Many people know that spending too much time in the sun can lead to sunburn and sun damage in the short term, as well as signs of premature aging like sunspots and even skin cancer in the long term. What many fail to consider, however, is that certain medications and skincare ingredients can make your skin significantly more vulnerable to ultraviolet (UV) radiation, accelerating the possibility of these outcomes.
If you’ve ever noticed that you burn more easily after starting a new medication or skincare product, photosensitivity may be the reason. Certain ingredients can increase your skin’s sensitivity to sunlight, leading to redness, irritation, itching, peeling, and even dark spots.
Below, we’ll explore some of the most common photosensitive skincare ingredients, medications that make you sun sensitive, and practical steps you can take to protect your skin while continuing your treatment.
What Is Photosensitivity?
Photosensitivity is an increased sensitivity or abnormal reaction of the skin to ultraviolet (UV) radiation from the sun. According to the Cleveland Clinic, photosensitivity can cause symptoms such as redness, itching, rashes, irritation, swelling, and severe sunburn-like reactions after relatively limited sun exposure.
Photosensitivity can occur for a variety of reasons, but one of the most common causes is the use of certain medications and topical skincare products. These ingredients can alter how your skin responds to UV light, making it easier for damage to occur. In some cases, photosensitivity simply lowers your skin’s tolerance to the sun. In others, the reaction can be much more significant, causing inflammation, blistering, or prolonged skin irritation.
Understanding which products and medications increase sun sensitivity can help you take the proper precautions and avoid uncomfortable reactions.
What Skincare Product Ingredients Increase Sun Sensitivity?
When discussing photosensitive skincare, some of the most common culprits are ingredients designed to exfoliate, renew, or brighten the skin. While these ingredients can provide excellent cosmetic and therapeutic benefits, they can also leave the skin more vulnerable to UV damage. While many of these products may still be used in proper circumstances, it’s important to exercise caution and take the proper measures for sun protection alongside their use.
Retinoids
Retinoids are among the most effective anti-aging and acne-fighting ingredients available. They work by increasing skin cell turnover, helping to improve fine lines, uneven pigmentation, and breakouts.
Common retinoids include:
- Retinol
- Tretinoin
- Adapalene
- Tazarotene
Because retinoids accelerate exfoliation and skin renewal, the newer skin cells underneath may be more susceptible to sun exposure. Patients using retinoids often experience dryness, redness, peeling, and irritation, which can become more pronounced when combined with UV exposure.
Many people specifically ask about isotretinoin and sun exposure. While isotretinoin (Accutane) is an oral medication discussed later in this article, it can similarly increase skin sensitivity and dryness.
Alpha Hydroxy Acids (AHAs)
Alpha hydroxy acids are chemical exfoliants commonly found in anti-aging and brightening products.
Popular AHAs include:
- Glycolic acid
- Lactic acid
- Mandelic acid
These ingredients help remove dead skin cells and improve skin texture, but they can also reduce the skin’s natural protective barrier. As a result, the skin may burn more easily when exposed to sunlight.
If you’re wondering what skincare to avoid using in the sun, products containing strong AHAs are among the most important to use with caution.
Beta Hydroxy Acids (BHAs)
Salicylic acid is the most common beta hydroxy acid found in over-the-counter acne treatments.
Like AHAs, BHAs exfoliate the skin and promote cell turnover. Although salicylic acid can be highly effective for acne-prone skin, it may also contribute to irritation and heightened sensitivity when combined with sun exposure.
Benzoyl Peroxide
Benzoyl peroxide washes and acne treatments are widely used to reduce acne-causing bacteria and control breakouts. While benzoyl peroxide is not always considered a direct photosensitizer, it frequently causes dryness, flaking, redness, and skin irritation.
When the skin barrier becomes compromised, sun exposure can lead to more severe irritation and discomfort. Patients using benzoyl peroxide should be especially diligent about sunscreen use.
Hydroquinone and Other Skin-Lightening Agents
Hydroquinone is often prescribed or recommended to treat melasma, sun spots, and post-inflammatory hyperpigmentation.
Although effective, hydroquinone can sometimes irritate the skin. Ironically, if sun protection is neglected, UV exposure can worsen pigmentation issues and undermine treatment results. For this reason, dermatologists routinely recommend combining hydroquinone with strict daily sun protection.
Do Essential Oils Heighten Sun Sensitivity?
Some medical professionals have noted that certain essential oils can make the skin significantly more sensitive to sunlight through a reaction known as “phototoxicity.” Phototoxic reactions occur when compounds within an ingredient interact with UV light, leading to inflammation and skin damage.
Some of the most common phototoxic essential oils include citrus-derived oils such as:
- Lemon oil
- Lime oil
- Bergamot oil
- Grapefruit oil
- Bitter orange oil
When these oils are applied to the skin and subsequently exposed to sunlight, they can cause significant redness, burning, scaling, blistering, and dark discoloration. Because of these risks, products containing citrus essential oils are often best reserved for nighttime use or avoided before prolonged outdoor activities.
If you use essential oils as part of your skincare routine, always check ingredient labels carefully and discuss any concerns with your dermatologist.
What Medications Increase Sun Sensitivity?
Many patients are surprised to learn that prescription medications can also increase their risk of sunburn and photosensitivity reactions. Here are some of the most common categories of medication that makes you more sensitive to the sun.
Oral Antibiotics
Several antibiotics are known to increase sun sensitivity, including:
- Doxycycline
- Minocycline
- Tetracycline
- Sulfamethoxazole-trimethoprim
These medications can make the skin react more intensely to UV radiation, causing severe sunburns after relatively short periods outdoors. For patients taking these medications, sun protection becomes especially essential during treatment.
Blood Pressure Medications
Certain medications used to manage hypertension can also contribute to photosensitivity. Examples include Hydrochlorothiazide, some diuretics, and certain calcium channel blockers. These medications may alter the skin’s response to sunlight, increasing the likelihood of burning, irritation, or rashes.
If you’re taking one of these medications for high blood pressure and notice unusual skin reactions after sun exposure, discuss your symptoms with your prescribing physician or dermatologist.
Isotretinoin (Accutane)
One of the most frequently discussed medications in dermatology is isotretinoin, commonly known by the former brand name Accutane.
Questions about isotretinoin and sun exposure are extremely common because the medication often causes significant skin dryness, peeling, increased skin fragility, and irritation. While isotretinoin does not necessarily make everyone dramatically more photosensitive, the skin changes it causes can make sunburns more likely and more uncomfortable.
Therefore, patients taking isotretinoin should take extra precautions when spending time outdoors and follow their dermatologist’s sun safety recommendations regarding sunscreen and protective clothing.
How to Protect Your Skin if Using Photosensitive Ingredients
If you’re feeling overwhelmed by this list, the good news is that you don’t necessarily need to stop using effective skincare products or medically necessary medications. Instead, you can take proactive steps to protect your skin. These sun protection measures should be followed as closely as possible, regardless of whether you are using products or medicines with photosensitive ingredients or not.
Use Broad-Spectrum Sunscreen Every Day
Sunscreen is one of the most important tools for preventing photosensitivity reactions. Make sure to choose a broad-spectrum sunscreen that has an SPF of at least 30 and protects against both UVA and UVB rays. Always apply 30 minutes before going outside and reapply every two hours when outdoors. Even on cloudy days, UV radiation can still affect your skin.
Wear Protective Clothing
Especially during peak sunlight hours, additional protection besides just sunscreen can go a long way to prevent sun damage. Consider wearing such items as wide-brimmed hats with UPF protection, long-sleeved shirts, lightweight sun-protective clothing, and UV-blocking sunglasses. These measures can dramatically reduce your overall UV exposure.
Adjust Application Timing When Possible
With many photosensitive skincare products, nighttime application may help reduce sun-related irritation. Products such as retinoids, AHAs, BHAs, and certain essential oil formulations are often best applied as part of an evening skincare routine.
While medication schedules should never be changed without medical guidance, adjusting when you apply topical, over-the-counter products when possible may help minimize sun sensitivity. If following any sort of prescribed treatment regimen, be sure to discuss with your doctor before changing your routine.
Monitor Your Skin Carefully
Pay attention to signs that your skin may be reacting to a product or medication. Watch for such signs as excessive redness, burning, peeling, itching, or increased skin sensitivity. If significant irritation develops, discontinue the product if appropriate, get out of the sun, and contact your dermatologist for guidance.
Get Expert Help for Photosensitivity Concerns
Photosensitivity can be frustrating, especially when you’re using skincare products or medications that are otherwise beneficial for your skin or overall health. Understanding which ingredients may increase sun sensitivity can help you make informed decisions and avoid unnecessary skin damage.
If you’re experiencing unusual reactions to sunlight or have questions about photosensitive skincare products and medications, the team at Vujevich Dermatology Associates is here to help. We proudly provide comprehensive medical dermatology services to patients throughout the greater Pittsburgh area and can help you find effective treatment options while keeping your skin healthy and protected year-round. You can reach our team at (412) 429-2570 or visit our contact page to see all of our locations in the greater Pittsburgh area. You can also follow us on Facebook and Instagram to see what’s new in the world of dermatology.