Protecting young skin from the sun.

What the sun does to your skin — and how to stop it.

Most skin cancer is preventable through photoprotection. Explore the peer-reviewed science through interactive models you can touch.

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Why it matters

Awareness is rising, consistent protection isn't

The simple version: Most people know the sun is risky, but they still don't protect their skin consistently.

1 in 5

Americans will develop skin cancer in their lifetime, a statistic officially tracked and published by the Skin Cancer Foundation. It is one of the most common cancers in the country, and the vast majority of cases are linked to preventable UV exposure. (Skin Cancer Foundation 2024)

Sun-protective behaviors like sunscreen, protective clothing, hats, shade seeking, and sun avoidance are widely recommended. But research across ages, countries, and settings shows a large gap between awareness and consistent, effective practice. (Julian 2023; Baig 2023)

Protection matters for every skin type. People with skin of color more often rely on shade and clothing, yet sunscreen use stays relatively low. (Tsai 2022)

The behaviors that work

Four habits and what the evidence actually shows

The simple version: Shade, covering clothing, hats, and well-applied sunscreen are what actually cut down on sunburns.

Sun protection behaviors and their supporting evidence
BehaviorWhat the evidence showsSources
Shade / sun avoidance
Linked to fewer sunburns in US adults.(Linos 2011; Julian 2023)
Covering clothing (long sleeves)
Also linked to fewer sunburns; a reliable physical barrier.(Linos 2011)
Sunscreen, applied correctly
Protective when applied properly and reapplied; as typically used, frequent sunscreen was not linked to fewer sunburns.(Linos 2011; Reis-Mansur 2023)
Avoiding peak sun & tanning
Lowers overall UV dose, though cutting total time in the sun is the hardest behavior to shift.(McKenzie 2023; Baig 2023)

No single measure is enough. Shade and protective clothing appear particularly effective for reducing sunburn, while sunscreen's benefit depends heavily on correct and regular application. (Linos 2011; Reis-Mansur 2023)

The gap

Protection is available, but underused

The simple version: Sun protection is easy to get, but lots of people skip it or don't use it the right way.

In a 20-country survey, voluntary sunbathing was common and many people were out during peak 10am–4pm hours; only about 24% reapplied sunscreen every two hours. (Lim 2024)

US adults have increased sunscreen, hats, long sleeves, and shade over time and use less sun avoidance, yet skin cancer rates keep rising. (McKenzie 2023)

Rural adults and runners are aware but inconsistent; forgetfulness, discomfort, and interference with outdoor work or exercise are major barriers. (Jewett 2025; Tenforde 2021)

What changes behavior

How sun-safe habits actually take hold

The simple version: Knowing the facts isn't enough — daily routines, role models, and programs are what make protection stick.

Beliefs and barriers

Beliefs that protection reduces sunburn and skin cancer are common, but appearance, comfort, vitamin D, and convenience often dominate decisions. (Julian 2023; Jewett 2025)

Knowledge isn't enough

Among adolescents and college students, knowledge scores often don't translate into protective action. (Tran 2023; Anshasi 2025)

Caregivers and programs

Young children mirror caregivers' protection. School-, recreation-, and policy-based programs improve knowledge and some habits, though average behavior change is modest and effects on sun exposure are mixed. (Diehl 2022; Reyes-Marcelino 2021; Saraiya 2004; Sheeran 2020)

Why it matters

Most of this was preventable.

The simple version: most skin cancer comes from sun damage, and protecting skin early is the best way to stop it.

Skin cancer is the most common cancer in the world, and one of the most preventable. Behind every statistic is a person: a parent, a student, a patient who sat in a clinic hearing a diagnosis that consistent photoprotection might have changed. The models above aren't abstract. They are the difference between a sunburn in childhood and a melanoma decades later.

~24%

of adults in a 20-country survey reapply sunscreen every two hours as recommended; most do not. (Lim 2024)

Shade & sleeves

were linked to fewer sunburns in US adults, while sunscreen as typically used was not. (Linos 2011)

Mixed

School and pediatric programs improve knowledge and some habits, but effects on sun exposure and sunburn are inconsistent. (Reyes-Marcelino 2021)

Lower use

People with skin of color more often use shade and clothing, but sunscreen use stays relatively low. (Tsai 2022)

Knowing the risk isn't enough

Excess UV is the main preventable cause of skin cancer, yet knowledge alone rarely changes habits. Among adolescents and college students, knowledge scores often don't translate into protective action, and beliefs that protection helps are frequently outweighed by comfort, appearance, and convenience. That gap, between what people know and what they do, is where prevention is won or lost. (Anshasi 2025)(Jewett 2025)

Habits start young, at home and school

For young children, caregivers' own sun protection and sense of being a role model are strongly linked to kids' behavior. School-, recreation-, and policy-based programs are among the most reliable ways to build sun-safe habits early, teaching protection as a daily routine before a lifetime of UV exposure adds up. (Diehl 2022)(Saraiya 2004)

Evidence base

References

Every finding above links to its source here. Citations follow the peer-reviewed literature on UV exposure, photoprotection, and sun-protective behavior.

  1. [1]Anshasi, H. A., Almazrouei, H., Rashed, N., Salem, R., Suhail, M., & Abdulla, A. (2025). Sun protection behaviors and knowledge of skin cancer and sun exposure among Emirati undergraduate students. BMC Public Health, 25. https://doi.org/10.1186/s12889-025-24988-z
  2. [2]Baig, I. T., Petronzio, A., Maphet, B., & Chon, S. (2023). A Review of the Impact of Sun Safety Interventions in Children. Dermatology Practical & Conceptual, 13. https://doi.org/10.5826/dpc.1301a66
  3. [3]De Menezes-Júnior, L. A. A. (2025). Educational inequalities in sun protection practices among Brazilian adults. Scientific Reports, 15. https://doi.org/10.1038/s41598-025-17680-0
  4. [4]Diehl, K., Thoonen, K., Breitbart, E., Pfahlberg, A., & Görig, T. (2022). Sun Protection and Tanning Behaviors in Caregivers: Prevalence, Determinants, and Associations with Children’s Behaviors. International Journal of Environmental Research and Public Health, 19. https://doi.org/10.3390/ijerph19116876
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  20. [20]Tran, T., Song, S., Texeira, A. J., Rechis, R., & Nelson, K. (2023). Educational interventions to promote sun-protection behaviors in adolescents in the United States: A systematic review. Pediatric Dermatology, 40, 637–641. https://doi.org/10.1111/pde.15335
  21. [21]Tsai, J., & Chien, A. (2022). Photoprotection for Skin of Color. American Journal of Clinical Dermatology, 23, 195–205. https://doi.org/10.1007/s40257-021-00670-z