Key characteristics of a "simple" lip oil:

Minimal Ingredients: The focus is on a few key oils that are highly nourishing and hydrating, without a lot of additives, artificial fragrances, or colorants.

Natural Formulation: It often contains a blend of natural carrier oils and sometimes a few drops of essential oils.

Non-Sticky: A simple lip oil is prized for its lightweight, non-greasy feel that provides a glassy shine without the tackiness of traditional lip glosses.

Hydration-Focused: The primary function is to deeply moisturize, soothe, and heal dry, chapped lips.