What are the best hair care products for women—especially if your scalp and strands need different things?

The most effective routine starts at the scalp (skin) and supports hair from root to ends with targeted hydration, gentle cleansing, and consistent treatments.

Build a scalp-first system for your hair goals.
How do I know if I need hydration or clarifying?
Can I use a scalp serum if I wash infrequently?
What’s the easiest routine to start with?