opal alga gw


Opal Alga GW™ is derived from the Cystoseira tamariscifolia algae. This innovative active ingredient aims to resynchronize the skin’s circadian rhythm to reveal its natural radiance. Our modern lifestyles often disrupt these biological rhythms, affecting the genes responsible for their regulation. Opal Alga GW™ works at the molecular and cellular levels to rebalance these genes, visibly improving the skin’s condition. It reduces signs of fatigue, such as dark circles, while restoring the skin’s firmness and hydration.

Light-responsive technology to awaken the skin

  • Algae
  • Watersoluble
  • Antioxidant
  • Blue light
  • Circadian rhythm
  • Dark circles
  • Firming & Lifting
  • Hydration
  • Pro-ageing
  • Soothing
  • Origin: Brittany Coast, France
  • Sourcing: organic alga
  • Cosmos
  • Preservative free
  • China compliant
  • Patent pending

Active molecule

  • Total Phlorotannins eq phloroglucinol
  • Total Mannitol

Mechanism of action

  • Restores natural circadian cell rhythm
  • Reinforces vascular barrier and integrity
  • Down-regulates angiogenesis
  • Stimulates lipid accumulation and adiponectin production
  • Protects against skin inflammation
  • Activates hyaluronic acid synthesis

Clinical efficacy


  • +17% Skin firmness
  • +6% Attenuation in dark circles color
  • +77% Volunteers with attenuation in dark circles
  • -38% Under-eye microcirculation (vs placebo)
  • +29% Moisturizing effect

Anti-dark circles

More information?


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