The Rise of Skin Cancer After Sunscreen Use

According to National Institutes of Health (NIH), skin cancer rates have risen dramatically over the past 50 years. Intriguingly, this spike correlates with the introduction and mass marketing of chemical sunscreens in the 1970s. While correlation does not equal causation, emerging research suggests a disturbing link between sunscreen use and increased skin cancer risk.

How Sunscreen Ingredients May Cause Cancer

Many commercial sunscreens contain chemical compounds such as oxybenzone, avobenzone, octinoxate, and homosalate. These compounds are absorbed into the bloodstream, as demonstrated in a 2020 randomized clinical trial published in JAMA. Notably:

• Oxybenzone: Acts as a hormone disruptor and has been found in over 96% of Americans’ blood samples, according to the Environmental Working Group (EWG).
• Octinoxate: Shown in animal studies to interfere with thyroid hormone production and increase oxidative stress—both cancer-linked mechanisms.
• Homosalate: Accumulates in the body faster than it can be eliminated, raising concerns about long-term toxicity.

In combination with UV exposure, some of these chemicals may break down and produce free radicals, which damage DNA and contribute to the development of cancer cells.

Vitamin D Deficiency: The Unseen Danger of Sunscreen

Sunscreen blocks ultraviolet B (UVB) rays, which are essential for the skin’s production of vitamin D. Studies show that widespread sunscreen use has contributed to a rise in vitamin D deficiency, a condition linked to:

• Weakened immune function
• Increased risk of autoimmune disease
• Greater susceptibility to cancer, including breast and prostate cancer

A study published in The American Journal of Clinical Nutrition highlights the importance of responsible sun exposure in maintaining optimal vitamin D levels.

Natural Sunscreen Alternatives

If you’re looking to protect your skin without compromising your health, several natural alternatives exist. These include:

• Red Raspberry Seed Oil: Offers SPF between 28 and 50, along with anti-inflammatory benefits.
• Carrot Seed Oil: Rich in antioxidants and naturally high in SPF (~40).
• Shea Butter & Coconut Oil: Provide minor sun protection while nourishing the skin.
• Zinc Oxide (non-nano): A physical barrier that reflects both UVA and UVB rays.

Why Tallow Is a Game-Changer Sunscreen

Grass-fed beef tallow is a traditional skincare solution that’s making a comeback. It’s rich in vitamins A, D, E, and K, all of which support healthy skin and offer natural photoprotection. While tallow does not block UV rays like chemical sunscreens, it:

find it here 

• Supports skin’s natural barrier function
• Reduces oxidative stress
• Helps repair UV-induced skin damage

Combined with other natural oils like raspberry seed or zinc oxide, tallow-based balms can serve as an effective, nourishing alternative to commercial sunscreens.

Conclusion: Rethinking Sun Protection

While sunburn and excessive UV exposure are clearly harmful, emerging science suggests that the solution isn’t slathering on chemical-laden sunscreen. Instead, we should embrace a balanced approach—moderate sun exposure for vitamin D, shade and clothing for extended outdoor time, and natural, non-toxic alternatives like tallow for extra protection.