Face & Skin Concerns
Sun Tan: causes & the ingredients that actually work
Darkened skin on face, arms and neck after sun exposure. 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 sun tan — coming soon
We're reviewing formulas and ingredient lists for this concern. Until then, look for products built around Modern UV Filters, Vitamin C and Glycolic Acid.
Understand it
What causes sun tan?
- UVA and UVB exposure
- Skipping or under-applying sunscreen
- Not reapplying outdoors
Look for
Ingredients that work for sun tan
- Modern UV Filters
Photostable filters (e.g. Tinosorb, Uvinul) that give high UVA + UVB protection without white cast.
- Vitamin C
Antioxidant that brightens, fades dark spots and protects against sun damage.
- Glycolic Acid (AHA)
Small-molecule exfoliant that resurfaces dull, rough skin and evens tone.
- Licorice Root Extract
Natural brightener with anti-inflammatory benefits for spots and redness.
FAQs
Sun Tan — common questions
What causes sun tan?
Common causes include: uVA and UVB exposure, skipping or under-applying sunscreen and not reapplying outdoors.
Which ingredients work best for sun tan?
Look for Modern UV Filters, Vitamin C, Glycolic Acid and Licorice Root Extract. Modern UV Filters: Photostable filters (e.g. Tinosorb, Uvinul) that give high UVA + UVB protection without white cast. Vitamin C: Antioxidant that brightens, fades dark spots and protects against sun damage.
When should I see a dermatologist for sun tan?
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.