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Geogard Ultra (Powder)
Geogard Ultra (Powder)

Starting at:$3.25

Product Code: FSSB22048

Geogard Ultra:
1 oz
8 oz
1 kg (2.2 lbs)
5 kgs (11 lbs)


Geogard Ultra® (Powder)

INCI Name: Gluconolactone (and) Sodium Benzoate

Also Known as GSB or Neodefend

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Key Product Benefits:

–Has a wide range of global regulatory acceptance

–Broad spectrum activity


–Wide applicability

–Added moisturization benefit

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.

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 maximize 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

Recommended Use Level


Appearance: Off White Powder

INCI: Gluconolactone (and) Sodium Benzoate


–Baby care

–Baby wipes

–Body butter

–Body wash



–Deo/ anti-perspirant

–Eye creams / gels

–Eye shadow

–Face lotion

–Face wipes

–Facial cream


–Hair gel

–Hand soap



–Make up remover

–Oil in Water





–Water in Oil


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.

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