10 Makeup Myths You Should Stop Believing

3. You Should Toss Mascara After Three Months—No Exceptions

The three-month rule for mascara replacement is a widely accepted guideline to prevent eye infections caused by bacterial buildup. However, factors such as the effectiveness of preservatives, how often you use the product, and your application habits can influence mascara’s shelf life.

For example, pumping the wand introduces air and bacteria, accelerating spoilage. The FDA recommends discarding mascara at the first sign of odor, color change, or irritation, even if it’s before three months. Ultimately, practicing good hygiene and monitoring your product’s condition are key to keeping your eyes safe while using mascara.

4. You Don’t Need Sunscreen Under Makeup

Many believe that using foundation or tinted moisturizer with SPF is sufficient for daily sun protection. However, most people do not apply enough product to achieve the stated level of protection, leaving skin vulnerable to UV damage.

Experts from The Skin Cancer Foundation recommend applying a dedicated broad-spectrum sunscreen as the final step in your skincare routine, before makeup. This ensures even coverage and optimal defense against harmful rays. Layering sunscreen under makeup is crucial for maintaining healthy skin and reducing the risk of premature aging and skin cancer.

5. Only Oily Skin Needs Primer

The myth that primers are only useful for oily or acne-prone skin overlooks the diverse range of products available today. While mattifying primers can help control shine and prolong makeup wear for oily skin, there are also hydrating primers for dry skin, blurring primers for minimizing pores, and illuminating primers to boost radiance for dull complexions.

As highlighted by Allure, primers are formulated to address specific skin concerns and enhance the overall look and longevity of makeup for every skin type. Choosing the right primer can transform your makeup routine, regardless of your skin type.

6. Red Lipstick Doesn’t Suit Everyone

The belief that red lipstick is only flattering on select skin tones is outdated and limiting. In reality, red lipsticks come in a wide spectrum of shades and undertones, from cool blue-reds to warm orange-based reds, making it possible for everyone to find their perfect match.

Celebrities like Lupita Nyong’o, Taylor Swift, and Priyanka Chopra all wear red lips beautifully, proving its universal appeal. According to Vogue, the key is to experiment with different hues and undertones until you discover the red that makes you feel confident and radiant, regardless of your complexion.

7. Makeup Expires Only When It Smells Bad

It’s a mistake to assume makeup is still safe as long as it smells and looks normal. Most cosmetics have a specific shelf life, indicated by a Period After Opening (PAO) symbol on the packaging, such as “6M” for six months. Expired makeup can harbor bacteria and cause skin irritation or infections, even if there are no obvious signs of spoilage.

The FDA recommends discarding products after their recommended period and never sharing makeup to prevent contamination. Always check expiration dates and follow manufacturer guidelines to protect your skin and overall health.

8. You Must Match Foundation Exactly to Your Face

Many people assume foundation should be matched only to the skin on their face, but this can cause an obvious line at the jaw or a mismatch with the neck and chest. Skin tones often vary between the face and body due to sun exposure or skincare habits.

Experts recommend testing foundation along the jawline and blending it down toward the neck for a natural, seamless look. According to advice from Makeup.com, choosing a shade that harmonizes your face, neck, and chest ensures your makeup appears flawless and cohesive in any lighting.

9. Makeup Stops Aging

The notion that makeup can prevent or reverse aging is misleading. While certain cosmetic products can temporarily create a more youthful appearance—think brightening concealers or illuminating foundations—makeup itself does not have true anti-aging effects.

Some formulas may include added skincare ingredients, but they cannot replace the long-term benefits of dedicated skincare and daily sun protection. According to the Mayo Clinic, the only proven ways to slow visible aging are diligent skincare, healthy habits, and consistent use of sunscreen. Makeup is a tool for enhancement, not a solution for aging.

10. Natural Makeup Is Always Safer

The perception that “natural” or “organic” makeup is inherently safer than synthetic alternatives isn’t always accurate. These products can still cause irritation or allergic reactions, especially in sensitive individuals. The term “natural” isn’t strictly regulated, so formulations and ingredient quality can vary widely.

According to the American Academy of Dermatology, even natural ingredients—like botanical extracts or essential oils—may trigger adverse skin reactions. It’s essential to review ingredient lists and conduct a patch test before using any new product, regardless of its marketing claims, to ensure your skin’s safety and well-being.

Conclusion

Challenging common makeup myths empowers you to make more informed, personalized beauty choices. Don’t let outdated beliefs or viral trends dictate your routine—research ingredients, consult licensed professionals, and rely on science-backed advice tailored to your skin’s unique needs. By staying curious and critical, you can navigate the ever-changing beauty landscape with confidence. For more expert guidance, explore reputable sources like the American Academy of Dermatology and FDA Cosmetics.