Katie Hawkes
contributing writer

The author testing reef-safe sunscreens in the sun, water, and sand.
Katie Hawkes is a native Southern Californian and contributing gear tester and writer for Treeline.
In addition to being a sun lover, near-the-ocean-dweller, and extreme sunscreen enthusiast with a family history of skin cancer, Katie also has a Masters in Environmental Science and an absolute intolerance for vague and/or poorly-cited information. She’s taken on the thorough job of nitty-gritty information-gathering, and product-vetting in the sunscreen arena, and we’re happy to have her on the Treeline team!
We tested and reviewed 11 spray sunscreens to find the best based on ease of application, absorption, protection, and other user experience factors, and more.
We tested and reviewed 17 SPF lip balms to find the best based on wearability, longevity, moisturizing qualities, taste, smell, meltiness, packaging, and more.
We review 25 broad spectrum SPF sunscreens for your Face. We test lotion for oily skin, sensitive skin, and moisturizing sunscreens that block UVA and UVB rays, including gel and mineral face sunscreens
We review truly reef safe sunscreen and reef friendly sunscreen to find oxybenzone free mineral options for protecting coral and wildlife— free of banned chemical UV filters
We tested 35 SPF lotions to find the best body sunscreen for outdoor activities and best everyday sunscreen with broad spectrum UVA and UVB sun protection.
We asked Treeline Review writers about their go-to sports bras for hiking and backpacking. Here's what they found in their testing, and the favorites.