How to make shampoo bars that condition hair?
To make a shampoo bar that actually conditions hair, you need more than oils and butters. True conditioning comes from pH-balanced synthetic detergent...
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Shampoo bar manufacturing, page 4
Process notes, formulation choices, quality checks, and packaging thinking for solid hair-care products.
How to make shampoo bars with silk proteins?
Silk proteins are a popular addition to solid shampoo bars because they can leave hair feeling smoother, add shine, reduce static, and improve wet combing....
The Dry-Down Deficit
I once watched a formulator tear his hair out over a syndet shampoo bar that tested beautifully in the lab-perfect pH, gorgeous foam, nice hard bar-then...
The Shampoo Bar Glycerin Trap
Ask most formulators how much glycerin is in their shampoo bar, and they'll point to a line on the batch sheet. Maybe it says 3%. Maybe 5%. But here's the...
How to formulate shampoo bars for different hair types?
Formulating shampoo bars for different hair types is not a one-size-fits-all process. The key is to start with a gentle, pH-balanced solid surfactant base...
How to make shampoo bars that are plastic-free?
A plastic-free shampoo bar is a solid, waterless cleanser that replaces liquid shampoo in a plastic bottle. Making your own lets you control the...
Stop Blaming the Formula: It’s the Mold
Most people choose silicone molds because bars release easily. I understand the appeal. But after years in syndet shampoo bar manufacturing, I can tell you...
The Hidden Flaw in Daily-Use Shampoo Bars
Most brands think a daily-use shampoo bar is just a gentler version of their regular formula. Lower the cleansing, toss in a bit more shea butter, maybe...
How to add color to shampoo bars naturally?
Adding natural color to shampoo bars is very doable, but it is a different game from using synthetic dyes. Natural colorants tend to be softer, earthier,...
How to make shampoo bars that are biodegradable?
Making a biodegradable shampoo bar is absolutely possible, but it requires more than simply swapping a liquid for a solid. Biodegradability depends on the...