If no redness, itching, or burning occurs, it is generally safe to proceed with broader application. Furthermore, many citrus oils contain compounds called furanocoumarins, which trigger phytophotodermatitis—a severe skin burn that occurs when the skin is exposed to UV light after application.
How Storage Conditions Affect Essential Oils Safety for Skin
Unlike a hydrating oil like jojoba or rosehip, which mimics the skin’s natural sebum, essential oils are active compounds meant to protect the plant from pests and disease. This efficiency is why aromatherapy works, but it is precisely why using them undiluted can lead to systemic effects or toxic reactions.
The general rule of thumb for adults is a maximum dilution of 2% for full-body application, which translates to roughly 12 drops of essential oil per ounce of carrier. By mixing essential oils with a carrier oil—such as fractionated coconut oil, sweet almond oil, or shea butter—you slow down the absorption rate and reduce the concentration to a safe level.
How Storage Affects Essential Oils on Skin
Regardless of the oil you choose, a patch test is mandatory. These liquids are the volatile essence of a plant, meaning they are incredibly potent and designed to interact with biological systems.
More About Can essential oils be used on skin
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