Best sunscreen (please use name brand) for everyday? For swimming or beach walking? History of multiple squamous cell carcinoma.

NO ENDORSEMENTS HERE. You should be using a sunscreen with an spf of 30. There's really no benefit from anything higher. There are a multiple commercial choices you can make, so choose whichever appeals to your senses and pocketbook. You keep your skin covered in direct sunlight, and that includes long sleeves and a hat. See your doctor or dermatologist regularly, and good luck.
Zinc,Titanium oxide. With a history of skin cancer, it is imperative to protect your skin at all times when outdoors. A sun block containing either zinc oxide or titanium oxide or both is mandatory (neutrogena sports). Also anthelios which contains mexoril a very powerful protective agent.