Algenist pairs together two of bestselling items specifically formulated for a nighttime skincare routine. Green Microalgae Retinol+ Regenerating Serum is a high-performance green microalgae extract that helps reduce the appearance of fine lines and wrinkles for smoother, more radiant-looking skin. The serum combines gradual release encapsulated stabilized retinol and fermented plant-based green microalgae. GENIUS Sleeping Collagen Cream provides a layer of nourishment that moisturizes skin. How do I use it: Apply serum to the entire face and neck following cleansing. Gradually build up to everyday use. Use SPF protection during the day as retinol may increase your skin's sensitivity to the sun. Apply a pea-size amount of cream to the entire face, neck, and decollete, avoiding the eye area. From Algenist.