Better Together: Vitamin C and Sunscreen Are the Ultimate Summer Skincare Duo

Find medical-grade skin care products in St. Catharines, Niagara

When it comes to summer skincare, most people know that sunscreen is a non-negotiable essential. However, if you’re not pairing it with Vitamin C, you’re missing out on one of the most effective—and scientifically backed—combinations for healthy, radiant skin. One prevents damage, and the other helps strengthen your defence.

How Sunscreen Works (and What It Can’t Do Alone)

Broad-spectrum sunscreens are designed to protect your skin from UVB rays (which cause burns) and UVA rays (which penetrate deeper and accelerate aging). While sunscreen is critical for preventing sun damage and reducing your risk of skin cancer, it has its limitations. Even the best formulas allow a small percentage of UV radiation to reach your skin, and that’s where antioxidants like Vitamin C can help protect your vibrant summer glow.

How does Vitamin C provide “backup”

Vitamin C is a potent antioxidant that helps neutralize free radicals—unstable molecules that are triggered by UV exposure, pollution, and heat. These free radicals can damage skin cells, break down collagen, and lead to premature aging. Our experts at Aegis MD in St. Catharines understand this on a cellular level and are equipped with the products and treatments to optimize your skin health.

By applying Vitamin C before your sunscreen, you’re giving your skin an extra layer of protection from environmental stressors. You also get the added benefit of:

How To Layer Your Products

Cleanse: Start with a gentle cleanser to prep the skin.

Apply Vitamin C Serum: Use a few drops of a stable, high-quality Vitamin C serum. Let it absorb fully.

Moisturize (if needed): Apply a light moisturizer to seal in hydration and keep skin hydrated.

Sunscreen: Finish with a broad-spectrum SPF 30 or higher. This step locks in your Vitamin C and protects against UV damage.

Consistency is key. We recommend using this combo every morning, even on cloudy days or when you’re indoors.

What to Look For in Your Products

For Vitamin C: Look for L-ascorbic acid in concentrations of 10–20%, paired with Vitamin E or ferulic acid for enhanced stability.

For Sunscreen: Choose a broad-spectrum, mineral, or hybrid SPF with a minimum SPF of 30, ideally with added antioxidants or hydrating ingredients. If you’re unsure which formulas work best for your skin, our team at Aegis MD in St. Catharines is here to guide you with personalized skincare advice and curated product recommendations.

Let Your Skin Thrive This Summer

Sun exposure is inevitable, but sun damage doesn’t have to be. With Vitamin C and sunscreen working in tandem, you can enjoy everything summer has to offer while keeping your skin protected, bright, and resilient.

Visit us at Aegis MD, a medical aesthetics clinic and proud partner of Dermapure St. Catharines, for your personalized consultation in facial fillers, wrinkles relaxants, laser hair removal, skin care, varicose veins treatments and any anti-aging concerns. We serve patients from Niagara, Hamilton, Oakville, and St. Catharines!