company tower banner
Arxada Company Logo
Geogard® 111A offer reliable anti-fungal efficacy at relatively low product use levels. Geogard® 111A is based on dehydroacetic acid (DHA); These preservatives have a wide range of global regulatory acceptance for many personal care and cosmetic applications. Test data of Geogard® 111A to parabens show higher efficacy and substantially better performance in low to neutral pH formulations.

INCI Name: Dehydroacetic Acid

Functions: Fungistatic Agent, Preservative

Ingredient Origin: Synthetic

Benefit Claims: Anti-Bacterial, Anti-Fungal, Broad pH Stability, Chemical Stability, Compatibility, Preservation, Superior Performance

Labeling Claims: Clean at Sephora, Credo Clean Standard, Cruelty-Free, Environmentally Friendly, Natural, Non-GMO, Not Tested on Animals, Organic, Sustainable, Ulta Beauty's Conscious Beauty, Vegan

Certifications & Compliance: COSMOS, Cruelty-Free, ECOCERT, EU Compliant, EU Cosmetic Regulation 1223/2009 Compliant, IECIC (China), ISO 16128, Organic Certified, Soil Association Approved

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Ingredient Origin
Cosmetic Ingredients Functions
CAS No.
520-45-6, 16807-48-0, 771-03-9
EC No.
208-293-9, 212-227-4

Features & Benefits

Key Product Benefits
  • Organic acid / salt
  • Good fungicide, mild bactericide
  • Salt form is water-soluble
  • Meet ECOCERT and COSMOS requirements
  • Vegan & Non-GMO compliant
  • Soil Association approved
  • Has a wide range of global regulatory approval
  • Easy-to-use and compatible with most types of cosmetic formulations
  • Wide effective pH range
  • Compatible with key raw materials
  • Chemically and physically stable
  • Not tested on animals
Description

Geogard® 111A is based on dehydroacetic acid (DHA). This product offers higher fungal efficacy than many traditional chemistries and lower “inuse” cost. It is globally approved for virtually every personal care and cosmetic application. In addition, it conforms with ECOCERT and COSMOS standards, as a synthetic preservative in ecological and organic certified cosmetics.

Applications & Uses

Application Format
Hair Care Applications
Wipes, Tissue & Towel Applications
Use Level
0.1-0.6%
Application pH Range
2–6.5
Applications
  • Baby care
  • Baby wipes
  • Body butter
  • Body wash
  • Conditioner
  • Cream
  • Deo/ Anti-perspirant
  • Eye creams/gels
  • Eye shadow
  • Face lotion
  • Face wipes
  • Facial cream
  • Foundation
  • Hair gel
  • Hand soap
  • Lipstick
  • Lotion
  • Make up remover
  • Mascara
  • Oil in Water
  • Oral care
  • Powder
  • Shampoo
  • Suncare
  • Toner
  • Water in Oil

Properties

Physical Form
Odor
Odorless
Appearance
Crystalline powder
Soluble in
Oils

Regulatory & Compliance

Global Regulatory

Europe

  • Max use level for DHA is 0.6% DHA – rinse-off & leave-on

Japan

  • Max use level for DHA is 0.5% DHA – rinse-off & leave-on

US

  • All ingredients allowed (CIR/PCPC)
  • Refer to present practices of use and concentration

Technical Details & Test Data

Efficacy

Microbiological Challenge Studies
Geogard® 111 MICs versus widely used parabens

Minimum Inhibitory Concentrations (MIC) for Geogard® 111A Compared to Parabens

 

Organism Geogard R 111 A

Typical Parabens

Aspergillus niger 200 ppm 600-200ppm
Candida albicans 200 ppm

1000-250 ppm

Penicillium notatum 200 ppm

500-125 - ppm

Staphylococcus aureus 10,000 ppm

800-150 ppm

Escherichia coli 10,000 ppm

800-300 ppm

Pseudomonas aeruginosa 20,000 ppm

1,000-400 ppm

 

Ingredient % wt/wt
Sterile DI Water 75%
Myristyl propionate 8%
Glyceryl stearate 6%
Glycerin 5%
PEG-20 glyceryl stearate 4%
Cetearyl alcohol 1.5%
Sodium hydroxide < 1%
Total 100%

Studies were run using different concentrations of Geogard® 111 in an anionic shampoo to see efficacy against various bacteria, yeast and fungi. All samples were inoculated at the beginning of the study, sampled at 24 hours, 3, 7, 14 and 28 days.

Compatibility and Solubility of Geogard® 111 vs. Parabens

 

Preservative Solubility Compatibility Typical % Use Level
Water Propylene Anionics Nonionics Cationics
Geogard® R 111A 0.10% 1.7% Yes Yes Yes 0.35%
Geogard® R 111S 20% 12% Yes Yes Yes 0.35%
Parabens <0.25% 22% Some No Yes >0.60%
Additional Information

Since Geogard® 111 preservatives are based on dehydroacetic acid with a pKa of 5.27, there is more activity across a wider pH range compared to other acids like sorbic acid at 4.76.

Preservatives pK Value pH Range
    3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0
Dehydroacetic Acid 5.27 100% 98 95 86 65 37 15.9 5.6 1.9
Sorbic Acid 4.76 98 95 85 65 37 15 5.5 1.8 0.6
Formic Acid 3.75 85 64 36 15 5 1.8 0.6 0.2 0.06

The efficacy of Geogard® 111 preservatives is pH dependent, offering greater efficacy at lower pH.

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • China
  • Europe
  • India
  • Japan
  • Latin America
  • Middle East
  • North America
  • Oceania
  • South East Asia