Microcrystalline Cellulose

What is Microcrystalline Cellulose?

Microcrystalline cellulose is a fine, white powder derived from natural cellulose fibers found in wood pulp or cotton linters through purification and controlled hydrolysis processes. This results in short, crystalline chains of glucose polymers, making it insoluble in water and most organic solvents. In cosmetic formulations, it serves across categories like cleansers, exfoliants, powders, creams, and serums. It works by adding bulk to increase product volume, absorbing liquids to control moisture and oil, preventing powder clumping for better flow, modifying slip for smoother application, thickening to control viscosity, and stabilizing emulsions against separation. Its inert properties allow it to enhance texture and usability without interacting chemically with other components, providing a dry, smooth feel.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 2 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Abrasive
Provides gentle mechanical exfoliation and polishing, helping remove surface dead skin cells and improve smoothness and slip in scrubs and cleansers.
Absorbent
Absorbs water and/or sebum to reduce greasiness and shine, improve dry touch, and help keep powders and emulsions feeling lighter on skin.
Anticaking agent
Prevents powders from clumping by reducing moisture pickup and improving flow, keeping loose and pressed powders uniform during storage and use.
Bulking agent
Increases mass/volume to build structure and improve handling, commonly used to adjust feel, spread, and cost-in-use without acting as a primary active.
Emulsion stabilizer
Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.
Slip modifier
Improves the spreadability and glide of products on skin.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Offers gentle physical exfoliation to smooth skin surface in scrubs.

Absorbs excess sebum for a less greasy, matte finish.

Enhances product stability, spreadability, and powder flow.

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 oily skin seeking oil control and shine reduction.
Those with rare allergies to cellulose sources like wood pulp.
Individuals preferring textured scrubs for mild exfoliation.
People sensitive to particulate ingredients in high concentrations.
Users of powders or emulsions wanting improved handling and feel.
Individuals preferring anhydrous or oil-free formulas only.

Safety Notes

  • Considered safe for cosmetic use by regulatory reviews.
  • Low skin irritation potential in typical concentrations.

Frequently Asked Questions about Microcrystalline Cellulose

What is microcrystalline cellulose made from?

It is derived from purified cellulose in wood pulp or cotton through hydrolysis into a fine powder.

Is it safe for sensitive skin?

Yes, it shows low irritation potential and is widely regarded as safe in cosmetics.

Does it clog pores?

It has a comedogenic rating of 0, indicating low risk of pore clogging.