Everything you need to know about spf

If there’s one non-negotiable step in any skincare routine, it’s applying sunscreen. Yet, it remains one of the most misunderstood products on the shelf. What do the numbers mean? How much is enough? Is one type better than another? This guide to SPF will answer all your burning questions and explain everything you need to know about protecting your skin from the sun.

What is SPF exactly

Let’s start with the basics. What is SPF? SPF stands for Sun Protection Factor. It’s a measure of how much solar energy (UV radiation) is required to produce a sunburn on protected skin (i.e., in the presence of sunscreen) relative to the amount of solar energy required to produce a sunburn on unprotected skin. Essentially, a higher SPF number provides more protection against UVB rays, the primary cause of sunburn and skin cancer. However, no sunscreen can block 100% of UV rays.

Mineral vs chemical sunscreen the big debate

One of the biggest questions in the sunscreen world is the difference between mineral vs chemical sunscreen. Both are effective, but they work in different ways.

• Mineral Sunscreen: Also known as physical sunscreen, this type uses active mineral ingredients, such as zinc oxide and titanium dioxide. These ingredients create a physical barrier on the skin that sits on the surface to block and scatter UV rays away from the skin. They are generally well-tolerated by sensitive skin.
• Chemical Sunscreen: This type uses organic (carbon-based) compounds, such as oxybenzone, avobenzone, and octinoxate. These ingredients work by absorbing UV radiation, converting it into heat, and then releasing it from the skin. They tend to be lighter in texture and spread more easily.

The best choice for you depends on your skin type and personal preference. At ScentSphere, we believe the best sunscreen is the one you’ll wear consistently.

How much sunscreen to use and how often

This is where many people go wrong. To get the full protection stated on the bottle, you need to apply the correct amount. So, how much sunscreen to use? For your face and neck, the general guideline is the “two-finger rule.” Squeeze a line of sunscreen onto your index and middle fingers from base to tip. This amount ensures you’re getting adequate coverage. For your body, you should aim for about a shot glass worth of product.

Application is not a one-and-done deal. Sunscreen should be reapplied at least every two hours, and more frequently if you’re swimming, sweating, or towel drying. It’s also crucial to wear it every single day, regardless of the weather. UVA rays, which are responsible for premature aging, can penetrate through clouds and glass, so protection is necessary even on overcast days or when you’re indoors near a window.

The bottom line on sun protection

Making sunscreen a daily habit is the most effective thing you can do to prevent premature aging and protect your skin’s health. It’s a simple step with a massive long-term payoff. Ready to find your perfect daily protector? Browse our curated collection of sunscreens for every skin type and preference in the ScentSphere shop. Your future skin will thank you.