Cholesterol

Benefits
Softening

What is Cholesterol?

Cholesterol is a naturally occurring sterol lipid, a vital component of the human skin's stratum corneum intercellular matrix alongside ceramides and free fatty acids. In cosmetics, it belongs to the emollient and conditioning agent category, commonly featured in moisturizers, creams, and serums. It functions by promoting the formation of organized lamellar structures that mimic the skin's natural lipid organization, enhancing emulsion stability and aiding in the delivery of barrier-supporting ingredients. This helps maintain product integrity and improves skin feel. Sourced typically from lanolin or produced synthetically, it contributes to viscosity control and prevents phase separation in oil-in-water formulations, ensuring consistent texture and performance over time.

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

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Emulsion stabilizer
Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.
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.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.
Stabilising
Improves physical and/or chemical stability (e.g., preventing separation, precipitation, or degradation) to keep performance consistent over shelf life.

Benefits

Promotes skin softening and smoothness by mimicking natural lipids.

Stabilizes emulsions to maintain product consistency and prevent separation.

Supports moisture retention through barrier-like structuring without clogging pores.

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 or compromised skin barriers seeking conditioning.
People with known allergies to lanolin-derived ingredients.
Individuals using ceramide-based products for enhanced efficacy.
Those sensitive to sterol lipids, though rare.
Those preferring non-comedogenic ingredients in daily moisturizers.
Individuals avoiding animal-derived components, opting for synthetic versions.

Safety Notes

  • Rated low hazard by EWG with scores of 1 across categories.
  • Deemed safe for cosmetic use by regulatory reviews with no significant irritation concerns.

Frequently Asked Questions about Cholesterol

What is cholesterol in cosmetics?

A natural skin lipid used as an emollient and stabilizer to mimic the barrier and improve texture.

Is cholesterol safe for sensitive skin?

Yes, it has low irritation potential and is widely accepted as safe in formulations.

Does it clog pores?

No, with a comedogenic rating of 0, it does not promote acne.