Every day, throughout the year, both outdoors and indoors, skin is exposed to light. This chronic exposure is one of the main causes of declining skin quality. Biologique Recherche now provides an innovative and distinctive response with Sérum Spectral, a photo-resilience mechanism activator designed for daily use. Inspired by photobiology, the science that studies how living organisms react to light and how it triggers biological effects, both beneficial and harmful, this formula helps support the skin’s adaptive responses to light exposure.
Results: Its formula introduces antioxidant activity with a 100% reduction of UV*-induced oxidation levels.
A progressive and measurable improvement in skin quality:
- After 28 days, skin appears more radiant, with +10% radiance, a benefit that increases to +16% after 56 days
- Skin tone becomes more even (+18% after 56 days)
- Skin softness improves by +8% after 28 days, and +16% after 56 days**
*Ex vivo study.
**Clinical evaluation and VISIA analysis conducted on 33 volunteers aged 23 to 70. All skin types, including those with uneven skin tone, excluding melasma. Application twice a day for 56 days.
Directions for use:
- Apply morning and evening using upward massage strokes to the face, neck and décolleté. Sérum Spectral can be incorporated into any Biologique Recherche skin care routine, in accordance with the recommendations of our skin experts.
- Apply during the treatment phase, after the initialization phase, and note that it does not replace the use of sun protection.



