Isohexadecane

Benefits
ProtectionSoftening

What is Isohexadecane?

Isohexadecane is a branched-chain hydrocarbon, known as an isoparaffin, produced synthetically or from refined petroleum fractions. In skincare products, it falls under volatile emollients and solvents, prized for its clear, odorless profile and quick-drying nature. It works by mimicking skin's natural oils to smooth surface irregularities, while its solvent properties dissolve lipophilic ingredients, ensuring even blending and controlled release. This enables silky textures in lotions, primers, and oil-free moisturizers, where it minimizes tackiness and boosts slip without heaviness. Its stability across pH levels supports diverse formulations, from water-in-oil emulsions to lightweight sprays, enhancing overall sensory appeal and ingredient compatibility without altering skin's barrier function.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

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.
Solvent
Dissolves and carries other ingredients, helping control viscosity, evaporation rate, and delivery of actives in both water- and oil-based systems.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Softens and smooths skin by filling surface roughness.

Helps protect against moisture loss in formulas.

Improves product texture and spreadability as a solvent.

Who It's For

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

Who May Benefit Who Should Avoid
People with dry skin needing softening effects.
Individuals sensitive to hydrocarbons.
Those preferring lightweight, non-greasy products.
Those avoiding synthetic petroleum-derived ingredients.
Users of foundations or serums for better application.
People with rare allergies to alkanes.

Safety Notes

  • Considered low hazard in cosmetic use by safety assessments.
  • Non-comedogenic with minimal irritation potential.

Frequently Asked Questions about Isohexadecane

What is isohexadecane used for in skincare?

It acts as an emollient to soften skin, a solvent for blending ingredients, and a conditioner for smoothness.

Is isohexadecane safe for daily use?

Yes, it's rated low hazard and suitable for most skin types in cosmetic concentrations.

Does it cause breakouts?

No, it has a comedogenic rating of zero and does not clog pores.