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  • Which Sunscreen Is Better SPF 30 Or 50? What You Need To Know

Have you ever found yourself standing in the sunscreen aisle, completely confused about which sunscreen is better SPF 30 or 50? You’re not alone. Choosing the right sunscreen can feel overwhelming, especially with so many options promising to guard your skin from the sun’s harmful rays.

No worries! By the end of this article, you’ll better understand which SPF level is right for you and why. With this, you no longer feel confused about whether you should go for an SPF 50 clear zinc sunscreen or an SPF 30 natural tinted sunscreen to go along with your natural daily moisturiser. Here’s what you need to know about SPF in sunscreen. 


A closer look at SPF values 

When it comes to skincare, specifically sun protection, we come across the term Sun Protection Factor or SPF quite often. The SPF value in a sunscreen determines the duration it can protect your skin against UVB radiation. The higher the SPF, the more your skin is protected. 

Understanding these percentages can be of great help when choosing between SPF 30 and SPF 50. SPF 30 screens about 96.7% of UVB rays, while SPF 50 blocks approximately 98%. 


The question of protection level

The difference in protection between SPF 30 and SPF 50, just around 1%, may seem insignificant. Still, that 1% can accumulate over time, particularly when we factor in environmental considerations, such as the intensity of sunlight during various times of the day, weather conditions and an individual’s geographical location. 

However, the use of either SPF 30 or SPF 50 may also depend on the user’s skin type, sensitivity and how much time they spend exposed to sunlight. Both provide solid protection against harmful UV rays when applied correctly and frequently. 

A thorough understanding of SPF levels, their practical applications and the user’s unique skincare needs on a day-to-day basis is integral to making an informed decision. 

Emphasis must be placed on the importance of regular reapplication of sunscreen, regardless of its SPF level. 


Importance of regular reapplication

Let’s debunk a myth: a higher SPF doesn’t mean you can skimp on reapplication. It’s not an all-day pass shielding you from the sun. The truth is, no matter the SPF rating, regular reapplication is vital. The key to real sun protection is not just a high SPF, but consistency. It’s recommended to reapply your sunscreen every two hours, or straight after swimming, sweating or towel-drying.


Efficacy of SPF 50 for prolonged outdoor activities

For outdoor aficionados who delight in prolonged, sun-soaked activities, SPF 50 is typically ideal. Wearing sunscreen with SPF 50 means your skin has a heightened line of defence against UVB radiation, thus guarding against the risk of sunburn. 

For those who often find themselves basking in the sun for extended periods, SPF 50 can offer a heightened level of protection. Whether you’re enjoying alpine skiing or beach outings, SPF 50 proves truly valuable.

In conclusion, the effectiveness of SPF 50 for those engaging in prolonged outdoor activities is undeniable. However, don’t fall into the trap of thinking a higher SPF shields you throughout the day. Regular reapplication is vital to ensure maximum protection. 

So remember, make your sunscreen your best companion, and keep reapplying!


The environmental cost

Sunscreens with harmful ingredients – regardless of their SPF content – can be particularly damaging to our already fragile marine ecosystems. When these chemicals wash off in the sea, they disturb the reproduction and growth of aquatic life, including our beautiful coral reefs, causing them to bleach and die off.

Before you reach for sunscreen on your next beach day, remind yourself about the larger picture. Protection from the sun’s UV rays is crucial but shouldn’t come at the cost of endangering our health and the planet we call home.


Reef-friendly and non-nano formulation

For those looking to protect their skin without harming marine life, reef-friendly and non-nano sunscreens offer an excellent alternative. These formulations consider two critical environmental concerns: protecting coral reefs and avoiding the use of nanoparticles.

Many conventional sunscreen ingredients can harm coral reefs, contributing to the bleaching crisis. By choosing reef-friendly ingredients, the impact on underwater ecosystems is minimised. This helps preserve the vibrant marine life and delicate coral structures essential for ocean health.

Additionally, non-nano particles are preferred over nanoparticles. Nanoparticles, due to their tiny size, can infiltrate marine organisms, posing potential environmental hazards. Non-nano formulations stay on the skin’s surface, reducing the risk to marine ecosystems.

Opting for reef-friendly sunscreen is a step toward a healthier planet. These sunscreens provide protection against UV rays while being gentle on the environment. Making this conscious choice supports both your skin’s health and the preservation of our precious marine habitats.


Choosing the right SPF and protecting the environment

When it comes to selecting the right sunscreen, understanding the difference between SPF 30 and SPF 50 is crucial. Both offer substantial protection, with SPF 50 providing slightly higher coverage, often ideal for prolonged outdoor activities. However, the key to effective sun protection lies in regular reapplication, regardless of SPF level.

In addition to choosing the right SPF, it’s important to consider the environmental impact of your sunscreen. Opting for reef-friendly, non-nano sunscreens allows you to protect your skin while minimising harm to marine ecosystems. These formulations avoid harmful ingredients that can damage coral reefs and marine life, providing a responsible choice for sun protection.

By making informed decisions about SPF levels and choosing reef-friendly options, you can enjoy the sun responsibly, ensuring both your health and the health of our planet are safeguarded.


Key Points to Remember

  • SPF 30 and SPF 50 both offer significant protection against UVB rays. The higher SPF provides slightly more coverage, which can be beneficial for prolonged outdoor activities.
  • Regardless of whether you choose SPF 30 or SPF 50, consistent reapplication is crucial for effective sun protection. 
  • When choosing a sunscreen, it's important to consider natural formulations to protect marine ecosystems. 


Dedicated to fostering a better tomorrow, Little Urchin merges love for nature and community through our premium suncare products. We use high-quality ingredients for skin protection, nourishment and the sustainable well-being of future generations.