Lubricants are designed to reduce friction while involved in sexual activity. They are used during sexual intercourse and masturbation to decrease the friction and ease in penetration. Moods Lubes Natural is a water-based lubricant. Water-based lubricants are water soluble and are widely used as personal lubricants. Lubrication alters your mood by making it easier to penetrate. Moods Lubes Natural is made of natural ingredients. Dermatologically tested.