Shampoos safety ratings.

How to use this category page.

Start with the best-scoring products, then inspect individual source rows before switching products. Category-level comparisons are especially useful when an exact product is missing or when brands use similar packaging and processing methods.

For shampoos, the strongest decision comes from comparing concern level, source quality, test year, and product context together. Small categories are still useful because they preserve a crawlable evidence trail for specific exposure routes, while larger categories help identify patterns across brands. Treat missing or old evidence as a reason to request updated disclosure instead of assuming the product is lower concern.

Use the listed products as the current review set for this category.