Surfactants are what make cleansers clean: molecules that grab oil on one end and water on the other, so grime rinses away. Sodium lauryl sulfate (SLS), sodium laureth sulfate (SLES), cocamidopropyl betaine, and dozens of gentler options.
The sulfate question, honestly: sulfates aren’t dangerous. They’re just efficient: sometimes too efficient, stripping oil your skin wanted to keep. Tight, squeaky skin after cleansing means your cleanser is too strong, sulfate or not. “Sulfate-free” matters most for dry skin, sensitive skin, and chemically treated or curly hair. For everyone else it’s preference, not safety.
The BYOUT Library is educational content, not personalised medical advice. For persistent or severe skin concerns, a dermatologist beats any article, including ours.