100% Mulberry Silk Eye Mask Cruelty-Free. Benefits: Actively hydrates skin with natural proteins that form a protective moisture barrier. Prevents wrinkle formation and sleep lines, especially beneficial for side sleepers. Provides complete blackout coverage for deeper, more restorative sleep. Customers consistently report waking up with smoother, more hydrated skin. Features: 100% Charmeuse Mulberry silk with 19-momme thickness for luxury quality. Adjustable elastic straps ensure complete light block and perfect fit for all head sizes. Black silk lining provides maximum darkness for deeper sleep. Machine-washable at 30C, durable and travel-friendly construction. Formulated Without: Chemicals and synthetic materials. Harsh treatments that damage silk's natural properties. Animal cruelty in production process. Moisture-wicking materials that dry out skin.