Hair & Scalp Concerns
Oily Scalp: causes & the ingredients that actually work
Greasy roots within a day of washing. Below we explain what causes it, which ingredients have real evidence behind them, and the products we recommend (top picks are being added soon).
Premium & budget picks for oily scalp — coming soon
We're reviewing formulas and ingredient lists for this concern. Until then, look for products built around Salicylic Acid, Zinc Pyrithione and Tea Tree Oil.
Understand it
What causes oily scalp?
- Overactive sebaceous glands
- Heavy oils and conditioners on the scalp
- Hormones and humidity
Look for
Ingredients that work for oily scalp
- Salicylic Acid (BHA)
Oil-soluble exfoliant that gets inside pores to dissolve sebum and dead skin that cause clogs.
- Zinc Pyrithione
Anti-fungal, anti-bacterial agent widely used in anti-dandruff shampoos.
- Tea Tree Oil
Natural antibacterial that can calm mild breakouts and fungal irritation.
- Niacinamide (Vitamin B3)
Balances oil, strengthens the skin barrier, calms redness and fades dark marks.
FAQs
Oily Scalp — common questions
What causes oily scalp?
Common causes include: overactive sebaceous glands, heavy oils and conditioners on the scalp and hormones and humidity.
Which ingredients work best for oily scalp?
Look for Salicylic Acid, Zinc Pyrithione, Tea Tree Oil and Niacinamide. Salicylic Acid: Oil-soluble exfoliant that gets inside pores to dissolve sebum and dead skin that cause clogs. Zinc Pyrithione: Anti-fungal, anti-bacterial agent widely used in anti-dandruff shampoos.
When should I see a dermatologist for oily scalp?
If it is severe, painful, spreading, or hasn't improved after 6–8 weeks of consistent care, see a board-certified dermatologist. Prescription treatments may be needed.
This guide is for general information and isn't a substitute for advice from a dermatologist. Patch-test new products, and avoid strong actives during pregnancy unless your doctor approves.