CFI Potassium Sorbate - Food Grade (1kg)
CFI Potassium Sorbate - Food Grade (1kg)
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Potassium Sorbate is a food-grade preservative ingredient used in cosmetic formulation to help control yeast and mould in water-containing products. It is the inactive salt of sorbic acid and becomes active in the presence of water, which is why it is added to the water phase of a formula. This is a raw preservative ingredient rather than a finished product, and it is commonly paired with sodium benzoate for broader coverage. It is most effective in more acidic formulas.
♡ Why we love it: We choose to stock Potassium Sorbate because it is a useful preservation tool for formulators who understand how to build an appropriate water-based system. It is especially practical in lower-pH products where a simple preservative pairing is needed.
Suggested Reading: Quick Guide To Preservatives .
Key properties of cfi potassium sorbate - food grade
- INCI Name: Potassium Sorbate
- Grade: Food Grade
- Form: Powder
- Usage Rate: 0.1 to 0.3%
- pH Preference: Around 4.4 for maximum efficacy
- Ingredients: Potassium sorbate
What is potassium sorbate used for
- Creams and lotions
- Shampoos and makeup products
- Water-containing cosmetic formulas
- Lower-pH preservation systems
- Preservative systems used together with sodium benzoate
Who is potassium sorbate for
- Formulators preserving water-containing products
- Lower-pH cosmetic systems
- Preservative systems paired with sodium benzoate
- Anhydrous products with no water phase
- Formulas above pH 6
- Finished cosmetic use without formulation
Potassium Sorbate Is For:
Potassium Sorbate Is Not For:
How to use potassium sorbate
- As a Preservative Ingredient: Use at 0.1 to 0.3% in the water phase.
- As a Lower-pH Preservative: Adjust the final product to about pH 4.4 for maximum efficacy.
- Processing Tip: Potassium Sorbate is not effective at all in products with a pH over 6.
- Processing Tip: It is commonly paired with sodium benzoate for broader preservation support.
Potassium sorbate safety instructions
- Keep well sealed between uses
- Store away from children, animals, moisture, sunlight, and heat
- Patch test finished products before wider use
- Discontinue use if irritation occurs
- If pregnant or breastfeeding, seek professional guidance before use
Faqs
Q: Does Potassium Sorbate preserve against bacteria on its own?
A: No. It is effective against mould and yeast, but is commonly used with sodium benzoate for broader protection.
Q: Where is Potassium Sorbate added in a formula?
A: It is dissolved in the water phase.
Q: Why does final pH matter so much?
A: It is most effective in more acidic formulas and is not effective in products above pH 6.
About Preservatives
Our range of preservatives are all suitable for natural and organic formulations, are paraben free and are easy to use. Correctly preserving your products is vital; read more here: Quick Guide To Preservatives

I combined this with sodium benzoate (food-grade) to preserve my African herbal mixture that I sell. As a test, I filled one 1-liter bottle with the unpreserved herbal concoction and another with the preserved herbal mixture. By the second day, I spotted fungi growing in the unpreserved herbal mixture, while only none appeared in the preserved one. It's the second week and haven't observed any growth of fungi. Additionally, these additives didn’t alter the aroma of the herbal blend, and it maintained its effectiveness.
The service is excellent and will definitely order from you again.
I ordered my Potassium Sorbate at 07h30 and it was delivered to my door by 3pm the same day. Potassium Sorbate is perfect for sugar based goods, to stop fermentation or mould from growing.
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