Farmers Market – Selling your Soap
      • Trade shows
    • How to Pick a Business Name
      • Naming your Soap Company – what is a good name?
    • How much does it cost to make soap?
    • INCI Names
      • What is INCI
    • Labeling the Eco-Friendly Way
      • Organic and Natural Product Labelling Rules
    • Proper storage of the Natural and Handmade Soaps
    • Regulations for Hand made soap
      • Important Product Knowledge
    • Wholesale Handmade Soap or Sell it yourself?
    • Craft Fairs and Festivals – what do I need?
  • Baby Skin Care
    • Baby Soap Recipe
    • Baby Powder Recipe
    • Natural Baby Products
    • Vaseline (nonpetroleum) Recipe
Menu

Sodium Lactate and Soap

Posted on 02-1803-06 by Tes

What is Sodium Lactate

Sodium lactate and soap

Sodium Lactate is the salt of lactic acid, it is produced by fermenting a sugar source such as corn or beets.  It is a liquid but also comes in powder form as well where it is often used as a preservative in food.

Sodium Lactate as a food preservative

Sodium lactate is a replacement for chemical preservatives such as sodium benzoate and potassium sorbate. It is used as a food preservative because the salt acts as a preservative which prevents bacteria and fungus from growing.

Cosmetic Industry

Sodium lactate is also used in the cosmetic industry in lip balms, face cream, shampoos, lotions and eye drops.  It is used in these products as a preservative, but also as an a ph controlling agents.

Sodium lactate is found in our skin and also acts as an effective humectant, helping to balance the moisture in our skin.

Although sodium lactate is said to be free of side effects, it is not recommended for infants and young children.

It also can make your skin sun sensitive so when using this product make sure you don’t over do it.

Sodium Lactate Soap Making

Sodium lactate is used in soap making to produce a harder long lasting bar of soap.

In the soap making process, sodium lactate is added to the lye/water solution once the temperature is below 54 degrees Celsius.

Sodium Lactate for Soaps and Lotions

The recommended amount to use is about 1 tsp per pound of oils.  If you use too much your soap may become brittle and crack or crumble, but using it with soap recipes that are higher in soft oils will help your bar harden and keep it from becoming sticky.

Note: it will often slow the trace process so can be beneficial for using with scents that trace quickly.

When using in a lotion, simple replace the liquid glycerin with sodium lactate, some studies say that sodium lactate is a better moisturizer than glycerin in the short and long term.  It isn’t as sticky as glycerin so depending on your recipe it may make a noticeable difference.

I don’t use this product as I feel the recipe I have formulated over the years has the right combination of oils to create a hard bar that does not melt away.  So there is no need to add it, but if you are making a soap using soft oils it can be a benefit in helping your soap become harder as well as getting it out of the molds easier.

This fermented sugar source can be used as a preservative, a moisturizer, ph balancer and soap hardener.  It is a natural product that is considered safe to use for food and skin care products.

Harry Potter

© 2017 – 2022, Tes. All rights reserved.

7 thoughts on “Sodium Lactate and Soap”

  1. Martina says:
    02-19 at 1:15 am

    The process of making soap is so.fascinating! I have been tempted to give it a try but I have been a little intimidated by the process (sounds like something could go wrong and quickly if rules are not followed exactly, which is scary!) Due you have a simple recipe you would recommend for someone who is new to this?

    Reply
    1. Teresa says:
      02-19 at 4:34 am

      Hi Martina, it really isn’t as scary as it sounds. I have a page with recipes you can try and step by step instructions on how to make soap. I have provided the links to both pages below for you.

      Recipes

      Make Natural Soap at Home -Step by Step instructions with pictures

      Reply
  2. K says:
    08-17 at 11:19 am

    Great info!

    Reply
    1. Tes says:
      09-02 at 9:17 pm

      Thanks

      Reply
  3. Joanna says:
    03-12 at 3:44 pm

    Hello, I’ve never soaped with SL but I just ordered some and wanted to try to add to softer bars that I like a lot, but are not as hard. My question is, if SL speeds up the trace like salt does? If I plan to make softer oils design soap, can I count on not tracing to quick?
    Thank you!
    Joanna

    Reply
    1. Tes says:
      03-06 at 3:15 pm

      Hi Joanna, The sodium lactate is used often to help soap with hardness, but it doesn’t speed up trace, it actually slows it down which can be good in some cases.

      Reply
  4. Anne says:
    03-19 at 5:07 am

    Hey, Ive been wondering why it makes soap harder? What is the chemistry behind it? Do you know?

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Share

  • Trending Natural Soap Ingredients & Sustainable Practices In 2025
  • Eucalyptus Essential Oil
  • DIY Baby Lotion Recipe (Gentle & Natural)
  • 🎄 Christmas Soap Recipes
  • Oatmeal Honey Soap Recipe (Cold Process & Melt & Pour)
  1. Tes on Trending Natural Soap Ingredients & Sustainable Practices In 202509-08

    Thank you so much—I’m glad you enjoyed it! I’ve been experimenting with a few of these trends, and the one…

  2. Hanna on Trending Natural Soap Ingredients & Sustainable Practices In 202509-06

    I really enjoyed reading your post—it’s so inspiring to see how natural soap making is evolving in 2025! I love…

  3. Tes on DIY Baby Lotion Recipe (Gentle & Natural)09-01

    This lotion is mild and should be fine for sensitive skin.  You could cut the recipe in half for a…

  4. Alexa on DIY Baby Lotion Recipe (Gentle & Natural)08-28

    As a first-time mom, I’ve been extra cautious about what I put on my toddler’s skin, especially since he’s had…

  5. Tes on Oatmeal Honey Soap Recipe (Cold Process & Melt & Pour)08-27

    Hi yes I do notice a difference on my skin.  I used to get excema really bad and now I…

200x400

Share

  • Privacy Policy

Recent Posts

  • Trending Natural Soap Ingredients & Sustainable Practices In 2025
  • Eucalyptus Essential Oil
  • DIY Baby Lotion Recipe (Gentle & Natural)
  • 🎄 Christmas Soap Recipes
  • Oatmeal Honey Soap Recipe (Cold Process & Melt & Pour)

Making Soap Naturally is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com

©2018 Making Soap Naturally

© 2025 Making Soap Naturally | Powered by Superbs Personal Blog theme