Piping Rock again offers its Piping Rock Rosemary 100% Pure Essential Oil 0.5-oz. Bottle for $3.49 with free shipping. That's tied with our mention from three weeks ago and, outside of the below mention, the lowest total price we could find for this quantity of rosemary essential oil by $2. It purportedly nourishes skin and hair, eases muscular and joint discomfort, and supports healthy respiration and immune function.

A close price: PureFormulas offers a similar bottle for $4.13 with free shipping.