Essence can refer to a variety of product details, positive and negative aspects, ingredients, or materials depending on the context. Here are some examples from the search results:

• Ingredients: Some essence products, such as the Karseell Collagen Hair Treatment, emphasize their natural and high-quality ingredients from herbs selected from all over the world. Positive Essence also highlights that their ingredients are gentle and do not contain harmful synthetic chemicals.

• Animal welfare: Essence is committed to animal welfare and has never conducted any testing on animals whatsoever. They believe in "beauty without cruelty."

• Clean beauty: Essences Hello Good Stuff Range contains at least 90% natural ingredients and has been developed in accordance with their Clean Beauty Standard. They use natural and vegan ingredients in their products, and it is particularly important to them that their ingredients are safe for people, animals, and the environment.

• Product details: The Lancôme Clarifique Exfoliating & Hydrating Face Essence is a skincare product that exfoliates and nourishes while minimizing the appearance of pores for smooth and radiant skin.

In summary, essence can refer to a variety of product details, positive and negative aspects, ingredients, or materials depending on the context.