Coconut palm

The coconut palm (Cocos nucifera, from coco (Portuguese for kernel, berry) is a tropical palm plant (Arecaceae family) that supplies around 8% of the world's vegetable oils.
Cocos nucifera is the parent plant of Oleum Cocos, the coconut oil also known as coconut butter, a whitish-yellowish oil that is soluble in 90% ethanol but not in water. Coconut oil has a melting point of between 22-28 °C. Coconut oil is well tolerated by the skin. Allergic reactions have been described but are rare.

1. Lakshmi C (2014) Allergic Contact Dermatitis (Type IV Hypersensitivity) and Type Hypersensitivity Following Aromatherapy with Ayurvedic Oils (Dhanwantharam Thailam, Eladi Coconut Oil) Presenting as Generalized Erythema and Pruritus with Flexural Eczema. Indian J Dermatol 59:283-286.
2. Shaffer KK et al (2006) Allergenicity and cross-reactivity of coconut oil derivatives: A double-blind randomized controlled pilot study. Dermatitis 17:71-76.