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Geogard Ultra®

Geogard Ultra®

Geogard Ultra® is a synergistic and patented blend comprised of gluconolactone and sodium benzoate. Aside from its proven broad spectrum activity, wide range of global regulatory approvals and broad formulation compatibility, it also contributes an added skin moisturisation benefit and has conformance with ECOCERT/COSMOS, NATRUE and the Soil Association.What makes this preservative unique is the synergy between the two ingredients which allows for its broad spectrum efficacy. Typically, organic acids on their own are too weak and often require a co-preservative or booster in order to perform optimally. The gluconolactone in this blend works in conjunction with the sodium benzoate to act as an efficient preservative booster, slowly releasing gluconic acid over time thereby contributing to the broader preservation effect.
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Identification & Functionality

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Compositional Breakdown
Chemical Compound Breakdown CAS No. EINECS No. Percentage
D-glucono-1,5-lactone 90-80-2 202-016-5 70–80%
Sodium benzoate 532-32-1 208-534-8 22–28%
Calcium gluconate 299-28-5 206-075-8 1%

Features & Benefits

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Key Attributes
  • Has a wide range of global regulatory acceptance
  • Broad spectrum activity
  • ECOCERT/COSMOS-accepted , NATRUE-approved and Soil
  • Association-approved
  • Wide applicability
  • Added moisturization benefit
Description

Geogard Ultra® is a synergistic, patented blend comprised of gluconolactone and sodium benzoate. What makes this preservative unique is the synergy between the two ingredients, allowing for its broad spectrum efficacy. Typically, organic acids on their own are too weak and often require a co-preservative or booster in order to perform optimally. The gluconolactone in this blend works together with the sodium benzoate to act as an efficient preservative booster that is also non-GMO. Geogard Ultra®’s gluconolactone works by slowly releasing gluconic acid over time, which helps contribute to the preservation.

Applications & Uses

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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/gloss
  • Lotion
  • Make up remover
  • Oil in Water
  • Oral care
  • Powder
  • Shampoo
  • Suncare
  • Toner
  • Water in Oil
Formulation Recommendations
  • Water soluble
  • Compatible with a wide variety of formulation ingredients as well as most types of cationic, nonionic and anionic systems
  • Can be used effectively over a pH range of 3 to 6 and can be added at both room and elevated temperatures
  • Soluble up to 4% in ambient water; it can be easily dispersed in glycols and alkyl sulfates
  • To maximise the pH stability of the final formulation, it may be necessary to employ use of a sodium citrate buffer and pH adjustment as described below:
    1. Dose the final product with the required level of Geogard Ultra® along with a 1.5x amount of sodium citrate. So, a 2% dose of Geogard Ultra® should be accompanied by 3% sodium citrate
    2. Mix thoroughly to ensure all solids have dissolved and adjust the pH of the formulation to 7.00-7.25 with 30% sodium hydroxide
    3. Finally, adjust the pH to desired final product pH (pH 5.4–5.5 is ideal) with dilute sodium hydroxide or citric acid solution

Properties

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Physical Form
Color
White
Odor
Mild
Appearance
White powder
Soluble in
Water
Solubility Data
Solvent Soluble/Insoluble
Water Soluble
Propylene Glycol Dispersible
Glycerin Soluble
Ethanol Insoluble
Mineral Oil Dispersible
Vegetable Oil Insoluble
Silicone (Dimethicone) Insoluble
Alkyl Sulfates Dispersible

Regulatory & Compliance

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Global Regulatory

Europe

  • Max concentration of sodium benzoate is based on benzoic acid
    content
  • Max concentration of benzoic acid is 2.5% for rinse-off
  • Max concentration of benzoic acid is 0.5% for leave-on

Japan

  • 1.0% total max level of sodium benzoate

US

  • 5.0% total max level of sodium benzoate

General

  • Compliance with ECOCERT/COSMOS and Soil Association

Technical Details & Test Data

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Efficacy

Microbiological Challenge Studies
Studies were run using different concentrations of Geogard Ultra® in various formulations to see efficacy against various bacteria and fungi. All samples were inoculated at the beginning of the study, sampled at 7, 14 and 28 days.

In these challenge studies, the bacterial pool consisted of S.aureus, P.aeruginosa and E.coli, and the fungal pool of C.albicans and A.brasiliensis.

Moisturizing Cream (pH = 5.28)
Ingredient %W/W
Water, deionized q.s
Caprylic Triglyceride 20.00%
Sorbitan Monostearate 2.00%
PEG Stearate 1.50%
Glyceryl Stearate 2.00%
Decaglyceryl Decaoleate 5.00%
UV absorber optional
Thickener optional
Preservative 1.5% Geogard Ultra®
Total: 100.00%

Moisturizing Cream: Bacterial Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 28
1 Unpreserved Moisturizer 9.5x10^6 4.2x10^5 8.9x10^4 <10
2 Moisturizer with 1.5% Geogard Ultra® 6.5x10^6 <10 <10 <10

Moisturizing Cream: Fungal Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 28
3 Unpreserved Moisturizer 8.8x10^5 1.7x10^5 1.9x10^5 2.8x10^5
4 Moisturizer with 1.5% Geogard Ultra® 2.1x10^5 <10 <10 <10
Anionic Protein Shampoo (pH = 5.42)
Ingredient %W/W
Water, deionized q.s
Sodium Lauryl Ether Sulfate 15.0%
Triethanolamine Lauryl Sulfate 10.0%
Cocamide DEA 3.0%
Anhydrous Protein 1.0%
50% Aqueous Citric acid pH adjuster
Preservative 1.5% Geogard Ultra®
Total 100.00%

Anionic Protein Shampoo: Bacterial Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 28
1 Unpreserved Shampoo 9.5x10^6 4.76x10^7 1.06x10^8 2.0x10^7
2 Shampoo with 1.5% Geogard Ultra® 5.2x10^5 <10 <10 <10

Anionic Protein Shampoo: Fungal Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 28
3 Unpreserved Shampoo 6.6x10^5 2.0x10^5 3.0x10^5 1.7x10^7
4 Shampoo with 1.5% Geogard Ultra® 4.4x10^5 <10 <10 <10
Hair Conditioner (pH = 4.89)
Ingredient % W/W
Water, deionized q.s
Polysorbate 80 (Glycosperse® O-20) 0.5%
Lecithin 1.0%
Distearyldimonium Chloride (Varisoft TA100) 2.0%
Cetyl alcohol 2.1%
Cetearyl alcohol 1.5%
POE 4 Lauryl Alcohol (Ethosperse® LA-4) 3.1%
10% Aqueous Sodium Hydroxide pH adjuster
Preservative 1.0% Geogard Ultra®
Total: 100.00%

Hair Conditioner: Bacterial Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 28
1 Unpreserved Conditioner 8.3 x 10^6 4.8 x 10^7 2.4 x 10^6 9.0 x 10^6
2 Conditioner w/ 1.0% Geogard Ultra® 3.5 x 10^5 < 10 < 10 < 10

Hair Conditioner: Fungal Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 28
3 Unpreserved Conditioner 4.2 x 10^6 1.8 x 10^7 8.3 x 10^5 3.7 x 10^5
4 Conditioner w/ 1.0% Geogard Ultra® 4.1 x 10^4 2.0 x 10^2 <10 <10
Wet Wipe Liquor (pH = 5.54)
Ingredient %W/W
Water q.s to 100
Decyl glucoside (Plantaren® 2000) 0.25%
Polysorbate 20 (Glycosperse® L-20) 0.30%
Disodium EDTA 0.20%
Sodium citrate 3.00%
Geogard Ultra® 2.00%
Total 100.00%

(pH adjustments for in-situ buffer)

Wet Wipe Liquor: Bacterial Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 21 Day 28
1 SPC nonwoven (unpreserved) 1.6 x 10^6 3.1 x 10^5 >3.9 x 10^6 >3.9 x 10^6 >3.9 x 10^6
2 SPC nonwoven with 2% Geogard Ultra® 2.1 x 10^6 <100 <100 <100 <100
3 Spunlace nonwoven (unpreserved) 2.6 x 10^6 3.0 x 10^6 >3.9 x 10^6 >3.9 x 10^6 >3.9 x 10^6
4 Spunlace nonwoven with 2% Geogard Ultra® 1.9 x 10^6 <100 <100 <100 <100

Wet Wipe Liquor: Fungal Counts (CFU/gram)

Sample# Test Samples Day 0 Day 7 Day 14 Day 21 Day 28
1 SPC nonwoven (unpreserved) 7.7 x 10^4 2.4 x 10^6 6.4 x 10^6 4.1 x 10^5 1.2 x 10^6
2 SPC nonwoven with 2% Geogard Ultra® 7.8 x 10^4 1.0 x 10^2 <100 <100 <100
3 Spunlace nonwoven (unpreserved) 1.2 x 10^5 5.5 x 10^5 8.8 x 10^5 1.1 x 10^6 1.2 x 10^6
4 Spunlace nonwoven with 2% Geogard Ultra® 9.5 x 10^4 <100 <100 <100 <100
Average Moisturizing Effect on 9 Subjects Over Five Days

Lonza Geogard Ultra Average Moisturizing Effect on 9 Subjects Over Five Days

There is also a moisturization benefit on the skin with the Geogard Ultra®. In the same moisturizing cream formulation used to demonstrate preservative efficacy, Geogard Ultra® produced a quantitative moisturization benefit to the skin. Over a period of time, Geogard Ultra® produced a moisturizing effect that was superior to the use of 2 % glycerin.

Most Viewed Documents

View All 3 Documents

Document Name
Type
Products
Learn More
LSI Personal Care Preservatives Catalog
Brochure
Cosmocil® CQ, Geogard® 111A, Geogard® 111S, Geogard® 221, Geogard® ECT, Geogard® LSA, Geogard Ultra®, Glycacil® 2000, Glycacil® L, Glydant®, Glydant® 2000, Glydant® LTD, Glydant Plus® Liquid, Isocil® PC, LSI Benzethonium Chloride, Glydant Plus® PC, Mikrokill® COS, Spectradyne™, Glydant® Plus, Glydant Plus®, Geogard® Boost PHC
Brochure
Products: Cosmocil® CQ, Geogard® 111A, Geogard® 111S, Geogard® 221, Geogard® ECT, Geogard® LSA, Geogard Ultra®, Glycacil® 2000, Glycacil® L, Glydant®, Glydant® 2000, Glydant® LTD, Glydant Plus® Liquid, Isocil® PC, LSI Benzethonium Chloride, Glydant Plus® PC, Mikrokill® COS, Spectradyne™, Glydant® Plus, Glydant Plus®, Geogard® Boost PHC
Geogard® Ultra Technical Data Sheet
Technical Data Sheet
Geogard Ultra®
Technical Data Sheet
Products: Geogard Ultra®
LSI Global Preservatives Scorecard
Brochure
Geogard® 111A, Geogard® 111S, Geogard® 221, Geogard® ECT, Geogard Ultra®, Glycacil® 2000, Glycacil® L, Geogard® Boost PHC
Brochure
Products: Geogard® 111A, Geogard® 111S, Geogard® 221, Geogard® ECT, Geogard Ultra®, Glycacil® 2000, Glycacil® L, Geogard® Boost PHC

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End Uses: Moisturizers
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