Oral and dermal toxicity of alkenones extracted from .

is commercially available marine algae used for animal feed, human nutrient supplements, and biodiesel. The is one of five genera of haptophytes that produces unique, long-chain lipids known as alkenones that are promising new ingredients for green cosmetics, personal care products and pharmaceutical delivery. However, there is a lack of toxicity data for alkenones in animals, thus limiting their use in humans.