Is Olaplex No. 4 worth $34 if my hair isn't badly damaged?

Reviewers are split. People with chemically processed, bleached, or heat-damaged hair tend to call it transformative, while users with healthy fine hair frequently report it feels too rich, weighs hair down, or over-proteins their strands over time. If your hair is undamaged, a less intensive sulfate-free shampoo is usually a better starting point.