Skincare Ingredients That Can Cause Sun Sensitivity: What to Avoid in the Summer Months

Did you know that some of your favorite skincare ingredients might be making your skin more vulnerable to UV damage? Certain ingredients can increase your skin’s sensitivity to the sun, leading to a higher risk of sunburn, irritation, and long-term sun damage if you're not careful.

Before you pack your beach bag or head out for a long walk, here’s a guide to skincare ingredients that can cause photosensitivity—and tips on how to use them safely.

What Is Photosensitivity?

Photosensitivity (aka sun hypersensitivity) occurs when a substance—whether ingested or applied topically—makes your skin more reactive to UV rays. This can result in redness, burns, rashes, or even pigmentation issues, even if you're only briefly exposed to the sun.

Ingredients to Watch Out For This Summer

1. Retinoids (Retinol, Retin-A, Tretinoin, Adapalene)
   Retinoids are beloved for their anti-aging and acne-fighting properties, but they also thin the outermost layer of the skin, making it more sensitive to UV rays.
   Tip:Use only at night, and always follow up with SPF 30+ the next day.
2. Alpha Hydroxy Acids (AHAs) – Glycolic Acid, Lactic Acid, Mandelic Acid
   AHAs exfoliate the skin by removing dead skin cells, revealing fresh, smooth skin—but also leaving it more vulnerable to sunburn.
   Tip:Consider reducing AHA use in summer or apply them in the evening only.
3. Beta Hydroxy Acids (BHAs) – Salicylic Acid
   Commonly used to treat acne, BHAs can dry and thin the skin, making it more reactive to sunlight.
   Tip:If using during the day, layer under a broad-spectrum SPF and avoid prolonged sun exposure.
4. Benzoyl Peroxide
   A powerful acne treatment, benzoyl peroxide can make your skin dry, flaky, and more prone to burning.
   Tip:Use in moderation and pair with hydrating ingredients and sunscreen.
5. Hydroquinone
   Used for hyperpigmentation and melasma, hydroquinone increases sun sensitivity and can ironically worsen pigmentation if not paired with diligent sun protection.
   Tip:Use only under medical supervision during sunnier months.
6. Essential Oils – Especially Citrus-Based Oils (Lemon, Lime, Bergamot)
   Many essential oils—especially citrus-derived—contain compounds that are phototoxic, which means they can cause severe sunburns or blisters when exposed to UV light.
   Tip:Avoid using citrus oils on the skin during the daytime.
7. Certain Acne Medications (Oral and Topical)
   Some prescription acne treatments, like isotretinoin (Accutane) or topical antibiotics, increase your skin’s sensitivity to the sun.
   Tip:Talk to your dermatologist about the safest way to use these during summer.

How to Protect Your Skin If You Use These Ingredients

• Apply Sunscreen Daily: Use a broad-spectrum SPF 30 or higher, and reapply every 2 hours when outdoors.
• Time Your Routine: Use sun-sensitizing ingredients only at night when possible.
• Wear Protective Clothing: Hats, sunglasses, and long sleeves can add a layer of defense.
• Listen to Your Skin: If you notice burning, redness, or peeling after sun exposure, reevaluate your routine with your dermatologist.