Breast soreness and discomfort is a common challenge during the early days and weeks after birth, as milk "comes in", and milk supply establishes. Sore and tender breasts can occur any time during pregnancy and lactation. When the breasts are full and/or tender, massage and warmth are known to soothe soreness and trigger oxytocin, which is responsible for the let-down reflex supporting the milk flow. Medela's breast massage oil is a fast-absorbing blend of avocado oil, which nourishes the skin, and ginger, an essential oil known for its warming and anti-inflammatory properties The double action of these two ingredients provides warming relief to sore breasts.