Triethyl Citrate

Benefits
DeodorantAntisepticAntioxidant

What is Triethyl Citrate?

Triethyl Citrate is a triester formed from citric acid, a natural organic acid found in citrus fruits, and ethanol, resulting in a clear, oily liquid with low volatility and a faint fruity scent. Primarily utilized in deodorants, antiperspirants, fragrances, nail polishes, and hair sprays, it performs several key functions in cosmetic formulations. As a solvent, it dissolves lipophilic ingredients and aids in even distribution. In its plasticizing role, it softens polymer films to prevent cracking and improve adhesion on nails or hair. It also neutralizes odor by inhibiting bacterial enzymes that degrade sweat into malodorous compounds, while its antioxidant capacity stabilizes oils and fragrances against degradation. Biodegradable and derived from renewable resources, it integrates seamlessly into water- and oil-based systems without greasiness.

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:

Fragrance ingredient
Contributes scent character and/or masks base odors, shaping the overall sensory experience of the formula (subject to allergen and IFRA considerations).
Plasticizer
Improves flexibility and reduces brittleness of films (e.g., nail coatings, hair sprays), helping prevent cracking and enhancing smooth application.
Antioxidant
Slows oxidation of oils, fragrances, and sensitive actives to improve shelf life and reduce rancidity or color change; sometimes also supports skin protection from oxidative stress.
Deodorant
Helps control body odor by reducing odor-causing bacteria and/or neutralizing or masking malodor, without necessarily reducing sweat production.
Masking
Reduces perception of unpleasant odors or tastes by neutralizing them or covering them with more acceptable sensory notes.
Solvent
Dissolves and carries other ingredients, helping control viscosity, evaporation rate, and delivery of actives in both water- and oil-based systems.

Benefits

Controls body odor by limiting bacterial activity on skin.

Protects formulas from oxidation to maintain product integrity.

Enhances flexibility and durability of films in nail and hair products.

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 looking for gentle odor control in daily hygiene products.
Those with rare sensitivities to citrate esters.
Users of fragranced cosmetics seeking stable, pleasant scents.
People experiencing irritation from multifunctional solvents.
Individuals applying nail coatings or hair styling products for smoother results.
Individuals preferring strictly anhydrous formulations.

Safety Notes

  • Considered low hazard across cosmetic concentrations.
  • Displays minimal potential for skin sensitization or irritation.

Frequently Asked Questions about Triethyl Citrate

What does Triethyl Citrate do in cosmetics?

It acts as a deodorant by curbing odor bacteria, a solvent for blending ingredients, and a plasticizer for flexible films.

Is Triethyl Citrate safe for sensitive skin?

It has low irritation potential and is rated safe for use in cosmetics at typical levels.

Can Triethyl Citrate help with body odor?

Yes, it reduces odor by inhibiting enzymes from bacteria that break down sweat.