What should you check on the label?

Read the exact product's ingredient list and choose accordingly. If you know you react to fragrance or preservatives, check whether they appear on the label. Brand names are memorable; ingredient lists do the less glamorous paperwork.1

How should you apply it?

As general sunscreen guidance, choose a broad spectrum sunscreen with SPF 30 or higher. Apply it to dry skin 15 minutes before going outdoors, then reapply every two hours while outdoors. Reapply after swimming or heavy sweating as well.23

How much La Roche Posay Anthelios sunscreen should you use?

As a general face only reference, use about a nickel sized dollop.2

Is La Roche Posay Anthelios good under makeup?

Apply sunscreen before makeup.3

Skin care products can cause stinging, burning or skin inflammation; allergic contact reactions are less common. If skin inflammation persists, seek medical advice because persistent reactions can need treatment.4

Where this answer comes from

  1. 1Does Powder Sunscreen Actually Work?health.clevelandclinic.org
  2. 2Skin Cancerhealth.harvard.edu
  3. 3Do Eyelids, Lips and Feet Need Sunscreen?health.clevelandclinic.org
  4. 4Common skin lesions. Topical treatment of photodamagedermnetnz.org