5 Common Sunscreen Mistakes and How to Avoid Them for Better Sun Protection

You slather on sunscreen before heading to the beach, reapply after swimming, and think you're fully protected. But even the most diligent sun lovers can fall into common traps that leave skin vulnerable to UV damage. From using too little product to neglecting often-missed spots, these mistakes can undermine your sun protection efforts and increase your risk of sunburn, premature aging, and skin cancer.

The good news? With a few simple adjustments, you can upgrade your sunscreen routine and enjoy the sun with confidence. In this guide, we'll uncover the five most frequent sunscreen mistakes and share expert tips to help you avoid them. Plus, we'll highlight some of our favorite Sun Bum products that make proper protection easy and enjoyable.

Mistake #1: Not Applying Enough Sunscreen

One of the most common sunscreen mistakes is using far less product than recommended. Most people apply only 25 to 50 percent of the amount needed to achieve the labeled SPF. The rule of thumb is to use about one ounce—roughly a shot glass full—to cover your entire body. For your face alone, a nickel-sized dollop is a good start.

When you skimp on quantity, you dramatically reduce the protection you think you're getting. For example, applying half the recommended amount of SPF 30 can result in effective protection closer to SPF 15 or lower. To ensure you're fully covered, don't be shy with your sunscreen. Use enough to create a visible, even layer on your skin, and rub it in thoroughly.

• Apply at least one ounce (a shot glass) of sunscreen to your body.
• Use a nickel-sized amount for your face and neck.
• Don't forget often-missed areas like ears, back of the neck, and tops of feet.

Mistake #2: Relying on 'Waterproof' Claims and Not Reapplying

No sunscreen is truly waterproof. The FDA no longer allows brands to use that term because all sunscreens eventually wash off. Instead, you'll see 'water-resistant' labels, which indicate protection for either 40 or 80 minutes while swimming or sweating. But even water-resistant formulas need to be reapplied regularly.

A good habit is to reapply sunscreen every two hours, or immediately after swimming, toweling off, or heavy sweating. Set a timer on your phone or pair it with another activity, like eating lunch or checking the time between beach games. For easy on-the-go reapplication, consider using a convenient product like the Sun Bum Original SPF 30 Sunscreen Lip Balm - Watermelon for your lips, which often get neglected.

• Reapply every two hours, even on cloudy days.
• Reapply immediately after swimming, sweating, or towel drying.
• Use a lip balm with SPF, like the Original SPF 30 Sunscreen Lip Balm - Kiwi, for all-day lip protection.

Mistake #3: Forgetting Your Lips and Other Sensitive Areas

Your lips have very little melanin and are extremely susceptible to sun damage, yet they're often left unprotected. Sunburned lips can be painful and increase the risk of skin cancer in that area. Similarly, the delicate skin around your eyes, your ears, and the part in your hair are frequently missed spots.

To protect your lips, always use a dedicated lip balm with broad-spectrum SPF. The Sun Bum CocoBalm Lip Balm - Ocean Mint offers moisturizing coconut oil and SPF 30 protection in a refreshing mint flavor. For your face and other sensitive zones, a mineral stick sunscreen can be a lifesaver—try the Sun Bum MTN.BUM Face Stick Koozie for precise, no-mess application on the go.

• Always apply SPF lip balm before sun exposure.
• Use a mineral face stick for ears, nose, and around eyes.
• Don't forget the scalp—wear a hat or use a spray sunscreen on your part.

Mistake #4: Using Expired or Improperly Stored Sunscreen

Sunscreen doesn't last forever. Most bottles have a three-year shelf life from the date of manufacture, but if you've left it in a hot car or direct sunlight, the active ingredients can break down much faster. Expired sunscreen loses its ability to protect you effectively, giving you a false sense of security.

Check the expiration date on your bottle before each use. If there's no date, note when you bought it and replace it after three years. Store sunscreen in a cool, shaded place—not in your glove compartment or beach bag in direct sun. If the texture, color, or smell changes, it's time to toss it and grab a fresh bottle.

• Check expiration dates and replace sunscreen every three years.
• Store sunscreen below 86°F (30°C) and away from direct sunlight.
• Discard any sunscreen that separates, changes color, or smells off.

Mistake #5: Thinking a 'Base Tan' or Makeup with SPF Is Enough

A common myth is that a base tan provides significant sun protection. In reality, a tan is a sign of skin damage, and even a deep tan offers only about SPF 3 to 4—far below the recommended SPF 30 minimum. Relying on a tan for protection is a dangerous gamble that can lead to severe burns and long-term damage.

Similarly, makeup with SPF is better than nothing, but it's rarely applied in the quantity needed for full protection. A dusting of powder or a thin layer of foundation won't give you the SPF listed on the label. Always apply a dedicated sunscreen underneath your makeup, and use a setting spray or powder with SPF for touch-ups throughout the day.

• Never rely on a tan for sun protection—use sunscreen with at least SPF 30.
• Apply a separate sunscreen under makeup for adequate coverage.
• Use a broad-spectrum sunscreen on all exposed skin, every day.

Avoiding these five common sunscreen mistakes can make a world of difference in your skin's health and appearance. By applying enough product, reapplying regularly, protecting sensitive areas, storing your sunscreen properly, and never relying on a tan or makeup SPF alone, you'll enjoy the sun safely. Ready to upgrade your sun protection routine? Check out the Sun Bum Original SPF 30 Sunscreen Lip Balm - Watermelon for a tasty, protective lip option that makes daily application a breeze.