NK12
INCI: Aqua, Sodium Benzoate, Potassium Sorbate
Aquaguard NK12 is an aqueous preservative suitable for use with both rinse-off and leave-on products.
It has a broad spectrum of activity and is effective against bacteria, yeast, mould and fungi. The preservative is supplied as an easy to use, readily dispersible liquid which is alcohol and solvent free. Aquaguard NK12 is designed for use in skin friendly formulations with pH values up to 5.5.
Free
Recommended Applications
| In Use Concentrations | ISCA recommendation | EU Cosmetic Regulation (max) |
|---|---|---|
| Leave-on | 1.0 – 1.9 | 1.96 % |
| Rinse-off | 1.0 – 3.0 | 5.35 % |
| Formulation guidelines | |
|---|---|
| pH (effective range) | 2.0 – 5.5 |
| Solubility (Water) | Fully soluble |
| Solubility (Glycols) | Fully soluble |
| Maximum Process Temperature | 80 °C (avoid prolonged periods at high temperature) |
| General information |
|---|
Aquaguard NK12 is compatible with most personal care ingredients. It is suitable for use in low pH formulations, but will lose efficacy if the pH rises above 5.5. The product as supplied may change in appearance from yellow to brown on storage, but no further discolouration occurs when it is used in the end product as long as the formulation remains acidic. |
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