All essays

Shampoo bar manufacturing

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

Tea Tree Oil Is Breaking Your Shampoo Bar

Let's be honest: most of what you read about tea tree oil in shampoo bars is the same recycled bullet list. It's natural. It's antibacterial. It refreshes...

The Castor Oil Problem in Shampoo Bars

You've probably felt it: you pull a "moisturizing" natural shampoo bar out of the shower, and instead of clean hair, you've got something that feels vaguely...