The best body sunscreen is the one you will apply generously and reapply. The amount matters more than any number on the bottle.
By Sawyer V. · Published September 10, 2026 · Last updated September 10, 2026
The short answer
Choose a broad-spectrum sunscreen of SPF 30 or higher, water resistant if you will swim or sweat, in a texture you like enough to use generously. Most adults need about an ounce — a shot glass — to cover exposed skin, reapplied every two hours outdoors and after swimming or sweating.
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How We Picked
We required broad-spectrum protection and SPF 30 or higher, then ranked on water resistance, texture and how easily each format lets you apply the full amount. We have not tested any of these.
Everyone in this category says they tested twenty of these. We have not tested any, and we say so. What we did instead: compiled the published concentrations and ingredient lists, checked each claim against what the formula can actually support, and wrote down who each product is wrong for. The full method is published so you can check it.
Quick Picks
The short answer, by buyer. Select any row for the full write-up.
#
Product
Best for
Where to buy
1
No product photograph available for La Roche-Posay Anthelios Melt-in Milk Sunscreen SPF 60
La Roche-Posay Anthelios Melt-in Milk Sunscreen SPF 60A high-protection, water-resistant lotion that spreads easily, which makes applying the full amount more likely..
No product photograph available for Neutrogena Beach Defense Water + Sun Barrier Lotion SPF 70
Neutrogena Beach Defense Water + Sun Barrier Lotion SPF 70Generous application gets expensive fast; an affordable large bottle removes the temptation to skimp..
No product photograph available for Blue Lizard Sensitive Mineral Sunscreen SPF 50+
Blue Lizard Sensitive Mineral Sunscreen SPF 50+Mineral filters are the usual choice for reactive skin and children, and this is a widely available fragrance-free option..
#ad — buying through these links earns us a commission at no cost to you. No price is shown because we do not run a live price feed, and a remembered number would be a guess.
What to Look For on the Label
Label term
What it means
Why it matters
Broad spectrum
Protects against UVA as well as UVB
UVA drives aging and contributes to skin cancer
SPF 30 or higher
The recommended minimum for daily use
Higher numbers add less than they suggest
Water resistant (40 or 80 minutes)
Tested to hold up that long while wet or sweating
Nothing is waterproof; reapply after the stated time
US sunscreens may not claim to be waterproof or sweatproof; the regulated claim is water resistant for either 40 or 80 minutes. For the filter question — mineral or chemical — see chemical vs. mineral sunscreen.
The Amount Is the Whole Game
Dermatology guidance puts the amount at roughly one ounce for an adult body — enough to fill a shot glass — and more for larger bodies. SPF is tested at that density. Most people apply a fraction of it, which means they receive a fraction of the protection printed on the bottle.
Apply 15 minutes before going outside, to dry skin.
Do not forget the easy-to-miss places: ears, back of the neck, tops of the feet, backs of the hands.
Reapply every two hours outdoors, and immediately after swimming or heavy sweating — whatever the SPF.
Sprays need extra care: spray until skin glistens, then rub it in, and never spray directly at the face.
No product photoNo product photograph available for La Roche-Posay Anthelios Melt-in Milk Sunscreen SPF 60
Premium Beauty listing
1 — An everyday face-and-body lotion
La Roche-Posay Anthelios Melt-in Milk Sunscreen SPF 60
What’s in it
Broad-spectrum SPF 60
Water resistant (80 minutes)
Lotion for face and body
A high-protection, water-resistant lotion that spreads easily, which makes applying the full amount more likely.
Who it’s not for
Anyone who wants a mineral-only formula, and very oily skin that dislikes a lotion finish on the face.
A high SPF feels like a margin of safety, which tempts people to apply less. But SPF is measured at a thick, even layer — about an ounce for an adult body — and protection falls quickly as the layer thins. An SPF 70 applied sparingly can protect less than an SPF 30 applied properly. The number on the bottle assumes you use enough; if you do not, the number is not what you are getting. Use a full shot glass for your body, and reapply every two hours outdoors.
Frequently Asked Questions
About one ounce — roughly a shot glass — for most adults, and more for larger bodies.
Broad-spectrum SPF 30 or higher. Water resistant if you will swim or sweat.
Every two hours outdoors, and immediately after swimming or sweating, whatever the SPF.
No. US sunscreens may only claim water resistance, for either 40 or 80 minutes.
Yes. Many people simply prefer a lighter face formula they will wear every day.
By Sawyer V.. An enthusiast who’s genuinely into this: I read the manufacturer documentation, compile the published percentages, and do the arithmetic. No lab coat.
What I don’t do: test products, accept free product, or accept payment for placement. I hold no clinical credential and don’t claim one. How we pick.
Published September 10, 2026 · Last updated September 10, 2026
