Valerian is an old herb. Valerian root oil has a powerful woody, earthy, or musky aroma. Some find this fragrance unpleasant.
The most popular aromatherapy oil is lavender. Sweet flower aroma with woody or medicinal undertones.
The herb used to prepare marinara sauce is sweet basil essential oil. It smells fresh and herbal.
Rose petals provide essential oil. Roses calm with their pleasant, flowery smell.
Lemon balm is pleasant and lemon-scented. Though dubbed "lemon," it's a plant. Melissa is another. Aromatherapy calms and heals.