Best SUNBLOCK: wear dark, thicker clothing, floppy hat,, or sun clothing embedded with UPF 50, or umbrella (which protects you up to 80% of the UV rays that cause sun damage penetrate clouds, according to the EPA).. They were invented to protect us from the elements without chemicals. Your hair suffers also, so cover your hair before leaving the house. Use hats, scarves, bandanas or umbrella to protect your hair from harmful rays.
If you're over 30, and you've got freckles, moles, permanent discolorations on your skin, or any skin disease from sun damage: 25% of the sun damage occurs by age 18.
Sunblock will not protect you from getting burned.
Sunblock will only make your moles or freckles larger, bumpier & darker, if you have them already. Not just moles, but freckles, skin tags, seborrheic keratoses, Discoid Lupus, Bullous Pemphegoid, Lentigo (Google search them) and lentigines -- nearly always non-cancerous skin lesions
Sunblock will not protect you from skin cancer.
Sunblock will not protect you if you have allergies, I never thought I had allergies!
Sunblockdiscolor your skin - for ever!
Sunblock blocks Vitamin D.
Sunblock also is flammable after it is on your skin. A Massachusetts man said he suffered second-degree burns from a grill after applying sunscreen aerosol spray on parts of his body.
But I had Discoid Lupus caused from the sun. Google it. Took 12 years for mine to almost 'fade'. I don't want any more lupus appearing on my skin, so now I'm more & more into protecting myself. Bullous Pemphegoid is another skin disorder. Google that, too!
If you're applying man-made products to your skin, you're APPLYING CHEMICALS TO YOUR SKIN, you still get MELANOMA. The best sunscreen I have is the umbrella, also man-made but without chemicals . .