The Ultimate Guide to SPF: Why It’s a Non-Negotiable in Your Skincare Routine 


 When it comes to skincare, there’s one product that stands above the rest in preventing premature aging, protecting against skin cancer, and keeping your complexion even: SPF. Yet, many people still underestimate the importance of daily sunscreen—especially on cloudy days. Let’s break down why SPF should be a non-negotiable in your routine, plus some little-known tips to get the most out of your sun protection.  

 Why Wear SPF Every Single Day—Even When It’s Cloudy?  

A common myth is that you don’t need sunscreen when the sun isn’t shining, BUT up to 80% of UV rays penetrate through clouds. That means your skin is still exposed to the damaging effects of the sun, even on overcast days.  AND did you know UVA rays are found in fluorescent lighting? That means even sitting inside a building with no windows your face is bombarded with UV rays!

☁️ Think of UV rays like WiFi—just because you can’t see them doesn’t mean they’re not reaching you.  

There are two types of UV rays that impact your skin:  

UVA Rays: These are the AGING rays that penetrate deep into the skin, breaking down collagen and causing fine lines, wrinkles, and sagging over time.  Remember above: UVA rays are found in fluorescent lighting….

UVB Rays: These are the burning rays responsible for sunburn and DNA damage, which can lead to skin cancer. Some people also cause these tanning rays! 

The takeaway?  You need SPF.  It is much better to prevent than repair and much less expensive!

Little-Known SPF Tips That Will Change Your Routine

✔️ You need a full teaspoon of SPF for your face and neck.  Most people only apply about 25–50% of the amount needed for full protection.  

✔️ SPF in makeup isn’t enough. If your foundation has SPF, great—but you’d have to apply SEVEN times the normal amount to get the full SPF protection and you would look like a clown! . Always apply a dedicated sunscreen first.  

✔️ Don’t forget your ears, lips, and HANDS. These areas show early signs of aging because they’re often neglected in SPF application.  

Why People with Melasma Should Use a Tinted SPF 

If you struggle with melasma, sun exposure can make it significantly worse—even with SPF. That’s because visible light (not just UV rays) can trigger pigment production.  

✨ Tinted sunscreens contain iron oxides, which provide an EXTRA layer of protection against visible light, helping to prevent melasma from darkening.  

EltaMD’s UV Clear Tinted SPF 46  is an amazing option for those prone to hyperpigmentation, as it offers both broad-spectrum protection and skin-soothing ingredients like niacinamide.  

 EltaMD: The Gold Standard in Sunscreen

One of the best SPF brands on the market is EltaMD, known for dermatologist-approved formulas that cater to different skin types and concerns. Whether you have sensitive skin, acne-prone skin, or need extra hydration, there’s an EltaMD SPF for you.  We choose to offer ELTA MD at FACE FOUNDRIÉ as it is a comfortable SPF that you will actually want to apply! The fact that it is a combination of Skincare + SPF makes it a multi tasking powerhouse!

Which EltaMD SPF is Right for You? 

☀️ For Acne-Prone Skin: EltaMD UV Clear SPF 46 (or the tinted version!) – Lightweight, oil-free, and packed with niacinamide to calm inflammation.  

☀️ For Dry Skin: EltaMD UV Daily SPF 40 – Hydrating with hyaluronic acid, perfect for daily wear under makeup.  

☀️ For those who prefer a Natural, Mineral option: EltaMD AOX Elements – A hydrating formula full of anti aging vitamins. 

☀️ For Outdoor Activities: EltaMD UV Sport SPF 50 – Sweat- and water-resistant, perfect for long days in the sun in an easy to apply mist.

☀️ For Post-Procedure or Sensitive Skin: EltaMD UV Restore SPF 40 – Helps repair and protect compromised skin.  

Why You Need a Fresh Bottle of SPF Every Few Months

Sunscreen doesn’t last forever! Over time, its active ingredients break down, making it less effective at protecting your skin. Most sunscreens are only effective for about 6 months.

Here’s why you should replace your SPF every few months:  

1. Expiration Dates Matter  

Most sunscreens have a shelf life of about 3 years unopened, but once opened; exposure to air, heat, and bacteria will degrade the formula faster.  

2. Active Ingredients Lose Potency 

The UV-fighting ingredients—like zinc oxide, titanium dioxide, and chemical filters—break down over time, reducing their ability to block harmful rays.  

3. Heat & Sun Exposure Weaken SPF 

If your sunscreen sits in a hot car, hot bathroom, beach bag, or near a sunny window, its effectiveness can deteriorate even before the expiration date.  

4. You Should Be Using More Than You Think

A full teaspoon is needed for your face and neck, and a shot-glass amount for your body. If you’re applying SPF correctly (and reapplying), a bottle should run out within a few months—long before it expires!  

💡 Pro Tip: If your sunscreen has a weird smell, a change in texture, or separation, it’s time to toss it and grab a fresh bottle.  

👉 You can pick up fresh, dermatologist-approved EltaMD SPF at FACE FOUNDRIÉ in Nashville to ensure your skin stays protected year-round!

We use ELTA MD in our closing protocols post service – easily book your favorite, new service at facefoundrie.com or text/call for concierge guided booking: 629.241.9400! We cannot wait to touch your face!