• Organic acid / salt
• Good fungicide, mild bactericide
• Salt form is water-soluble
• Meet ECOCERT and COSMOS requirements
• 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

Geogard® 111S is sodium dehyroacetate (water soluble salt form of DHA). This product offer 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.

• 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

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.

• Salt variant (111S) is water soluble
• Maximum Dehydroacetic acid solubility is 0.1% in water
• Maximum Sodium Dehydroacetate solubility is 33% in water
• Use between pH 2–6.5
• Added at both room and elevated temperatures
• Added any time during manufacturing process
• May require a bactericide booster
• A slight yellowing effect can sometimes be seen by the addition of dehydroacetic acid or its salts
• Can be limited by the addition of reducing agents / antioxidants, in particular, BHT or sodium metabisulfite or tocopherol (not tocopheryl acetate)
•  Anionics (carbomers and certain surfactants) and high temps cause discoloration
• Only the acid form has preservative efficacy; the salt is inactive
•  Add the sodium dehydroacetate and reduce the pH to liberate acid
•  Compatible in all types of formulations: anionics, nonionics and cationics

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.

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

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