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The water-soluble potassium sorbate is the potassium salt of sorbic acid. In nature, sorbic acid and its salt are found in the unripe fruits of mountain ash (rowan).


When dissolved in water - at a pH value below 5.5 - the sorbic acid, which has a preservative effect, is formed from the potassium sorbate. It very effectively inhibits the growth of yeasts and molds but has little effect against bacteria. Potassium sorbate should therefore be combined with ethanol (ethyl alcohol) or Dermosoft GMCY. Please remember that potassium sorbate loses its effect above a pH value of 7. Therefore, pay attention to the pH value of your formulation and, if necessary, adjust it to the optimal range (pH 4.0 - 5.5) with a little acid. According to European cosmetic regulations, a maximum of 0.6% of free acid may be contained in commercial cosmetic products, which corresponds to 0.8% potassium sorbate. Usually, however, significantly less is already well effective.


Application concentration:

0.2 % (as granules)

1.0 % (as 20% solution - dissolve 10 g potassium sorbate granules in 40 g dist. water)

Potassium Sorbate

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SKU: 1744
VAT Included
    • Potassium Sorbate
    • H315 Causes skin irritation.
    • P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove any contact lenses if possible. Continue rinsing.
    • H319 Causes serious eye irritation.
    • P280 Wear protective gloves/protective clothing/eye protection/face protection.
    • P337+P313 If eye irritation persists: Get medical advice/attention.
    • P332+P313 If skin irritation occurs: Get medical advice/attention.
    • P321 Special treatment (see ... on this label).
    • P362+P364 Take off contaminated clothing and wash before reuse.
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