Information on NaturePreserve™ Ultra and Natural PHA (Gluconolactone)

Based on your questions about NaturePreserve™ and Gluconolactone:

1. Correct Usage of NaturePreserve™ Ultra

NaturePreserve™ Ultra is a natural preservative blend containing Gluconolactone and Sodium Benzoate. To use it correctly:

• Mixing: Add it to the water phase of your formulation.
• Usage Rate: The recommended usage rate is 0.75-2.0%, with 1.25% being a general recommendation for most products.
• pH Requirement: It is effective within a pH range of 3-6. Ensure your formula's pH is adjusted to be within this range.
• Compatibility: Do not use NaturePreserve™ Ultra together with L-Ascorbic Acid (Vitamin C).

2. Compatibility with Tamarind Extract Mask (pH 3-6)

Yes, NaturePreserve™ Ultra is compatible with a mask that has a pH between 3-6. Its effective working range is pH 3-6, so it will function correctly in such a formulation.

3. Allergic Reactions

The product descriptions do not specifically mention reported cases of allergic reactions. NaturePreserve™ Ultra is described as a 100% natural preservative. Natural PHA (Gluconolactone), when used for exfoliation, is noted as being less irritating than traditional AHAs. As with any cosmetic ingredient, individual reactions can vary. It is always recommended to perform a patch test on a small area of skin before using a product containing these ingredients extensively, especially if you have sensitive skin or a history of allergies.

Please note that while NaturePreserve™ Ultra is a preservative blend containing Gluconolactone, Natural PHA (Gluconolactone) is also available as a separate ingredient primarily used for its exfoliating properties, which are most effective at a pH range of 3.4-4.5. Your question about pH 3-6 suggests you are likely interested in the preservative function provided by NaturePreserve™ Ultra.