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Application & Usage Myths articles.

Every Application & Usage Myths article on the blog — sourced, science-led, zero hype.

Application 23 Mar 2025 The Two-Hour Rule: Why High SPF Doesn't Buy You More Time A bottle of SPF 100 doesn't last any longer than SPF 30 — you still need to reapply every two hours, and after swimming or sweating. Read article →
Application 03 Mar 2025 Your SPF 50 Is Probably Acting Like SPF 15. Here's Why. The number on the bottle assumes a thick lab-grade layer almost nobody applies, and the fix takes about ten seconds. Read article →
Application 20 Feb 2025 How Much Sunscreen to Apply: The Shot-Glass Rule The most common sunscreen mistake isn't the brand you buy — it's how little of it you put on. Read article →
Application 09 Feb 2025 Powder and Spray SPF Are Touch-Ups, Not Coverage: 2025 Consensus Dusting on SPF powder or misting setting spray won't get you to the number on the label — it's a top-up, not your base. Read article →
Application 24 Jan 2025 Surfrider's 2025 Reef-Friendly Guide: 12 Sunscreen Ingredients to Skip Skip the marketing buzzwords and check the back of the bottle against the actual ingredient list a leading ocean nonprofit flagged in 2025. Read article →
Application 19 Jan 2025 The January 2025 Badger Sunscreen Recall: A Missing Label, Not Benzene Not every sunscreen recall is about a scary chemical, and this one shows why the boring Drug Facts panel actually matters for using SPF correctly. Read article →
Application 14 Jan 2025 Supergoop! Beats SPF-Accuracy Lawsuit — What the Case Reveals About SPF Testing A lawsuit claimed a cult sunscreen tested at half its labeled SPF — here's why a judge tossed it twice and what SPF lab variability really means for you. Read article →
Application 05 Jan 2025 'Solar Callus' Is the 2025 TikTok Myth Dermatologists Are Begging You to Ignore TikTok says you can 'train' your skin to handle the sun by skipping SPF — dermatologists say the term is invented and the damage is real. Read article →