A 100% natural innovation from Thalgo, Spirulina Boost is designed for people who are tired and exposed to a polluted urban environment, and who want to give their skin a quick boost. Combining spirulina, marine magnesium, natural vitamin C from acerola and a complex called Algal, this real "shield" protects the skin from external aggressions. Day after day, the first wrinkles are smoothed out, the skin looks more radiant and is more resistant to the stresses of city life.