The article from Heritage Park Laundry Essentials discusses why most wool doesn’t need to be washed in detergent containing lanolin. Although lanolin helps protect wool coats from elements, pure lanolin creates a water-repellent barrier that is not desirable for most garments. Detergent with lanolin should only be used for outerwear or other external layers that require a waterproof barrier. Lanolin hampers wool's breathable and moisture-wicking properties that make wool so comfortable and cozy when used on items such as sweaters, socks, lingerie, long underwear, or loungewear. The article recommends using a gentle, pH-neutral detergent that is enzyme-free and made for laundering natural fibers like Silk and Wool Detergent from Heritage Park Laundry Essentials. The article also provides tips on how to hand or machine wash wool garments.