Your Guide to DIY Sunscreen

Photo courtesy of ScratchMommy.com

At the lake during the summer, you never want to venture outside without sunscreen. We’ve all experienced the consequences of failing to do so. A painful burn, sometimes one that’s uneven due to haphazard sunscreen application, is never fun. For many, the consequences are even more severe. According to the American Academy of Dermatology, one in five Americans will develop skin cancer in their lifetime. So, to avoid that painful sting and a trip to the pharmacy for aloe vera, it’s best to apply sunscreen every time and do it right. This includes knowing the rules of SPF, how much to use, and when.

Now that we’ve established the importance of sunscreen, the type of sunscreen you wear is up to you. There are pros and cons to each. Mineral sunscreen is topical, so it washes off quickly, but you avoid the possibility of chemicals in the bloodstream. By contrast, chemical sunscreen gets absorbed into your skin, and while it lasts longer, it’s less natural. However, there’s also a third option — DIY sunscreen. Whether you’re looking to save money, avoid the store, or explore natural sunscreen ingredients, DIY sunscreen can be a great option. But before applying your homemade concoction on a sunny day, it’s essential to know the basics. Today, we’ll be going over the risks, benefits, and must-have ingredients for creating your own sun protection.

How Will My Sunscreen Work?

Image courtesy of Prevention.com

First and foremost, DIY sunscreen is not simply a craft project to take lightly. A lot is at stake when it comes to skincare, so it’s important that you create an effective sunscreen. It must have a Sun Protection Factor (SPF) of at least 30, and it must cover both UVA and UVB rays (known as “broad spectrum” sunscreen). An understanding of sunscreen mechanisms is also essential. Basically, they work by scattering or absorbing these harmful UV rays so they don’t penetrate and burn your skin. The sunscreen you create will need to do this effectively.

What Ingredients Should I Use?

Photo courtesy of dontwastecrumbs.com

When creating your own sunscreen, you need to use ingredients powerful enough to block this broad spectrum of UV rays. So, how do brand sunscreens do this? For sunscreens to be approved by the FDA, they need to include titanium oxide or zinc oxide. Beyond this, they may contain various additional ingredients — some to endorse and some to avoid. For example, steer clear of sunscreen that includes insect repellants or strong fragrances. When making your own DIY sunscreen, include one of these two FDA-approved chemicals and skip on anything you don’t want on your skin.

What Recipes Can I Follow?

Photo courtesy of goddessgarden.com

If you google “DIY sunscreen” online, you’ll find a variety of different mixtures, mainly from bloggers, detailing their creations. However, it’s hard to know which ones will actually provide decent sun protection. An online magazine, Healthline, compiled a list of tried-and-true recipes that you can create at your lake house. Straight from their expertise, check it out below: 

  • ¼ cup coconut oil with SPF 7 
  • 2 or more tbsp. powdered zinc oxide 
  • ¼ cup pure aloe vera gel that is 50% or higher 
  • 25 drops of walnut extract oil 
  • 1 cup of shea butter 

Although aloe vera is typically conceptualized as a sunburn treatment, this ingredient helps prevent sunburns as well. Additionally, the walnut extract adds an organic fragrance while the shea butter creates a smooth texture. Keep in mind that it’s not waterproof (most DIY sunscreens will not be waterproof), so you’ll need to re-apply frequently. To create a spray version, just take out the shea butter. If you need sunscreen for oily skin, substitute coconut oil with jojoba oil or sweet almond oil — these two ingredients will not cause as much oil buildup on the skin.

For other DIY sunscreen recipes, check out Don’t Waste the CrumbsWellness MamaPronounce Skin Care, and many more. We wish you the best with your recipe, and stay safe out there in the sun!

Sun Protection Series #1: All You Need to Know About Sunscreen When at the Lake

As lake dwellers, we’ve all experienced a painful sunburn. While it’s no big deal to treat most sunburns at home with moisturizer and aloe vera, it’s best to reduce your burns because chronic, unprotected sun exposure can be dangerous. According to the American Academy of Dermatology, 1 in 5 Americans will develop skin cancer in their lifetime. To highlight the importance of sun protection on the lake, we’re launching a four-part blog series on this topic, beginning with a spotlight on sunscreen. To learn more about using sunscreen properly at the lake, we connected with Dr. Rina Allawh at Montgomery Dermatology near Philadelphia, PA, and Dr. Todd Minars from Minars Dermatology in Hollywood, FL. These dermatologists lent us their expert advice on the essentials of sun protection for lake lovers like us. 

What is SPF?

We’ve all seen this acronym on sunscreen bottles, but do we really know what it means? First, SPF stands for Sun Protective Factor, and it measures a product’s degree of protection against the sun’s harmful UV rays. There are two types of UV — UVA rays which penetrate deeper and cause the skin to age and UVB rays that are surface-level and cause the skin to burn. To filter out this harmful light, SPF was created. It’s available in two broad categories: chemical and physical. While chemical sunscreens contain organic compounds that absorb UV rays when they enter the skin, physical sunscreens include mineral compounds which sit on top of the skin and scatter and reflect UV rays. Both have costs and benefits. Recent studies suggest that some chemical sunscreen can be absorbed into the blood, but Dr. Allawh clarifies that there are currently no studies linking sunscreen to cancer. Regardless of which type of sunscreen you choose, the most crucial factor is simply using it. Dr. Minars emphasizes this importance: “Quite literally, applying sunscreen with SPF is the best anti-aging and skin care preventative step a person can take.”

What SPF Should I Use?

Dr. Allawh’s patients frequently ask her whether a high-numbered SPF is better. The answer depends less on the SPF and more on one’s application. She comments, “Many individuals purchase a higher SPF in hopes that they don’t have to reapply. In reality, a high-number SPF does not mean you can spend additional time outdoors unprotected. Reapplication is essential, especially after being in the water.” Although a higher SPF number does not protect your skin longer, it does have slightly more coverage from the sun’s UVB rays. For instance, SPF 30 blocks 97% of these rays, and higher numbers will provide 98% coverage and above. However, Dr. Allawh adds, “No sunscreen, in reality, can block 100% of the sun’s rays.” Finally, when picking out a sunscreen, make sure that the term “broad spectrum” is on the label, demonstrating that it protects against both UVA and UVB rays. And don’t forget to check the expiration date!

How Much Should I Apply?

Dr. Allawh recommends applying a nickel-sized amount of sunscreen to the entire face daily. If you’re spending time outside on the lake, she recommends applying one shot glass amount of sunscreen to your exposed skin. Although it’s a common practice to only reach for the sunscreen when it’s sunny outside, it’s just as important to wear SPF on cloudy or overcast days. Especially between the hours of 10am-2pm, the sun’s rays are exceptionally strong, and it’s critical to apply the recommended amount of SPF. Dr. Allawh says, “a helpful tip I recommend to my patients: When your shadow is shorter than you are… seek shade!” 

What Products Should I Use?

Photo courtesy of Prevention.com.

The answer to this question depends on your skin features and whether your goal is repair or protection. For everyday use, while lounging on your boat dock, Dr. Minars suggests a rub-on SPF sunscreen like Neutrogena Beach Defense. Its 80-minute water resistance is ideal for lake environments. If your skin is sensitive or acne-prone, Dr. Allawh suggests products that are light and non-comedogenic (meaning they won’t block your pores) such as Elta MD UV ClearLaRoche Posay Anthelios, and Neutrogena Ultra Sheer Dry Touch. She notes that “they have a nice buildable texture which is ideal for applying before any make-up.” If you’ve already accumulated skin damage from years enjoying the sun, it isn’t too late. Dr. Minars recommends AlphaRet cream products from Skinbetter Science for skin repair. Although this product is less potent than a dermatologist’s prescription, their key ingredients of retinoid and lactic acid rejuvenate and repair the skin. 

In the coming weeks, keep an eye out for more blog posts in our Sun Protection Series. For now, apply some sunscreen and get outdoors!