High-Strength Retinol & Retinal Serum for Smoother, Firmer-Looking Skin Helps Improve the Appearance of Fine Lines Retinol, retinal and adenosine work together to help improve the appearance of fine lines and uneven skin texture, promoting smoother, firmer-looking skin. Supports a Brighter Complexion Niacinamide and NAD+ help improve the appearance of uneven skin tone, leaving the skin looking clearer and more radiant. Strengthens the Moisture Barrier Ceramide NP, glycerin and sunflower seed oil help replenish moisture and support the skin barrier, keeping skin feeling comfortable during retinoid care. This concentrated serum combines retinol and retinal with barrier-supporting ingredients to deliver effective age-defying care while helping maintain hydrated, healthy-looking skin.