When most of us think about sunscreen, we think about our face, shoulders, arms, and legs. But there’s one small area that often gets left out: our lips.
Your lips are exposed to the same ultraviolet (UV) radiation as the rest of your face, yet they have some characteristics that make them particularly important to protect. The skin of the lips is thinner than the skin on many other parts of the body, and the lips contain less melanin—the pigment that provides some natural protection from UV radiation. The lower lip, in particular, receives a lot of sun exposure because of its position.
That makes lip SPF more than just another item to add to your skincare routine. It is a simple way to include your lips in your overall sun-protection habits.
Why Do Your Lips Need SPF?
The lips are skin, and skin can be affected by UV radiation. Repeated, unprotected sun exposure can contribute to sunburn, dryness, premature changes, and an increased risk of skin cancer.
The American Academy of Dermatology specifically recommends protecting the lips with a lip balm or lipstick containing SPF 30 or higher. The FDA also includes the lips in the commonly forgotten areas where sunscreen should be applied.
Lips can also burn. If you've ever spent a sunny day outdoors and ended up with unusually dry, tender, or peeling lips afterward, UV exposure may have been part of the problem.
And unlike the rest of your face, your lips don't typically get a generous layer of facial sunscreen applied to them. They're also constantly exposed to eating, drinking, talking, licking, and wiping—all of which can remove a protective product.
In other words, your lips need their own sun-protection strategy.
The Benefits of Wearing SPF on Your Lips
1. It helps protect against sunburn
SPF is designed to reduce UV exposure that can cause sunburn. Applying an SPF lip product gives your lips a layer of protection rather than leaving them completely exposed.
For everyday use, dermatologists recommend choosing broad-spectrum SPF 30 or higher. Broad spectrum means the product protects against both UVA and UVB radiation.
2. It helps protect against UV-related skin damage
UV exposure accumulates over time. Sunscreen isn't just about preventing an obvious sunburn; regular sun protection can help reduce cumulative UV damage and the premature skin changes associated with it.
The lips aren't exempt from that process. Consistently protecting them is one small part of a larger sun-safe routine.
3. It helps protect an often-forgotten area from skin cancer
Skin cancer can develop on the lips. That's one of the most important reasons to make lip SPF part of your routine.
The Skin Cancer Foundation notes that regular sunscreen use can help reduce the risk of skin cancers, while the AAD specifically recommends SPF 30 or higher on the lips.
Lip SPF shouldn't be viewed as a guarantee against skin cancer, of course. Sun protection works best as part of a bigger strategy that includes shade, protective clothing, hats, and sunglasses.
4. It can help keep lips comfortable
Sun exposure can contribute to dry, irritated lips. Many SPF lip products are formulated with moisturizing ingredients such as plant oils, butters, waxes, or other emollients.
So you're getting two useful things in one product: moisture and sun protection.
Just remember that a moisturizing lip balm without SPF isn't a substitute for sun protection.
What Makes a Good Lip SPF?
When choosing a product for your lips, the same basic sunscreen principles apply.
Look for SPF 30 or higher
SPF measures protection primarily against UVB, the type of UV radiation most associated with sunburn. SPF 30 is a good everyday minimum recommended by dermatologists.
Higher SPF products can be useful when you're going to be spending extended periods outdoors, but no SPF eliminates UV exposure completely.
Choose broad-spectrum protection
This is an important one.
Broad-spectrum means the sunscreen protects against both UVA and UVB radiation. UVA contributes to premature skin aging and also plays a role in skin cancer, while UVB is the primary cause of sunburn.
Consider water resistance
If you're going swimming, exercising, or spending a lot of time outdoors in hot weather, a water-resistant lip SPF can be especially useful.
Keep in mind that water-resistant does not mean waterproof. Sunscreen products eventually wear away, and they need to be reapplied after activities such as swimming or heavy sweating.
Don't forget the formula itself
The best lip SPF is one you'll actually use consistently.
If you dislike a thick, waxy product, you're unlikely to reach for it. If you don't like the taste or smell, the same thing applies. Look for a texture that feels comfortable and fits naturally into your routine.
Some people prefer a classic balm, while others like a glossy finish, tinted balm, lip oil, or lipstick with SPF.
Consistency matters more than having the fanciest format.
How to Wear Lip SPF With Lip Color
You don't have to choose between protecting your lips and wearing your favorite lipstick. One easy approach is to apply an SPF lip balm first and allow it to settle for a few minutes. Then apply your lipstick or lip color on top. Another option is to use a lipstick, tinted balm, or lip gloss that already contains SPF.
For longer periods outdoors, however, remember that your lip SPF still needs to be reapplied. A morning application underneath lipstick won't necessarily protect you for the entire day. If you're using a regular lip color without SPF, you can reapply your SPF balm throughout the day and then refresh your color afterward. The American Academy of Dermatology recommends reapplying SPF lip balm every two hours while outdoors and after eating, swimming, sweating, or licking your lips.
And if you use a lip product containing SPF, don't apply it only once and assume you're covered all day. Eating, drinking, wiping your mouth, and normal wear can remove it.
Do You Need Lip SPF All Year?
Absolutely.
UV radiation doesn't take the winter off, and it doesn't disappear when the sky is cloudy. The AAD notes that the sun emits harmful UV rays year-round, and up to 80% of UV radiation can penetrate clouds.
That means lip SPF isn't just for beach vacations.
Summer
This one is obvious. Longer days, outdoor activities, swimming, vacations, and increased time in direct sunlight make lip SPF particularly important.
Winter
Cold weather doesn't mean UV protection is unnecessary. Snow can reflect UV radiation, increasing exposure, and outdoor winter activities can leave your lips exposed for hours.
Spring and Fall
These seasons can be deceptive because temperatures may feel comfortable while UV exposure is still significant. A walk, outdoor sporting event, hike, or afternoon spent on a patio can add up to plenty of sun exposure.
Cloudy Days
Clouds don't block all UV radiation. If you're going to be outdoors, your lips can still benefit from SPF even when the sun isn't shining brightly.
SPF & LIP FAQs
Can I use regular facial sunscreen on my lips?
It's better to use a product specifically formulated and labeled for the lips. Lip products are designed with the unique texture and habits of the area in mind, while sunscreen labels may tell you to avoid the mouth.
Is SPF 15 enough for lips?
SPF 15 does provide some protection, but dermatologists recommend at least SPF 30.
Does lip gloss protect against the sun?
Not unless it contains sunscreen and is labeled with an SPF. Shine alone does not provide dependable UV protection.
Can I wear lipstick over SPF lip balm?
Absolutely. Apply your SPF lip product first, then your lipstick or gloss. Remember that you'll still need to reapply your SPF as it wears away.
Do I need SPF on my lips when it's cloudy?
Yes. UV radiation still reaches your skin on cloudy days. The AAD notes that up to 80% of the sun's harmful UV rays can penetrate clouds.
Should I use lip SPF in winter?
Yes. UV exposure occurs year-round, and snow can reflect UV radiation. Outdoor winter activities can expose your lips to significant amounts of sunlight.
How often should I reapply lip SPF?
When outdoors, reapply at least every two hours and sooner after eating, drinking, swimming, sweating, or licking your lips.
Can SPF lip balm help prevent dry lips?
Many SPF lip balms contain moisturizing ingredients and can help keep lips comfortable, but the moisturizing benefits depend on the specific formula. SPF itself is for UV protection, not hydration.
Is mineral or chemical SPF better for lips?
Both mineral and chemical sunscreen filters can be used in effective sunscreen formulations. Rather than focusing solely on the type of filter, look for a product that provides broad-spectrum SPF 30+ protection, feels comfortable, and is one you'll actually use consistently.
Image credits: Pexels/Shiny Diamond (featured), Pexels/RDNE Stock Project (cover)
References: American Academy of Dermatology, The Skin Cancer Foundation, FDA
