Differences between natural and conventional sunscreen

Sun protection is essential to protect our skin from the sun’s harmful UV rays. However, there are a wide variety of products on the market, including natural and conventional sunscreens. What are the main differences between the two? Which one is best for you?

Conventional sunscreens have long been the most common choice. These products use chemical filters to absorb UV radiation and dissipate it as heat. They are proven effective and offer a wide range of sun protection factors (SPF).

Natural sunscreens, on the other hand, use mineral filters such as zinc oxide or titanium dioxide to create a physical barrier that reflects UV rays. These products are generally kinder to the skin and the environment.

The choice between a natural or conventional sunscreen will depend on your personal needs and preferences. If you have sensitive skin or are looking for a more environmentally friendly product, natural sunscreens can be a great option. However, if you prioritize effectiveness and ease of application, conventional sunscreens may be more suitable.

• Natural sunscreen:
  • Ingredients derived from plants, minerals, or other natural resources.
  • They generally do not contain synthetic chemicals.
  • Examples: zinc oxide, titanium dioxide.
• Conventional sunscreen:
  • It uses chemical ingredients like oxybenzone and avobenzone.
  • Formulated to absorb and neutralize UV ​​rays.
  • They often contain other additives such as fragrances and preservatives.

Each type has unique characteristics and different modes of action.

Definition of Natural Sunscreen

Natural sunscreen is defined as products formulated with plant and mineral ingredients. These do not contain synthetic chemicals or hormone disruptors.

Main features:

• Mineral filters: Usually zinc oxide or titanium dioxide.
• Natural ingredients: Plant oils and extracts such as calendula, aloe vera and green tea.
• No chemical preservatives: Avoid parabens, phthalates and artificial fragrances.

Additional benefits:

1. Less environmental impact: They do not pollute oceans or reefs.
2. Hypoallergenic: Reduces the risk of allergic reactions.
3. Smoothness: Suitable for sensitive skin and children.

Definition of Conventional Sunscreen

A conventional sunscreen is a product formulated with chemical ingredients that absorb ultraviolet (UV) rays from the sun. These chemical filters include:

• Oxybenzone
• Octinoxate
• Avobenzone
• Octocrylene
• Homosalate

Conventional sunscreens contain preservatives and synthetic fragrances. Their active ingredients work by penetrating the skin and transforming UV rays into heat, which is then released by the body. They generally offer a light texture and are easy to apply. They also come in various forms, such as lotions, sprays, and gels. Dermatologists recommend their use to prevent sunburn and reduce the risk of skin cancer.

Common Ingredients in Natural Sunscreens

Natural sunscreens contain ingredients derived from natural sources that offer effective UV protection. These ingredients include:

• Zinc oxide: A mineral that provides broad spectrum protection against UVA and UVB rays.
• Titanium dioxide: Another mineral that acts as a physical blocker of the sun’s rays.
• Coconut oil: With moisturizing properties and a limited ability to block UV rays.
• Shea butter: Moisturizing and nourishing, with some sun protection benefits.
• Raspberry seed oil: Contains antioxidant properties and a natural sun protection factor.

Common Ingredients in Conventional Sunscreens

Conventional sunscreens often contain chemical ingredients to provide protection. These ingredients are divided into organic and inorganic UV filters.

Organic UV Filters

• Oxybenzone
• Octinoxate
• Avobenzone
• Octocrylene

Inorganic UV Filters

• Titanium dioxide
• Zinc oxide

Other ingredients in the formulation include:

• Synthetic fragrances: used to provide a pleasant aroma.
• Parabens: preservatives that extend the shelf life of the product.
• Silicones: improve texture and water resistance.

Benefits of Using Natural Sunscreens

1. Safe Ingredients: Natural sunscreens use ingredients derived from plants and minerals, reducing the risk of skin irritation and allergic reactions.
2. Environmentally friendly: Lacking harsh chemicals, natural sunscreens do not harm marine ecosystems or coral reefs.
3. Broad Spectrum Protection: They offer effective protection against UVA and UVB rays using minerals such as zinc oxide and titanium dioxide.
4. Antioxidant Benefits: Many contain plant extracts with antioxidant properties that help combat the effects of aging caused by the sun.
5. Suitable for Sensitive Skin: Containing no synthetic fragrances or parabens, they are an ideal choice for people with sensitive skin or dermatological conditions such as eczema.

Benefits of Using Conventional Sunscreens

Using conventional sunscreens offers numerous benefits.

• Broad spectrum protection: These products protect against UVA and UVB rays.
• Availability: They are easily found in supermarkets and pharmacies.
• Effectiveness: Its chemical formulation guarantees high efficiency and durability.
• Variety: There are options for different skin types and specific needs.
• Cost: They are generally cheaper than natural sunscreens.
• Water resistance: Many are formulated to be water resistant.

Conventional sunscreens, being widely available and effective, are a popular choice for many consumers.

UV Efficiency and Protection: Natural vs. Conventional

UV protection and efficiency are key factors when choosing a sunscreen. Natural sunscreens typically use mineral ingredients such as zinc oxide and titanium dioxide. These work by reflecting and scattering UV rays, offering:

• Broad spectrum protection.
• Immediate action after application.
• Lower risk of skin irritation.

On the other hand, conventional sunscreens usually contain chemical filters, such as avobenzone and octinoxate. These:

• They absorb and convert UV rays into heat.
• They need about 20 minutes to activate.
• They can cause allergic reactions on sensitive skin.

Environmental Impact: Differences and Considerations

The environmental impact of natural and conventional sunscreens varies significantly:

• Ingredients:
  • Natural: They use minerals such as zinc oxide or titanium dioxide.
  • Conventional: They contain chemicals such as oxybenzone and octinoxate.
• Marine Ecosystems:
  • Natural: Less likely to damage coral reefs.
  • Conventional: Chemical ingredients can be toxic to marine life.
• Biodegradability:
  • Natural: Greater tendency to be biodegradable.
  • Conventional: May contain microplastics and other non-biodegradable components.
• Manufacturing:
  • Natural: Generally less polluting process.
  • Conventional: Production can generate more pollution.

Health Effects: Comparison between Natural and Conventional

The use of natural and conventional sunscreens shows differences in their effects on health. Conventional sunscreens often contain:

• Oxybenzone
• Octinoxate
• Avobenzone

These ingredients can interfere with the endocrine system. In contrast, natural protectors use:

• Zinc oxide
• Titanium dioxide

These ingredients offer a physical barrier without affecting the hormonal system. In addition, natural products are usually free of:

• Parabens
• Synthetic fragrances

People with sensitive skin may find natural sunscreens less irritating, given their focus on hypoallergenic ingredients.

Factors to Consider When Choosing a Sunscreen

When selecting a sunscreen, it is essential to evaluate several factors:

• Skin type: Sensitive skin may respond better to natural products without fragrances or chemicals.
• Active ingredients: Products with zinc or titanium dioxide offer physical protection; chemicals such as avobenzone provide chemical protection.
• SPF (Sun Protection Factor): An SPF of 30 or higher is recommended for adequate protection against UVB rays.
• Application type: Creams usually offer more even coverage, while sprays may be more convenient.
• Water resistance: Essential for outdoor activities and swimming.
• Environmental impact: Consider eco-friendly products that do not harm corals or the marine ecosystem.

Ambientum Editorial