Mineral Oil

Petroleum-Derived
Benefits
Moisturizing

What is Mineral Oil?

Mineral oil, also known as liquid paraffin or white mineral oil, is a highly purified, colorless, and odorless mixture of saturated hydrocarbons derived from the distillation of petroleum. In cosmetics, it belongs to the category of hydrocarbon oils commonly used in moisturizers, lotions, cleansers, and hair care products. It functions primarily by forming a thin, non-greasy film on the skin or hair surface, which helps prevent transepidermal water loss and provides a smooth, protective barrier. This occlusive property allows it to carry other ingredients, aid in product spreadability, and enhance the delivery of active components in formulations. Due to its stability and inert nature, it serves as a reliable base in anhydrous products like baby oils and ointments, where it softens rough textures without penetrating deeply into the skin.

Comedogenic Rating 2/5 Moderate risk
EWG Safety Rating 1-3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Fragrance ingredient
Contributes scent character and/or masks base odors, shaping the overall sensory experience of the formula (subject to allergen and IFRA considerations).
Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.
Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Skin protecting
Forms a barrier to protect skin from external irritants.
Solvent
Dissolves and carries other ingredients, helping control viscosity, evaporation rate, and delivery of actives in both water- and oil-based systems.
Antistatic agent
Reduces static electricity and flyaways by improving surface conductivity, enhancing hair manageability and smoothness in conditioners and styling products.

Benefits

Helps maintain skin hydration by forming a barrier that reduces moisture evaporation.

Softens and smooths skin and hair surfaces for improved texture and manageability.

Acts as a solvent to dissolve and stabilize other formula components effectively.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry or rough skin seeking basic hydration.
People with acne-prone skin due to potential moderate comedogenicity.
People with sensitive skin needing gentle, non-irritating protection.
Individuals preferring non-petroleum-derived ingredients.
Those using hair products for reduced static and better conditioning.
Those with very oily skin who may find occlusives too heavy.

Safety Notes

  • Generally recognized as safe for cosmetic use when properly refined.
  • Low potential for irritation or sensitization in typical concentrations.

Frequently Asked Questions about Mineral Oil

Is mineral oil comedogenic?

It has a moderate comedogenic rating of 2, so it may contribute to pore clogging in some acne-prone individuals.

What skin types suit mineral oil?

Best for dry or sensitive skin; those with oily or acne-prone skin may want alternatives.

Is mineral oil safe in cosmetics?

Yes, when highly purified, it is considered safe with low irritation risk by regulatory reviews.