The hidden dangers of too much sun—and how smart UV protection can help keep horses healthier from nose to tail.

There’s nothing quite like seeing horses out in pasture on a bright summer day—heads down grazing, tails swishing, soaking up sunshine. But while turnout is essential for a horse’s physical and mental well-being, too much sun exposure can create serious health concerns, especially during long summer days and in regions with intense UV levels.

Many horse owners think of flies, heat, and hydration when temperatures climb—but UV protection is often overlooked, even though prolonged exposure can contribute to skin damage, eye issues, and painful inflammatory conditions.

The good news? Prevention can be simple—and it starts with smart protective gear.

At Kensington, products are designed to do more than keep flies off. With 73% UV-blocking protection built into select fly masks, protective sheets, and fly boots, Kensington gear helps reduce harmful UV exposure while keeping horses comfortable in turnout.

Here’s why that matters.

1) Photosensitization: When Sunlight Becomes Painful

One of the most common sun-related equine health problems is Photosensitization—a condition where skin becomes abnormally sensitive to sunlight.

Unlike a typical sunburn, photosensitization can cause a severe inflammatory reaction after UV exposure.

Symptoms may include:

• redness
• swelling
• crusting skin
• peeling
• painful lesions
• sensitivity to touch
• horses seeking shade or avoiding sunlight

Affected areas are usually places with lighter pigmentation or sparse hair, including:

• pink noses
• white facial markings
• pasterns
• around the eyes
• thin-skinned areas of the body

How Kensington helps:

A UV-protective fly mask with nose coverage, UV sheet, and UV fly boots create physical sun barriers over the areas most vulnerable to damage—helping reduce exposure before inflammation starts.

2) Sunburn & Chronic Skin Damage

Yes—horses absolutely get sunburn.

Light-skinned horses are particularly vulnerable, but any horse with white markings or exposed pink skin can burn.

Repeated UV exposure can lead to:

• painful redness
• dry cracking skin
• peeling
• soreness around the muzzle
• chronic irritation
• inflammation that weakens skin health over time

Over years, repeated sun damage may also contribute to precancerous skin changes.

Protection matters:

Kensington’s 73% UV-blocking turnout products help shade delicate skin while still allowing airflow, making sun protection practical for everyday turnout—not just special cases.

A UV protective fly mask, UV fly sheet, and UV fly boots work together to cover the face, body, and lower legs—three of the most exposed areas on a horse.

3) Squamous Cell Carcinoma (Skin Cancer)

One of the most serious sun-related conditions in horses is Squamous Cell Carcinoma—a form of skin cancer commonly linked to UV damage.

It’s often found in lightly pigmented areas such as:

• eyelids
• around the eyes
• muzzle
• lips
• genital areas

Early signs may include:

• non-healing sores
• crusty patches
• small growths
• ulcerated skin
• persistent irritation

Left untreated, squamous cell carcinoma can become aggressive and difficult to manage.

Prevention strategy:

Reducing daily UV exposure to sensitive skin is one of the best management practices available—which is where UV-blocking protective wear becomes more than convenience gear; it becomes wellness gear.

4) Eye Irritation & UV Stress

Horse eyes are constantly exposed to:

• bright sunlight
• glare
• wind
• dust
• pollen
• insects

Long-term UV exposure may contribute to:

• excessive tearing
• squinting
• inflammation
• discomfort
• increased sensitivity to light
• irritation around eyelids and delicate tissue

Some breeds—particularly light-skinned horses, Appaloosas, and blue-eyed horses—can be especially sensitive.

The simple solution:

A UV-blocking fly mask helps create a calmer, filtered visual environment while also protecting sensitive tissue around the eyes from flies and debris.

Comfort often improves quickly when horses get consistent eye coverage.

5) Lower Leg Sun Sensitivity

Horse owners often focus on noses and eyes—but white-legged horses can also be vulnerable.

Thin hair and lighter skin on lower legs can make pasterns and cannon areas more susceptible to:

• sun irritation
• dryness
• inflammation
• photosensitive skin reactions

Kensington’s UV-blocking fly boots help protect these exposed areas while also defending against flies and biting insects.

That’s dual-purpose protection.

Full-Body UV Protection, Designed for Turnout

At Kensington, protection works together:

Fly Masks

Protect eyes, face, and nose while blocking 73% of harmful UV rays

Fly Sheets

Help shade shoulders, topline, barrel, and hips from prolonged exposure

Fly Boots

Protect delicate lower legs and sensitive skin

Together, they create a breathable defense system built for real turnout—not bulky heat-trapping coverage.

Healthy Horses Start with Prevention

Sunshine is part of horse life—but overexposure doesn’t have to be.

By reducing UV exposure, owners can help support:

✓ healthier skin
✓ reduced irritation
✓ better eye comfort
✓ less inflammation
✓ lower risk of chronic sun damage
✓ improved turnout wellness

Because protection from flies is good.

Protection from the sun is even better.

With Kensington’s 73% UV-blocking fly masks, sheets, and boots, horses get coverage that works from ears to hooves—helping them stay healthier, happier, and more comfortable under the sun.