Which product is best for an oily scalp?

For oily roots, look at the Kérastase Specifique Bain Divalent or L'Oréal Scalp Advanced Anti-Oiliness Shampoo. The Specifique Argile Equilibrante and the L'Oréal Anti-Oiliness Clay Mask are pre-shampoo clays for heavier oiliness. Our oily scalp guide goes into which works for which hair type.

What should I use for a sensitive or uncomfortable scalp?

Kérastase Specifique Bain Vital Dermo-Calm is a gentle shampoo for sensitive scalps. The L'Oréal Scalp Advanced Anti-Discomfort Treatment is a leave-on step for scalps that feel tight or reactive. If you have persistent itching, redness, soreness or flaking, see a GP or dermatologist first so you know what's going on.

How often should I use a scalp clay mask?

Once a week is a good starting point. Apply to the scalp before shampooing, leave it as directed, then rinse and wash. If you're very oily you might go twice a week. Keep clays off dry or lightened lengths, as they can feel drying on the ends.

What does a scalp serum do?

A scalp serum is a leave-on treatment applied directly to the scalp. The L'Oréal Scalp Advanced Anti-Oiliness Serum targets oil between washes. The Kérastase Nutritive Nutri-Supplement Scalp Serum is for scalps that feel dry. Part your hair in sections, apply to the scalp and massage in. Don't rinse.

Is this kit for dandruff?

Not really. This kit is for oily, sensitive or dry scalps. For flakes, look at the Kérastase Symbiose range, which Kérastase made for dandruff. Our itchy, flaky scalp guide has more. If flaking doesn't improve, see your GP or a dermatologist.