How Often Should I Reapply Sunscreen If I Don’t Go Outside?

Imagine the weekend is here, and you are lazing around, binge-watching your favorite show on Netflix, and eating bowls of snacks. You have your PJs on, and you don’t believe in putting on a decent dress at all. 

Moreover, you have no intention of brushing your hair or applying sunscreen for your face. 

While the rest of the actions are perfectly acceptable, is not using sunscreen indoors the right and healthy approach?

To answer this question, we reached out to experts to ask them how often to reapply sunscreen when you don’t leave your home at all. Keep reading as we enlighten you with some interesting facts. 

Woman putting sunscreen on her hands for skin protection.

Why Do You Need Sunscreen for Face?

Before we dive directly into sunscreen’s proper use, let’s first understand why sunscreen is called a power player in our daily skincare regimen. 

Sunscreens are one of the best skincare inventions ever. They are the best protectants against harmful sun rays. Also, a regular application of sunscreen prevents dangerous sunburns and early skin aging. 

If that wasn’t enough, sunscreens reduce skin cancer probability and protect sensitive skin against many medical reactions.

Every day, a sunscreen application absorbs ultraviolet radiation and forms a layer to prevent them from entering the inner layers of the skin.

However, just because you have sunscreen on your face doesn’t mean you can stay outside for as long as you want. 

Sunscreens, although effective, don’t absorb all the sun’s ultraviolet radiation. You need to apply sunscreen after every two hours to save your skin from the monstrous rays. 

But what if you haven’t left your home at all? Do you still need to apply a layer of sunscreen over your face?

Is It Essential to Apply Sunscreen While at Home?

According to Joyce Parks, a renowned dermatologist, “It’s a common misconception that you don’t need to wear sunscreen when you’re indoors.” Many of us think that we are safe from all kinds of harmful sun rays just because we are home.

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Unfortunately, this concept isn’t completely true, and it’s about time we make it clear here. 

Even if you are staying home all day, ultraviolet rays can penetrate through glass windows and into your skin. If you are sitting near a window, you directly absorb the rays without even stepping out.

Moreover, sitting inside in front of a computer screen or your phone is also not great for your skin. Why? According to a recent study, staring at a screen for 20 minutes straight causes the same kind of harm as staying outside under the sun for a short duration.  

All computers, smartphones, and tablet screens emit blue light that can cause unimaginable damage to our skin. This light increases the risk of hyperpigmentation and can lead to premature aging. 

So, even if your curtains are down and there is no sunlight inside, you still need to apply sunscreen to save yourself from the harmful screen rays. 

Now, this brings us to your next question: How often should I reapply sunscreen if I am inside?

How Often Should You Reapply Sunscreen While Indoors?

As per the theory, you should apply sunscreen after every two hours when you are outside. It is because your skin’s oil disrupts the sunscreen layer and removes it from your face. Moreover, excessive sweating also eliminates the protection layer. 

However, while at home, you don’t sweat much, nor your skin gets too oily. In that case, reapplication depends on where you are sitting. If that’s near a window, the two-hour rule applies here as well. The same goes if you stare at a screen for a long time.

But if your ultraviolet exposure is very minimum, choose to apply sunscreen after every four to five hours while inside. 

What Kind of Sunscreen Is Best for an Indoor Use?

When it comes to using sunscreen, Dr. Joshua Zeichner recommends a moisturizer with a spectrum of SPF 30. However, the chosen sunscreen should be suitable for your skin type.

You can either go for chemical sunscreen or mineral sunscreens. Unlike mineral sunscreens, chemical sunscreens absorb in your skin and may have a negative impact. The ingredients in a chemical sunscreen may hurt your reproductive system, ovaries, and endocrine system. 

While chemical sunscreens are far more effective, the possible implications on your body might make them less safe.  

What Is the Right Way to Apply Sunscreen?

For the correct application, follow the instructions given on the sunscreen package. 

Generally, apply sunscreen 30 minutes before you plan to sit in a room with windows. Apply generously on all exposed areas. 

While you apply, cover your eyes. Sunscreens are harmful to the eyes. In case of accidental contact, wash your eyes as soon as possible. 

Sunscreen bottle for skin.

What if You Don’t Want to Apply Sunscreen at Home?

The application of sunscreen is non-negotiable. However, if you still don’t feel like it, move your chair away and draw all the curtains. Switch off your screens and close all the doors. 

If you can do that, you may skip sunscreen for a day. 

However, staying away from the sun is quite unhealthy. Sunlight is the best source of Vitamin D. You need this vitamin for your strong bones and muscles. 

Sunlight exposure is vital. And to enjoy that, you need to apply some sunscreen.

Final Words

In a nutshell, sunscreen is a necessity to save yourself from the harsh ultraviolet rays. It doesn’t take any effort to apply sunscreen to your face. Even if you are too lazy to move out of your bed, grab a sunscreen bottle and use it. 

There is nothing important than your skin’s health. Invest in an effective sunscreen and enjoy the bright sunlight without any worries. 

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