NYDJ Marilyn Straight Denim Jeans NWT Brown Size 0 discoloration on leg

From the manufacturer: The easy, figure-elongating construction of the NYDJ Marilyn Straight pairs well with everything, thanks to a flattering waist and versatile, straight fit. Lift Tuck® Technology uses a proprietary slimming panel with a patented criss-cross design to shape and support your curves for an always-sleek silhouette, so you can look, feel and wear one size smaller. A dark, dimensional wash increases the appeal of this statement style. Features classic five-pocket styling, zip fly and button closure. There is discoloration near the bottom of the legs, I suspect it to be lotion as when I steamed these pants prior to photographing them, they emitted a coconut smell. With hot water, pretreatment of dish soap, I suspect this will wash out.