Excellent product - works amazingly
"Excellent product - works amazingly Received my order quite quickly."
SKU: 86065
Preservative K
Preservative
Broad‑spectrum
Emulsion Friendly
Palm Free
$8.00 USD
$2.67
/
10ml
Broad-spectrum protection against bacteria, yeasts and mould.
Palm-free preservative blend.
Works across anionic, cationic and non-ionic systems.
Effective in both O/W and W/O emulsions.
Ideal for leave-on and rinse-off cosmetic products.
Preservative K
$8.00 USD
$2.67
/
10ml
Minimum Shelf life:
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Everything You Need To Know
A clear, virtually colourless (the slightest hint of pale yellow) mobile liquid with a slight odour.
Preservative K offers a broad, balanced spectrum of effect against bacteria, yeasts and mould fungi.
The individual materials that make up Preservative K are listed on the Cosmetic Ingredient Database (CosIng) here.
The spectrum of activity is supplemented and balanced by the use of Benzyl Alcohol (effective against gram-positive bacteria) and Phenoxyethanol (effective against gram-negative bacteria).
Effective in anionic, cationic and non ionic systems.
The ingredients that make up Preservative K are all palm free.
Skin Care
Effective in oil in water (O/W) and water in oil (W/O) emulsions so can be used in creams and lotions for all skin types.
Hair Care
No direct hair care usage but it is effective in hair conditioners, hair packs and shampoos.
Other
Use at 1% but it is safe to go as high as 1.5% for example when using herbal infusions and decoctions.
Always check with your cosmetic safety assessor to ensure the percentage is correct for your particular product.
Add to Stage 3 (below 40°C) as it is not heat stable above 80°C. It is only effective when the pH of the finished product is below 5.5.
It is completely ineffective if the product is higher than pH 5.5. It is soluble in glycerin but only partially soluble in water. Always weigh the amount of preservative used to get the correct percentage needed.
Clays are notoriously difficult to effectively preserve as they tend to pull the preservative in to itself, leaving the water stage under preserved.
We have found in our own tests, that Preservative K was effective when used at 1.5% but there are many other variable to take into account and you should only rely on the results of your own challenge tests.
Although some of the older publications still suggest using drops as a measure, this is not accurate as dropper sizes vary.
Suggested Blends
Do not blend different preservatives with each other unless you are experienced in this area and can have the result tested for efficacy.
If you are adding extra materials to a base product, you may need to add extra preservative as well.
Ensure the same preservative as the base product is used.
None when used in the correct manner.
For more information and guidance on making your own skin care products please see Aromantic's books and eBooks in our Publications section.
These notes are not meant to replace medical guidance and you should seek the advice of your doctor for your health matters.
The formulae are given in good faith and are intended for educational purposes only.They have not been evaluated or tested in any way and Aromantic Ltd. makes no claim as to their effectiveness.
It is up to the reader to ensure that any products they produce from these recipes are safe to use, and if relevant, compliant under current cosmetic regulations.
Here is a link to all non batch specific documents for this product Link to Technical Documents
If you have any questions about the documents or need the Certificate of Analysis (COA) for a product which you have recived, then please request that here.
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Why Choose Aromantic
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Ethical Sourcing
Ingredients chosen for performance, ethical origin, and reliability.
Broad or trend-driven sourcing without formulation focus.
Knowledge Sharing
Detailed, reliable ingredient information to help you formulate with confidence.
Often minimal detail or unclear data about ingredient properties or usage.
Reliable Value
Professional-grade natural ingredients, tested and documented so you know what to expect from each batch.
Documentation and testing data are often minimal or difficult to access.
Product Guidance
Honest, detailed information that helps you select ingredients with confidence.
Limited usage information makes ingredient selection harder.
Versatility
Serves both home and professional formulators with a polished, information-rich experience.
Cater to a wide audience but with simpler websites offering less detailed guidance.
Ingredients Selection
Carefully curated range covering every key category in natural formulation.
Sell many raw materials but without formulation context.
Company Transparency
Family-run business built on honesty, openness, and ingredient transparency.
Transparency varies depending on supplier or distributor.
Customer Focus
We listen, adapt, and build long-term relationships with our customers.
Limited expertise available beyond order fulfilment.
Overall rating: 5.0 / 5 from 5 reviews.
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Reviews
Why did the price increase so much??
"This is my go to preservative for my products, 500 ml used to be less that £20, why did the price increase so much!??🤬😭"
Great service
"Service, excellent 👌 I would have liked some more details on how much to use while blending with different mediums. I had hoped for a printed sheet of instructions with my order."
Great preservative for helping to achieve ph levels
"Love this. I thought it was going to be a nightmare as you have to have your ph levels of your product acidic in order to accommodate it. But once it was illustrated how to achieve this with help from their super technical department, it was plain sailing. Really pleased with it. Would recommend!"
Exactly what I needed
"I needed a preservative which extended the shelf life of my products without compromising the natural ingredients and this product delivered. I am very pleased."
Q&A
- The product is already expired over a month ago. Will it still be effective at preserving my products?
- Thank you for your enquiry. No, we would not recommend using the Preservative after it's expiry date.
- Hi, I bought activated charcoal to make a face mask but forgot to buy this Preservative K. However I have Preservative Eco and Preservative 12. Can I use either of those? Thanks.
- Thank you for your enquiry. Please can you confirm what recipe you are using?
- Hello, could you send me MSDS for preservative K please, as i need to know is it compatibile with our formula. Thank you Ewa Augustyniak
- Technical documentation can be requested via our website here;https://www.aromantic.co.uk/pages/request-technical-documents
- Hello Which is the most natural preservative you are selling ? I’m looking something which preserve for not very long time Thank you
- Thank you for your enquiry. Unfortunately there is no such thing as a natural preservative but we do supply a preservative that can be used in natural products. Please follow the below link for more information; https://www.aromantic.co.uk/products/preservative-eco
- Hi there, I want to make a body butter which will contain, coconut oil, jojoba oil, Shea butter and essential oils. What will be the best preservative to use for these ingredients ?
- Thank you for your enquiry. Please see the below response from our Research and Development Team. "As there is not water in your formulation, you do not need a preservative. Your formulation is lacking an antioxidant though - Vitamin E will do that for you."
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Trading Address:
Aromantic Ltd, 15 Greshop Road, Forres, IV36 2GU, United Kingdom
Phone Number: +44(0)1309 696900
Email: info@aromantic.co.uk
Company Number: SC299277
VAT: GB683087901