Whether you’re spending a day at the beach or just walking to your car, sunscreen is essential for protecting your skin from harmful UV rays. At O’Neill Plastic Surgery, we prioritize skin health for its role in aesthetic treatments and because healthy skin is beautiful. In this blog, we’re breaking down what SPF means, how to choose the best sunscreen for your skin type, and why daily sun protection is non-negotiable.
What Is SPF?
SPF stands for Sun Protection Factor. It measures how well a sunscreen protects your skin from UVB rays, the type of ultraviolet radiation that causes sunburn and contributes to skin cancer.
Here’s a general rule of thumb:
- SPF 15 blocks about 93% of UVB rays
- SPF 30 blocks about 97%
- SPF 50 blocks about 98%
No sunscreen blocks 100% of UV rays, so proper application and reapplication are key.
Why Daily SPF Matters
You might think sunscreen is only for beach days or summer outings—but UV rays can damage your skin year-round. Even on cloudy days or during short periods of sun exposure, your skin is vulnerable to:
- Premature aging (fine lines, wrinkles, sun spots)
- Hyperpigmentation
- Loss of skin elasticity
- Increased risk of skin cancer
Using sunscreen daily—especially on your face—is one of the simplest and most effective ways to maintain healthy, youthful skin.
Choosing the Right SPF for Your Skin
So how do you choose the best SPF for your skin? Start with these key considerations:
1. Understand Your Skin Type
- Oily/Acne-Prone Skin: Look for oil-free, non-comedogenic formulas.
- Dry Skin: Choose a moisturizing sunscreen with added hydrators like hyaluronic acid or glycerin.
- Sensitive Skin: Mineral sunscreens are usually better tolerated and less likely to irritate.
2. Know the Types of Sunscreen: Physical vs. Chemical
There are two main types of sunscreen: physical and chemical. Both are effective, but they work in different ways:
Physical Sunscreens
These contain zinc oxide and/or titanium dioxide. They sit on top of the skin and act as a physical barrier, reflecting UV rays away from the skin.
- Pros:
- Gentle on sensitive skin
- Effective immediately after application
- Less likely to cause irritation or breakouts
- Gentle on sensitive skin
- Cons:
- May leave a white cast, especially on deeper skin tones (though newer formulations have improved)
- Tend to be more lightweight and transparent on the skin
- Easier to apply without leaving residue
- May leave a white cast, especially on deeper skin tones (though newer formulations have improved)
Chemical Sunscreens
These contain ingredients like avobenzone, oxybenzone, octinoxate, or octocrylene. Instead of reflecting UV rays, they absorb them and convert them into heat, which is then released from the skin.
- Pros:
- Tend to be more lightweight and transparent on the skin
- Easier to apply without leaving residue
- Tend to be more lightweight and transparent on the skin
- Cons:
- May cause irritation or allergic reactions in sensitive skin
- Should be applied 15–30 minutes before sun exposure for full effectiveness
- May cause irritation or allergic reactions in sensitive skin
Which should you choose?
- For sensitive or post-treatment skin, physical sunscreen is usually best.
- A chemical sunscreen may be more suitable if you want a more sheer finish or need a formula that layers well under makeup.
- Many benefit from hybrid formulas combining both types for balanced protection and better wearability.
3. Pick the Right SPF Level
- For everyday use (running errands, going to work): SPF 30 is generally sufficient.
- For extended outdoor activities (beach, sports, hiking): SPF 50 or higher is a better choice.
4. Look for Broad-Spectrum Protection
This means the sunscreen protects against both UVA and UVB rays. UVA rays penetrate deeper into the skin and contribute to premature aging, while UVB rays cause burning.
5. Water-Resistant Formulas
If you’ll be sweating or swimming, choose a water-resistant sunscreen. These typically offer protection for 40 to 80 minutes in water before needing reapplication.
Application Tips for Maximum Protection
- Use Enough: Adults need about one ounce (a shot glass full) of sunscreen to cover their entire bodies.
- Apply Before Sun Exposure: Give it at least 15 minutes to absorb into the skin.
- Reapply Regularly: Every 2 hours, or after swimming or sweating.
- Don’t Forget Key Areas: Ears, lips, neck, hands, and the tops of your feet are often overlooked.
Sunscreen and Your Aesthetic Treatments
If you’ve had treatments like chemical peels, laser resurfacing, or Morpheus8 at O’Neill Plastic Surgery, sunscreen is even more critical. These procedures temporarily increase your skin’s sensitivity to the sun. Failing to protect your skin during this time can lead to pigmentation issues or delayed healing.
Our Favorite Sunscreens at O’Neill Plastic Surgery
At O’Neill Plastic Surgery, we offer a curated selection of medical-grade sunscreens that provide more than basic protection. These formulas are designed to work in harmony with professional skincare treatments and provide advanced defense against UV damage, pollution, and visible signs of aging.
Some of our most trusted brands include:
- ZO® Skin Health is known for powerful antioxidant protection, lightweight formulations, and options for every skin type, including oil-free and tinted versions.
- Skinbetter Science® offers innovative, multi-tasking sunscreens that protect, hydrate, and enhance the skin’s appearance. These sunscreens are perfect for daily use and work beautifully under makeup.
- Alastin Skincare® supports skin before and after cosmetic procedures. Alastin sunscreens are ideal for sensitive or post-treatment skin. Their formulas also contain skin-repairing peptides for added benefits.
- EltaMD® is a dermatologist-favorite brand that blends powerful sun protection with gentle, skin-loving ingredients. Their formulas are especially great for acne-prone, sensitive, or post-treatment skin.
- ISDIN® is a brand trusted in over 40 countries to provide the best sun protection possible with an emphasis on photoaging. O’Neill Plastic Surgery is proud to now offer ISDIN® sun protection in office.
Which one is right for you? Our team can help you choose the perfect formula based on your skin type, lifestyle, and aesthetic goals.
Sunscreen isn’t just a summertime essential—it’s a daily necessity for maintaining skin health, preventing premature aging, and protecting against skin cancer. The best SPF is the one you’ll use every day, so choose a formula that feels good on your skin and fits your lifestyle.
If you’re unsure which product is best for your needs, our team at O’Neill Plastic Surgery in Charleston is happy to help you choose the right sunscreen for your skin type and treatment goals.
Ready to elevate your skincare routine?
Stop by our office or call us today to explore our medical-grade sunscreen options and personalized skincare services.
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