Natural remedies for acne prevention: what works, what doesn’t

Almost every acne patient has tried something from the kitchen or the health shop before they see us. Some of those things help a little, some do nothing, and a few make skin worse. Here is what the evidence says.

Tea tree oil

Of the natural options, tea tree oil has the most research behind it. Studies of a 5% gel in mild to moderate acne show fewer spots, though it works more slowly than benzoyl peroxide. It can cause dryness and, in some people, contact allergy, so patch test first and never use it undiluted.

Zinc

Oral zinc has been studied for acne with mixed results, and higher doses commonly cause stomach upset. It may help some people, but it should not replace a proven treatment, and you should not take high doses without advice.

Honey and other kitchen remedies

Honey is a gentle humectant and feels calming on irritated skin, but there is little good evidence that it clears acne. Lemon juice, toothpaste and baking soda are best avoided: they upset the skin's pH and can burn or leave dark marks.

Does diet matter?

Research links diets high in sugar and refined carbohydrates, and in some studies skim milk, with more acne. The effect is modest and varies from person to person. A balanced diet is sensible, but food alone rarely clears moderate acne.

What works reliably

• Benzoyl peroxide and topical retinoids such as adapalene for most mild to moderate acne.
• Azelaic acid, which also helps post-acne marks and is gentle on sensitive skin.
• Prescription treatment from a dermatologist for cystic, painful or scarring acne.

If acne is leaving marks or scars, or has lasted more than a couple of months despite good habits, early treatment protects your skin. We can usually build a plan in one visit.