As awareness around sun protection continues to grow, many people rely solely on SPF numbers to guide their sunscreen choices. While SPF (Sun Protection Factor) is important, it only tells part of the story. The truth is, SPF primarily measures protection against UVB rays—those that cause sunburn. However, it says little about UVA rays, which penetrate deeper into the skin and are responsible for long-term damage like photoaging, oxidative stress, DNA damage, and even immune suppression.
The Limits of SPF Alone
SPF ratings are based on how long it takes for skin to redden with sunscreen compared to unprotected skin. This measurement is linked to UVB protection alone. However, UVA rays, which account for about 95% of UV radiation that reaches the earth’s surface, go deeper into the skin and accelerate aging, degrade collagen and elastin, and damage DNA at a cellular level—none of which are addressed by SPF alone.
This explains why, despite higher sunscreen usage globally, the rates of skin cancers and premature aging continue to rise. Protection against sunburn is not enough; what we really need is comprehensive defense against both UVA and UVB rays, including the downstream effects they cause.
Astaxanthin: Nature’s Most Powerful UV Shield
Astaxanthin is a naturally derived antioxidant from the Haematococcus pluvialis algae. Known as one of the strongest antioxidants in nature—6,000 times more powerful than Vitamin C—astaxanthin plays a vital role in combating the oxidative stress triggered by sun exposure. It neutralizes free radicals, helps maintain collagen and elastin, reduces inflammation, and supports the skin’s immune response.
Unlike surface-level protection provided by filters alone, astaxanthin acts at a deeper, cellular level, working to prevent and repair damage caused by UV radiation. It’s not a substitute for SPF, but rather a critical enhancement that strengthens the skin’s internal defenses and reduces the signs of photoaging.
Li Lé Blue’s Holistic Approach to Sun Protection
Li Lé Blue, a boutique skincare company founded by a medical doctor and a professional diver, is embracing this with new technology. Inspired by their passion for the ocean and backed by clinical research, the brand formulates its products to offer both effective sun protection and environmental responsibility.
Their Natural Mineral Sunscreen combines zinc oxide—an effective UV filter—with astaxanthin to deliver multi-level protection. This approach not only defends the skin from UVB-induced redness but also targets UVA-induced oxidative stress, collagen degradation, and inflammation. The result is a sunscreen that doesn’t just prevent sunburn, but actively helps preserve skin health and appearance.
Takeaway
In today’s world, where sun exposure is a daily reality, choosing a sunscreen based on SPF alone is no longer enough. Modern sun protection requires a deeper understanding of UV damage and the power of antioxidants like astaxanthin. Brands like Li Lé Blue are leading the way, offering skincare that protects, repairs, and respects both your skin and the sea.
Explore Li Le Blue’s sunscreen and protect your skin by visiting www.lileblue.com.