Cold vs Hot Process Shampoo Bars? You're Asking the Wrong Question
Ask a group of handmade cosmetics makers whether cold process or hot process makes the better shampoo bar, and you'll get some very strong opinions. I've...
All essays, page 29 of 106
Shampoo bar manufacturing, page 29
Process notes, formulation choices, quality checks, and packaging thinking for solid hair-care products.
How to make shampoo bars with a long-lasting fragrance?
Making a shampoo bar with a scent that survives both the curing rack and the shower requires a combination of the right base, fragrance materials,...
Shampoo Bar Ricing Fix: How to Read a Grainy Batch and Rescue It Without Guesswork
If you make shampoo bars long enough, you will eventually meet a batch that looks as though it has lost its composure. What began as a smooth, workable paste...
The "No-Lye" Shampoo Bar Myth, Debunked
I get some version of this email every few weeks: "Can you send me a shampoo bar recipe without lye?" Nine times out of ten, the person asking just wants to...
The Shampoo Bar pH Blind Spot
Let me guess. You adjusted your shampoo bar to pH 5.5 in a beaker, called it balanced, and moved on with your life. I hate to break it to you, but that...
What are the best packaging materials for shampoo bars?
Shampoo bars are popular because they cut down on plastic waste, but their packaging still matters. The best packaging protects the bar from moisture, keeps...
What Your Shampoo Bar Supplier Isn't Telling You
Walk into any wholesale sourcing conversation and you'll hear the same five questions on repeat: What's the MOQ? Can we private label? What do the pricing...
Why a Daily-Use Shampoo Bar Has to Be Built Differently
People often talk about shampoo bars as though they are simply bottled shampoo with the water removed. From a manufacturing standpoint, that is not how...
How to source sustainable and ethical ingredients for shampoo bars?
Sourcing sustainable and ethical ingredients for shampoo bars is about more than swapping one oil for another. It requires a clear sourcing policy, honest...
The Cure-Time Cash Trap
If you've been around shampoo bar circles for any length of time, you've seen the same conversations repeat-recipes, pH strips, which mold to buy. But after...