Best Shampoo Bar 2026: 7 Top Picks for Plastic-Free Hair
A shampoo bar is a solid, concentrated hair cleanser that replaces liquid shampoo and its plastic bottle, using surfactants or saponified oils to lift dirt and oil from hair and scalp without added water. If you have ever stood in the shower holding a nearly empty bottle of shampoo, squeezing it sideways to coax out … Read more