All essays

Shampoo bar manufacturing

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

Use the Saponification Calculator Backwards

If you've ever made a shampoo bar by plugging oils into a lye calculator and calling it done, you've probably heard the same complaints from customers: waxy...

Why Your Shampoo Bar Won’t Leave the Mold

If you've ever stood over a cooling rack with a freshly poured shampoo bar and wondered why it's clinging to that silicone mold like it owes rent, you're...