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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.
We do not recommend this preservative for use with clays. We found in our tests, that the clay absorbed the preservative leaving the water element vulnerable to contamination.
Preservatives are needed for most cosmetic formulations that include water. There are some companies that have very stringent manufacturing procedures to ensure the hygiene of the product and the ratio of some of the materials may make the product quite stable against contamination. Shampoos can sometimes do this as they are often very alkaline, However, that alkalinity is not very comfortable on the scalp.
Vitamin E used to be referred to as a preservative because it preserved the shelf life of the product. However, Vitamin E only acts as an antioxidant for the oils in the product, preventing them from going rancid too quickly. It is not a preservative by today's accepted standards. For more information on the difference between preservatives and antioxidants, and the importance of preservatives in cosmetics, take a look at this article; Preservatives & Antioxidants in Cosmetics
I love this preservative as it works really well.
Really easy to use. Gives peace of mind when making DIY makeup. Great customer service.
Very happy with products.
As always first class products, Recommend this company.
Great product, and very fast shipping to North Macedonia. I will order this again.
Friendly service and great products. Positive experience.
Great all round preserative, you need such small amount, so will last well.
This is an excellent product.
Great quality and very fast shipping! :)
I always use this preservative and it’s great