Environmental Working Group (EWG) publishes an annual sunscreen guide that aims to help consumers navigate a crowded market full of bold SPF claims, “natural” marketing, and a mix of mineral and chemical UV filters. While it’s not the only lens for evaluating sun protection, the guide is widely cited because it combines ingredient scrutiny with practical advice on what to buy and what to avoid.

What EWG’s sunscreen guide is (and isn’t)

What it is: a consumer-oriented roundup that evaluates sunscreen products based on ingredient concerns, the balance of UVA/UVB protection, and how marketing claims align with scientific realities (for example, very high SPF numbers and spray application issues).

What it isn’t: a substitute for medical advice or a guarantee that a product is “safe” or “unsafe” in absolute terms. Sunscreen effectiveness also depends heavily on correct application, reapplication, and complementary behaviors like shade and protective clothing.

Key ideas shoppers can take from the guide

  • UVA protection matters as much as UVB. UVB is tied closely to sunburn, while UVA contributes to skin aging and can play a role in skin cancer risk. A good product should offer broad-spectrum coverage—not just a high SPF number.
  • Higher SPF isn’t always “better” in real life. Very high SPF values can encourage people to stay out longer or apply less carefully. The practical difference between SPF 30 and SPF 50 can be smaller than consumers assume, especially if application is thin.
  • Mineral vs chemical filters is a meaningful choice for some users. Mineral sunscreens typically use zinc oxide and/or titanium dioxide. Many shoppers prefer them for sensitive skin or to avoid specific chemical filters, though they can feel thicker or leave a white cast—especially on deeper skin tones.
  • Sprays and powders are easy to misuse. EWG frequently flags spray formats because it’s hard to apply an even, adequate layer and because of inhalation concerns. If you use sprays, applying generously, rubbing in, and avoiding breathing the mist are important practical steps.

How to use EWG-style criteria to choose a sunscreen

1) Start with your use case

  • Daily wear (commuting, errands): choose something comfortable enough to use every day—often SPF 30+ broad spectrum, with a finish that works under moisturizer or makeup.
  • Outdoor sports or swimming: prioritize water resistance (40 or 80 minutes) and a formula you can reapply easily.
  • Sensitive skin: consider mineral formulas or fragrance-free options.

2) Look for “broad spectrum” and realistic SPF

For most people, an SPF in the 30–50 range paired with broad-spectrum coverage is a sensible target. More important than chasing the biggest number is applying enough and reapplying regularly.

3) Check the active ingredients

If you prefer mineral protection, look for zinc oxide (often strong for UVA coverage) and/or titanium dioxide. If you choose chemical filters, focus on products that feel good on your skin—because consistency is a major part of real-world protection—while staying mindful of any personal sensitivities.

4) Pay attention to format and application

  • Lotions/creams: often easiest to apply evenly.
  • Sticks: convenient for face and touch-ups, but you may need multiple passes for adequate coverage.
  • Sprays: convenient, but higher risk of patchy coverage—spray close, apply liberally, and rub in.

Shopping guide: quick checklist

  • Broad spectrum (UVA/UVB)
  • SPF 30–50 for most routine uses
  • Water resistant if sweating/swimming
  • Choose a texture/finish you’ll actually wear daily
  • Prefer lotion/cream if you struggle with even application

Bottom line

EWG’s sunscreen guide is best used as a decision aid: it encourages shoppers to think beyond SPF hype, consider UVA coverage, and avoid formats that are easy to apply incorrectly. No guide replaces good sun habits, but choosing a broad-spectrum sunscreen you’ll use consistently—then applying enough and reapplying—remains one of the most practical steps for reducing UV damage.