This water-free solution contains 0.2% pure retinol, an ingredient that can reduce the appearances of fine lines, of photo damage and of general skin aging. highly-stable, water-free solution of 0.2% pure retinol. this water-free solution contains 0.2% pure retinol, an ingredient that can reduce the appearances of fine lines, of photo damage and of general skin aging. water-free | alcohol-free | silicone-free | nut-free | vegan | gluten-free | cruelty-free how to use: apply a small amount to face in the pm as part of your skincare regimen, after water-based serums but before heavier treatments.