Orchid- Fragrant flower that can be a skin sensitizer.
Olive Oil/Olive Fruit Oil- Emollient plant oil similar to many other non-fragrant plant oils.
Orange Blossom- Fragrant extract that can also be a skin sensitizer.
Oleyl Erucate- Skin-softening agent derived from oleyl alcohol, which is obtained chiefly from fish oil.
Olfactory Response- Olfaction is the sense of smell. An olfactory response includes the mental, emotional, or spiritual changes that may be elicited by an aroma.
Oleth-10- A form of fatty alcohol that functions as a texture enhancer and cleansing agent.
Oleths- Mild cleansing agents.
Oleanolic Acid- A skin-soothing ingredient, especially when used in synthetic rather than natural form.
Oleic Acid- Fatty acid used as a cleansing agent and texture enhancer.
O-Cymen-5-Ol- Preservative used in cosmetics.