Scalp & dandruff
Why scalps flake and itch, how anti-dandruff ingredients work, and where conditioner belongs.
Hair loss and scalp health: what’s connected and what isn’t
Normal shedding, stress-related shedding, pattern hair loss and inflamed-scalp conditions explained, plus why washing your hair doesn’t make it fall out.
Scalp sunburn: the burn people forget
Why your part line, crown and thinning spots burn so easily, how to protect your scalp with hats and sunscreen, how to soothe a burned scalp, and why scalp skin checks matter.
Dry shampoo and your scalp: handy, but not a real wash
What dry shampoo actually does, why it can’t replace washing, how build-up can irritate your scalp, and what the aerosol benzene recalls in Canada and the US were about.
How often should you wash your hair? What your scalp actually needs
There’s no single right number. Here’s how scalp oil, hair texture and dandruff should shape how often you shampoo, and what the limited research on wash frequency found.
Itchy scalp: the usual suspects and how to tell them apart
An itchy scalp can come from dandruff, dryness, product residue, a hair-dye allergy, psoriasis or lice. Here are the clues for each one and what to do next.
Scalp care for textured, curly and coily hair
How often to wash curly and coily hair, how to treat dandruff without drying your hair, what scalp oils can and can’t do, and how to spot hair loss from tight styles early.
Does conditioner belong on your scalp?
Conditioner is built to coat hair fibres, not skin. Why most of it should stay on the lengths, when a scalp-friendly conditioner makes sense, and how to avoid build-up.
Scalp psoriasis: thick scales that aren’t dandruff
How to tell scalp psoriasis from dandruff, why it often spreads past the hairline, what treatments exist from shampoos to prescriptions, and when to see a doctor.
Zinc pyrithione: how the classic anti-dandruff ingredient works
Zinc pyrithione has been in anti-dandruff shampoos since the 1960s. How it slows the scalp yeast behind dandruff, why contact time matters, and where regulators stand.
Dandruff, seborrheic dermatitis, psoriasis or just a dry scalp?
Flakes can come from four different things. Learn the clues that separate dandruff, seborrheic dermatitis, scalp psoriasis and plain dry skin, and when to get checked.
Dandruff: why your scalp flakes, and what’s really behind it
Dandruff isn’t dirt and it usually isn’t dry skin. It comes from a yeast that lives on everyone, scalp oil, and how your own skin reacts. Here’s what the research says.