preservativesStandardized Liquid Extract

Citrus Grandis (Grapefruit) Seed Extract

Grapefruit Seed Extract

preservativeantimicrobialantioxidant

INCI Name

Citrus Grandis (Grap...

Functions

3 Roles

Sustainability

8/10

Category

preservatives

What It Does

Grapefruit Seed Extract is derived from the seeds, pulp, and white membranes of Citrus grandis through extraction processes that concentrate naturally occurring compounds including bioflavonoids, polyphenols, and vitamin C. Formulators value it as a broad-spectrum natural preservative booster and antimicrobial agent, though its efficacy is debated in scientific literature, with some studies attributing its antimicrobial properties to synthetic additives used during processing rather than the grapefruit components themselves. It's commonly used in natural and organic formulations at concentrations of 0.1-2% to support preservation systems and provide antioxidant benefits.

Prevents bacterial contamination
Extends product shelf life
Ensures formula safety over time
Maintains product efficacy

Technical Properties

pH Range

4.0-6.5

Optimal working range

Ionic Charge

nonionic

Molecular charge type

Viscosity Effect

neutral

Impact on formula thickness

Ingredient Compatibility

Works Well With

nonionic surfactantsmost emollientshumectantsbotanical extractsvitamins

Avoid Combining

strong alkaline ingredientssome cationic polymers at high pH
Compatibility analysis powered by OpenMix — open-source formulation science

Sustainability Profile

Sustainability Score

8/10

Biodegradability

readily biodegradable

Source

plant-derived

Feedstock

grapefruit seeds and pulp from citrus processing

Build Your Own Formula

Join thousands of creators using Genie to develop professional cosmetic formulations with AI-powered guidance.

Get Started Free