Should You Keep Your Filler Results Out of the Sun?

Updated for 2026

Dermal fillers have grown in popularity over the last few years, ranking as the second most common nonsurgical aesthetic procedure performed year after year, with BOTOX being the most common.

This minimally invasive procedure helps to address early signs of aging, such as lost facial volume, fine lines and wrinkles, with little to no downtime. However, that doesn’t mean you are free and clear to do whatever you want after having dermal filler injections. In fact, to get the most out of your dermal fillers, you may need to avoid the outdoors and sunshine for a little while.

Here’s the rundown on why it’s so important to stay out of the sun after getting fillers, along with some tips on timing, sunscreen choices and other things you can do to get the most out of your filler results.

What Are Dermal Fillers?

Most dermal fillers contain hyaluronic acid. This material provides the plumping effect that fillers offer to increase volume or smooth out fine lines and wrinkles. Unfortunately, however, UV rays from the sun and tanning beds can degrade both natural levels of hyaluronic acid and the material used in your dermal filler treatment.

This degradation can affect the results of your dermal filler, worsen or cause skin reactions and slow down the healing process. Thus, Dr. Chang and Dr. Wang will ask that you avoid exposure to UV rays for at least a week or two after your dermal filler treatments to ensure you see the best results.

How Long to Avoid the Sun, Week by Week

“One to two weeks” is a good rule of thumb for avoiding sun exposure after fillers, but it can be helpful to understand exactly what is going on behind the scenes, so to speak, during each week so you can better judge which outdoor activities to skip and when.

The first 48 hours after fillers are when your skin is going to be the most vulnerable. Swelling, redness and bruising are common during this window, and sun exposure can make all three worse while also increasing the risk of irritation at the injection sites. This is the time to stay indoors or in the shade as much as possible.

Days 3 through 7 are when the filler begins settling into place and any initial swelling starts to resolve. Your results are not fully established yet, so UV exposure during this stretch can still interfere with how evenly the filler integrates and how quickly it starts to break down.

Week 2 and beyond is when your results are essentially settled, but that does not mean you are in the clear. This is when daily SPF becomes less about protecting healing skin and more about protecting your investment. Since UV exposure is what degrades hyaluronic acid over time, sticking with sunscreen well past the two-week mark is what actually helps your filler last closer to its full 6- to 12-month lifespan.

What’s the Best Sunscreen to Use after Fillers?

One of the most common questions we hear from filler patients is whether they should be using a chemical or mineral (physical) sunscreen. Chemical sunscreens absorb into the skin and convert UV rays into heat, while mineral sunscreens made with zinc oxide or titanium dioxide sit on top of the skin and reflect UV rays away. Mineral formulas tend to be gentler, which can make them a good choice if your skin is feeling sensitive, freshly injected or prone to irritation, since they start working immediately and are less likely to cause stinging.

That said, the best sunscreen is the one you will actually remember to put on every single day. If a lightweight chemical formula is what gets you to wear SPF consistently, it will do more for your filler results than a mineral sunscreen sitting unused in a drawer. What matters most is broad-spectrum protection of at least SPF 50, applied daily and reapplied if you are outdoors for an extended period. Any sunscreen worn consistently will outperform the “perfect” sunscreen worn occasionally.

Overview: Taking Care of Your Dermal Filler Results

While dermal filler treatments do not require any specific downtime, they require time to heal. During the healing process, keep these general tips in mind:

• Avoid sun exposure for at least one week after your dermal filler procedure.
• Always wear an SPF of at least 50, even if you are not intending on going out in the sun.
• If you do go out, shield your face with a hat.
• Avoid strenuous activity and increases in body temperature for at least 48 hours as this can increase the risk of bruising, swelling, and discomfort.
• Follow your providers’ after-care instructions.

Considering Dermal Fillers?

Dermal fillers for both the face and the lips offer a minimally invasive option that helps turn back the clock and deliver the results you are looking for. While there is no downtime with these fillers, it is important to avoid sun exposure immediately following your dermal filler treatment.

To learn more about how dermal fillers can help you achieve your goals, call our Columbia, MD office at 410-740-9330 or get in touch with us online to schedule an appointment today.