Compatibility of NaturePreserve™ Ultra with Vitamin C Forms and Fruit Extracts

The preservative NaturePreserve™ Ultra (Gluconolactone & Sodium Benzoate) is specifically incompatible with Vitamin C (L-ascorbic acid). This means you should avoid using NaturePreserve™ Ultra in formulations containing L-ascorbic acid.

However, this incompatibility is generally limited to the L-ascorbic acid form. Other stable forms of Vitamin C, such as:

• Ethyl Ascorbic Acid
• Ascorbyl Glucoside (AA-2G)
• Sodium Ascorbyl Phosphate (SAP)
• Magnesium Ascorbyl Phosphate (MAP)
• Perfect-C™ (Ascorbyl Tetraisopalmitate)

can typically be used with NaturePreserve™ Ultra. The product descriptions for these alternative Vitamin C forms do not indicate incompatibility with Gluconolactone & Sodium Benzoate.

Regarding fruit extracts like tamarind, pineapple, or mixed fruit extracts, these generally do not contain significant amounts of stable L-ascorbic acid. The Vitamin C (L-ascorbic acid) naturally present in fruits is highly unstable, especially in water, and degrades quickly during processing. Therefore, the incompatibility issue with NaturePreserve™ Ultra typically does not apply when using these fruit extracts, as they are not a source of stable L-ascorbic acid.

When formulating, always consider the optimal pH range for both the preservative and the active ingredients. NaturePreserve™ Ultra works best in a pH range of 3-6, while different Vitamin C derivatives have different optimal pH ranges for stability and efficacy.