Online store

Sunscreen - Physical or chemical protection?

Physical or chemical sun protection? Which one should you choose?

By Rebecca Bergetun, Nurse - Cosmetic Nurse •
Professional review: This article has been reviewed by Rebecca Bergetun, Nurse - Cosmetic Nurse at TBL Medical.

When it comes to sun protection, many consumers are faced with the choice between physical and chemical sunscreens. These products offer essential protection against harmful UV rays, but work in markedly different ways. This article explores the differences between physical and chemical sunscreens, their advantages and disadvantages, the controversies surrounding them, and their environmental impact.

You can purchase high-quality sunscreens from our online store: shop.tblmedical.no

What are physical and chemical sunscreens?

Physical Sunscreen

Physical sunscreen, also known as mineral sunscreen, contains active mineral ingredients—most often titanium oxide or zinc oxide. These minerals work by sitting on the surface of the skin and reflecting away UV rays.

Chemical Sunscreen

On the other hand, chemical sunscreens contain organic compounds such as oxybenzone, avobenzone, and octocrylene, which absorb UV radiation through a chemical reaction that converts UV rays into heat.

The difference between physical and chemical sunscreen

Physical sunscreen: See selection of physical sunscreens

  • Reflects the sun's rays.
  • Begins to work immediately after application.
  • It is often thicker in consistency and can leave a white film on the skin.

Chemical sunscreen: See selection of chemical sunscreens

  • Absorbs and converts UV rays into heat.
  • Takes approximately 20 minutes to start working effectively.
  • Has a lighter consistency and is less visible on the skin.

Advantages and disadvantages:

Advantages of physical sunscreen

  • No chemical reaction with the skin: Physical sunscreen works by physically blocking the sun's rays, reducing the risk of skin irritation for those with sensitive skin.
  • Long-lasting protection: Since they do not break down in the sun in the same way as chemical sunscreens, physical sunscreens often offer longer-lasting protection during direct sun exposure.
  • Immediate effect: No waiting time is necessary; protection begins as soon as it is applied to the skin.
  • Less likely to clog pores: Often better for those with acne-prone skin as they are less likely to clog pores compared to chemical sunscreens.

Advantages of chemical sunscreen

  • More comfortable on the skin: Chemical sunscreen has a lighter texture that many find more comfortable to use; it absorbs quickly and leaves no visible residue.

  • Wider range of formulations: Chemical sunscreens can be more easily combined with other skin care ingredients, such as moisturizers and antioxidants, making them more versatile.

  • Better for intense activity: They are often recommended for use during intense physical activity, including water sports, as they do not wash off as easily.

     

Disadvantages of physical sunscreen

  • Heavier feel and visibility: May feel heavier on the skin and leave a white film, especially on darker skin tones.
  • Washes off more easily: May require more frequent application, especially after swimming or sweating, as they do not bind to the skin in the same way as chemical sunscreens.

Disadvantages of chemical sunscreen

  • Potential skin irritation: May cause allergic reactions or irritation, especially in those with sensitive skin.
  • Waiting time before effectiveness: Requires a waiting time of approximately 20 minutes to become fully effective after application.
  • Environmental considerations: Certain chemicals in sunscreens are linked to damage to aquatic environments, including coral reef bleaching.

Controversies

There have been concerns about the safety of certain chemical UV filters, which have been linked to endocrine disruption and other health problems. This debate continues in scientific circles and among consumer organizations.

The Environmental Aspect of Chemical Sunscreens

Chemical sunscreens have been criticized for their potential harmful effects on marine ecosystems, especially coral reefs. Ingredients such as oxybenzone have been shown to be toxic to corals and contribute to coral bleaching.

Conclusion

Although both physical and chemical sunscreens have their unique advantages and situations where they are best suited, it is essential to choose products that are safe for both the user and the environment. At TBL Medical, we are committed to offering only sunscreens that have been thoroughly evaluated and recognized as safe for both the body and the environment. We believe in giving our customers peace of mind by offering products that not only protect against the sun's harmful rays, but also take into account the well-being of our planet.

The choice between physical and chemical sunscreen should be based on personal preferences, skin type, and environmental considerations. It is important to choose sunscreens that are effective and safe for both your skin and the environment. By making informed choices, we can all enjoy the sun responsibly.

 

Skin