All essays, page 13 of 106

Shampoo bar manufacturing, page 13

Process notes, formulation choices, quality checks, and packaging thinking for solid hair-care products.

Cold Process Shampoo Bars Don’t Exist

If you have spent any time around handmade hair care, you have probably seen the phrase “cold process shampoo bar” used as if it were a completely normal...

Stop Treating Clay Like Cocoa Powder

I've lost count of how many times I've seen a beautiful clay shampoo bar turn into a cracked, latherless mess a week after unmolding. And almost every time,...

The Water Hardness Lather Problem

You've run every test in the book. The bars lather beautifully in your facility, your team gives them the thumbs up, and the first round of customer reviews...

How to test shampoo bar mildness on skin?

Testing a shampoo bar for skin mildness means asking one core question: Does this bar cleanse without disrupting the skin barrier, causing irritation, or...

The Five-Ounce Problem

If you've ever priced a shampoo bar, you've probably heard this line: "My ingredients cost $0.35 an ounce." It's a comforting number. It's also, in most...