Potassium Sorbate (Cosmetic Preservative) - Essentially Natural
Potassium Sorbate (Cosmetic Preservative) - Essentially Natural
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Essentially Natural Potassium Sorbate is a preservative ingredient commonly used in DIY water-based cosmetics. It is effective against mould and yeast and is often paired with sodium benzoate for broader preservation support. Potassium sorbate is activated in water and works best in acidic formulas. This ingredient is used at low percentages and is added to the water phase of suitable formulations.
Interesting reading: Quick Guide To Preservatives
Key properties
- Ingredient Name: Potassium sorbate
- Form: Powder
- Typical Usage Rate: 0.1 to 0.3%
- Best Efficacy pH: Around 4.4
- pH Limits: Not effective above pH 6
- Application: Water phase preservative support
- Size Options: 50g, 100g, 250g, 500g, 1kg or 5kg
What it’s used for
- Help preserve creams, lotions, shampoos, and water-based cosmetics
- Support protection against mould and yeast in DIY formulas
- Pair with sodium benzoate for broader preservation coverage
- Add to the water phase of emulsions, gels, and cleansers
This product is commonly used to:
Who it’s for
- DIY formulators making water-based products that need preservation
- Makers who understand pH adjustment and preservative systems
- Formulators looking for a low-use-rate preservative ingredient
- Oil-only products with no water phase
- Formulas that cannot be adjusted into an acidic pH range
- Anyone looking for a finished preservative-free product
This product is suitable for:
This product is not for:
How to use
- As a Water Phase Preservative: Dissolve in the water phase at 0.1 to 0.3% and mix until clear.
- As a Combined System: Use with sodium benzoate for broader protection.
- Processing Tip: Adjust the final pH to around 4.4 for best efficacy and confirm with a pH test.
Safety instructions
- Patch test finished products before use, some people may be sensitive.
- Avoid inhaling powder and avoid contact with eyes.
- Keep well sealed and store away from moisture, sunlight, and heat.
- Keep out of reach of children and pets.
- If pregnant or breastfeeding, seek professional guidance before use.
Faqs
Q: Can I use potassium sorbate alone as my preservative?
A: It is mainly effective against mould and yeast, many formulas use it together with another preservative to broaden
protection.
Q: Why does pH matter so much?
A: Potassium sorbate is most effective in acidic formulas and becomes much less effective at higher pH.
Q: Can I use it in soap?
A: It is generally not suitable for high pH products like true soap.
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

The products do what it needs to do. I am very happy with purchases.
Ideal product for our preservative needs, works well for our confectionery goods.
Thank you for another top quality product. Its effective and easy to work with. I appreciate the gift that comes in the package.
Works very well and received it very very faster than expected
Works so well! Zero taste or smell, and keeps products protected from mold growth. Will continue ordering from your company! Delivery was extremely quick too!
Excellent product am over moon
The product is exactly what I have expected; it works well in preserving my products, and your delivery is very quick.
Exactly what I ordered and the presentation is neat and professional too. Thank you
I am so impressed with neat packaging and the product itself is fresh. I'm using it in sauces so therefore I'm very happy with the product. Thank you for the great n efficient service as well as the little gift...I felt so special.
Can't complain about anything you guys are selling good quality staff here bought few and am happy
Good quality and efficient delivery.
Hi not a review but question, what is the exact amount of potassium sorbate to water and then how much solution is added to a litre of sauce, eg homemade preserve?
Hi Rob, there are some basic usage instruction s on the product page if you scroll down :)
But these may vary depending on the product so it's best to find out what others are doing, and also experiment a bit to get the best results
Easy to order, quick delivery. Highly recommend you guys
Thank you for a quick delivery. Very happy with the service I received
These are the best ever, thank you
I managed to find baking products on Essentially naturals webite that I could not find anywhere else. Delvery was prompt and products is of high quality.
I am very happy with service and product I ordered
Not a review but a question. Can I use this to preserve food? Like gummies,etc
Hi, yes you can use it to preserve foods. It is sometimes also used together with sodium benzoate and citric acid (acidity regulator).
The quantities needed will depend on the thing being preserved, so you may need to do a little research into how much is used for the particular food you wish to preserve.
I am in the process of trying to make my own balbini gell ... still researching recipes and methods.... we have a lot of balbinella on the farm
Thank you so much! smooth order and receipt process with regular progress love the efficiency thank you
I need this product for my soap making project
I have been looking for this product for months now and thanks to Naturally Essential, I am glad to have bought this product. The store should definitely continue stocking it.
Easy to use
Hie do you sell these products in your shop 1.sodium Benzoate,2.potassium sorbate,3.citric acid,4.orange bring,5.flavours/oil,6.colours
Hi there Wadzanai,
Thanks for reaching out :)
Here is a quick run down of what we house:
- Sodium benzoate – Yes, we stock this
- Potassium sorbate – Yes, we stock this
- Citric acid – Yes, we stock this (both monohydrate and anhydrous)
- Orange bring – We're not too sure what you mean here, but we do house Orange Sweet Peel
- Flavours / oils – We don’t stock flavour oils specifically. However, we do stock a wide range of essential oils and carrier oils, which are commonly used in cosmetic formulations (not food flavouring).
- Colours – Yes, we stock several natural colourant options, like clays, micas and botanical-based colourants.
You are free to order them on our site or let us know what you're interested in, and their volumes, and we'll set up a quote for you.
I hope that helps, please do reach out if you have any further queries.
Kindest regards,
Aiden
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