Continuous protection duo

Photoprotection is not limited to applying sunscreen in the morning.

Throughout the day, protection can decrease due to perspiration, sebum, friction, or contact with clothing.

This is ****why dermatologists recommend reapplying protection regularly, especially during prolonged exposure.

The Substance of Light routine has been designed to make this step easy.

The fluid is used in the morning as a moisturizing treatment with SPF50, PA++++, blue light, and pollution protection. The mist then allows you to easily reapply protection throughout the day, even over makeup or while on the go.

This combination helps maintain constant protection against the light-induced stressors that skin is exposed to daily.

Yes. The mist has been specifically developed to allow for reapplication of protection throughout the day, even when wearing makeup.

Its spray format and fine mist allow the product to be applied easily without disturbing makeup.

The mist thus helps to reinforce sun protection throughout the day, an important step because the effectiveness of filters gradually decreases due to perspiration, sebum, friction, or environmental exposure.

It therefore integrates perfectly into your daily photoprotection routine, as a complement to the fluid applied in the morning.

The skin is not only exposed to ultraviolet rays. On a daily basis, it also faces other environmental aggressors such as pollution and visible light, particularly blue light, which penetrates even deeper into the skin than UV rays.

These factors can generate free radicals, unstable molecules responsible for oxidative stress in the skin. This phenomenon can damage certain skin structures, including collagen, and contribute to the appearance of wrinkles, dark spots, and a duller complexion.

That is why at Substance of Light, we have developed sun protection that goes beyond protection against UV rays. We protect your skin from all the environmental aggressors it faces daily.

Ultraviolet rays are divided into two main categories that do not affect the skin in the same way.

UVB rays account for approximately 5% of the UV radiation that reaches the Earth. They act primarily on the surface of the skin and are responsible for sunburn.

UVA rays, which account for approximately 95% of UV radiation, penetrate deeper into the skin, reaching the dermis. They contribute to skin aging, the breakdown of collagen, and the appearance of dark spots.

UVA rays are also present all year round and can penetrate clouds and certain types of glass.

This is why it is important to use broad-spectrum protection capable of protecting against both UVA and UVB rays. Our fluid offers maximum protection: SPF50 for UVB and PA++++ for UVA.

The skin is exposed to ultraviolet rays all year round, even when it is overcast or in winter.

UVA rays account for approximately 95% of the UV radiation that reaches the Earth's surface. Unlike UVB rays, which are responsible for sunburn, their intensity varies little with the seasons, and they can penetrate clouds and certain glass surfaces.

They penetrate deeper into the skin and contribute to skin aging, the breakdown of collagen, and the appearance of dark spots.

Wearing protection daily therefore helps to shield the skin from cumulative damage linked to daily exposure, even during simple activities like walking in the city, driving, or working near a window.

Prevention is key, which is why we have developed the fluid, the new essential for your beauty routine.

Yes, our packaging is recyclable and made in France.

The cap, bottle, and box are made from 100% recyclable materials. However, please note that the pump is not yet recyclable at this time.

We are, however, committed to a process of continuous improvement and are actively working on a new version of the pump that will also be recyclable. We are determined to reduce our environmental footprint and provide sustainable solutions for our packaging.

Your skin is exposed to UV rays and light throughout the day, even in the city and even when it's cloudy.

We recommend applying your sunscreen in the morning, then reapplying it as soon as your skin is exposed again:
• after a bike ride or a walk,
• before having lunch on a terrace,
• after several hours outdoors,
• in the car during long trips,
• or simply throughout the day to maintain your protection.

In case of prolonged sun exposure (terrace, walk, high outdoor exposure...), reapplication every 2 hours remains recommended.

The urban protective mist has been specifically designed to make this reapplication simple, quick, and compatible with real daily life—even over makeup.