Beat Hard Water at the Bench
Every shampoo bar maker gets the same emails eventually. “My hair feels waxy.” “It left a weird coating.” “My hair is dull and tangly.” Nine times out of...
All essays, page 2 of 106
Shampoo bar manufacturing, page 2
Process notes, formulation choices, quality checks, and packaging thinking for solid hair-care products.
How to scale up shampoo bar production from small batch to commercial?
Scaling up shampoo bar production from a kitchen or studio batch to commercial quantities is not simply multiplying your recipe by 100. Heat transfer,...
What are the common mistakes in cold process shampoo bars?
Cold process shampoo bars are a fun and genuinely useful product, but they are not simply “body bars with a hair fragrance.” Many makers start with a...
Why Shampoo Bar Co-Washes Fail
Ask most people what makes a good shampoo bar co-wash and they'll fixate on one thing: does it lather? That's the wrong place to look. A solid co-wash bar...
How to prevent mold growth in handmade shampoo bars?
Mold growth in handmade shampoo bars is almost always the result of three things coming together: moisture, organic nutrients, and time . Shampoo bars are...
The Conditioner Bar Is Your Best QC Tool
If you make solid shampoo and conditioner bars, I'd bet you test them separately. Almost everyone does. And that's exactly why so many "perfectly good" bars...
Two Phases, One Bar
Let’s be honest: most shampoo bar recipes you’ll find online are just soap recipes wearing a lab coat. They list oils, toss in some SCI or SCS, add a...
What is the best way to cut shampoo bars for uniform size?
The best way to cut shampoo bars for uniform size depends on your batch size and equipment, but the core principle is the same: control the loaf dimensions...
Can I make shampoo bars without any preservatives?
Yes - you can make shampoo bars without preservatives, but only when the formula is genuinely anhydrous , meaning it contains no water or water-based...
How to create a custom fragrance blend for shampoo bars?
Creating a custom fragrance blend for shampoo bars is one of the most rewarding parts of formulating. It is also a balance of art and safety: you want a...