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The fluid protects, the mist strengthens ・a complete routine to protect your skin, from morning to night.
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M6

TRUE FILTER™

80% of skin aging is linked to exposure to light radiation.

Light damages your skin every day, in summer and winter. Our skincare products have been formulated in collaboration with a former CNRS researcher with over 40 years of expertise in sun protection.

A routine designed to durably protect the skin from the entire light spectrum.

Continuous protection duo
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Continuous protection duo

Fluid + Mist Duo

77 EUR
77 EUR 81 EUR
Protective Hydrating Fluid
Protective Hydrating Fluid

SPF50・PA++++

42 EUR
42 EUR
Urban Protective Mist

Urban Protective Mist

SPF25・PA+++

39 EUR
39 EUR

Research and development

Our products have been developed by a former CNRS researcher, an expert in photoprotection, in collaboration with a scientific committee and dermatologists.

Clinical trials

All our products are tested by independent, accredited laboratories, under real-world conditions.

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Full spectrum protection

The TRUE FILTER™ Complex

TRUE FILTER™ is our exclusive global photoprotection technology, combining new-generation UV filters and skin defense active ingredients to protect the skin from the light spectrum and urban aggressions, while enhancing hydration, radiance, and the skin barrier.

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Our Resellers

Discover Substance Of Light® products at Le Bon Marché and over 200 partner retailers.

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At Substance Of Light®, we don't just protect from light, we master it. We transform photoprotection into a sensorial ritual, where science and beauty meet for simply sublime skin. UV protection becomes imperceptible, intuitive, and essential. Skincare, elevated to its ultimate expression.

OUR STORY