Adding lanolin back into wool helps it to repel moisture and not to leak. Llamajama 100% Pure Lanolin is a liquid specifically formulated to make it easier for you to lanolize your wool. Lanolizing your wool with Llamajama 100% Pure Liquid Lanolin is simple – you don’t even have to melt it in the microwave. Simply stir ¼ teaspoon into a gallon of clean, tepid water. Soak your wool cover inside out for about ten minutes. To remove excess water gently roll it in a towel. Dry flat out of direct heat and light. It’s that easy!