Wahl '19 Liquid Lather. While other lathers are concentrate and have to be mixed with distilled water, Wahl’s lather is premixed and ready to pour with no measuring, mixing or worrying about separation. Another benefit to Wahl’s '19 liquid lather is that it will not dry out skin. The lather itself is self-lubricating, which allows the razor to glide evenly over the skin without pulling or skipping and leaves skin moisturized. In addition to facial shaves, the lather can be used for neck trims and line ups, as well as for ladies’ grooming.