Soap & Handmade3 min read
Sodium or Potassium Hydroxide: How Each Names Your Soap
Bar soap and liquid soap are chemically different salts, and that difference changes what actually belongs on your INCI declaration.
July 6, 2026Read
Tagged saponification
INCI Names & CAS Numbers4 min read
Lye on the Label: Sodium Hydroxide INCI for Soap Makers
Whether saponified soap should declare sodium hydroxide, the fatty acids, or the resulting sodium salts, explained for filing purposes.
July 3, 2026Read
Soap & Handmade4 min read
Saponification Basics Every Soap Labeler Should Know
The chemistry of saponification explained only as far as it changes what belongs on a compliant cold process soap ingredient list.
June 30, 2026Read
Soap & Handmade4 min read
How Superfat Shows Up on a Cosmetic Ingredient List
Why leftover unsaponified oils from superfatting a soap batch need to be reflected honestly on the INCI list and concentration ranges.
June 26, 2026Read
Ingredient Guides4 min read
Coconut Oil (Cocos Nucifera) INCI and CAS for Soap Makers
How to list coconut oil correctly on an INCI declaration, its CAS number, and how saponification changes what you write.
June 24, 2026Read
Soap & Handmade4 min read
Sodium Tallowate or Sodium Palmate on Your Soap Panel
A breakdown of which saponified-oil INCI name goes on your soap label depending on the fat you actually used, tallow, palm, or coconut.
May 31, 2026Read
Ingredient Guides4 min read
Potassium Hydroxide in Liquid Soap: Filing the Saponified Result
How potassium hydroxide's role in liquid and paste soap gets declared on a notification once saponification is complete.
May 20, 2026Read
Soap & Handmade4 min read
How to List Saponified Oils on a Soap Ingredient Panel
Sodium olivate or Olive oil and lye? A clear rule for listing saponified oils correctly on a soap label or filing.
May 10, 2026Read
Prohibited & Restricted4 min read
Sodium Hydroxide and the Hotlist: What Soap Makers Ask
Lye disappears in a properly saponified bar, but that does not mean sodium hydroxide is irrelevant to your filing.
May 4, 2026Read
Soap & Handmade4 min read
From Lye Calculator to a Compliant Soap Label
How the oils and lye a calculator spits out actually turn into the INCI ingredient list and declarations your soap label needs.
April 17, 2026Read
Soap & Handmade4 min read
Should Water Appear on Your Soap Ingredient List
Whether the lye-dissolving water needs its own Aqua line on a soap label depends on whether your bar is true soap or a cosmetic.
March 19, 2026Read
Soap & Handmade4 min read
Do You List Lye and Sodium Hydroxide on a Soap Label
Clears up the common confusion over whether sodium hydroxide belongs on a soap label once saponification has consumed it.
March 8, 2026Read
Soap & Handmade4 min read
Writing the Ingredient List for a Pure Castile Bar
A single-oil olive castile bar is the simplest possible ingredient panel, which makes it a clean template for getting INCI listing right.
March 7, 2026Read
Soap & Handmade4 min read
Do You List the Glycerin Your Soap Makes Itself
Cold process soap produces glycerin as a natural byproduct of saponification. Whether that counts as an ingredient you declare comes down to what it actually is in the finished bar.
February 19, 2026Read
INCI Names & CAS Numbers4 min read
Reading the Full INCI of a Melt and Pour Soap Base
How to decode a long melt and pour soap base INCI string and account for the colors and scents you add on top.
January 9, 2026Read