The Best How Often Should You Cut Long Hair Ideas. But the rule of thumb is every six to 12 weeks. Web every six to eight weeks.

Here's how to know when it's really time for a trim. Web for naturally wavy or curly hair, 6 to 12 weeks between cuts should suffice if no damage, color or chemical treatments are involved. It may seem counterintuitive, but getting your hair cut more frequently will likely result in longer hair since you prevent the.