Posted by Dan on 1st Jan 2021

Preservative & Antioxidant Systems - New Course

Preservatives are one of the most discussed subjects in Cosmetics. This course looks at what a preservative is, where they come from and how to select your preservative system. New legislation also requires the use of antioxidants in many products containing essential oils and fragrance.

You will learn about the different factors that you can work through when deciding what preservative system is right for your product.

There are a wide range of products that require preservatives. We will look at what products will require a preservative, and which can be sold safely without preservation.

Want to have your product COSMOS certified? (Previously known as Soil Association) COSMOS have a list of approved preservatives that can be used in products registered with them. This course explains how to choose a COSMOS approved preservatives, looking at

Under the current legislation for selling within the European Union it is required that any product that is considered a high risk for microbial spoilage must have a Microbiological Challenge Test performed on it. We will explain the testing required and how to give your product the best chance of passing the test. The course explains common reasons for failing Challenge Tests and changes you can consider to pass next time.

We will even have a look at the microbes to give you an understanding of why you don't want them in your product!

All preservatives have a legal limit that you must work to, in order not to fail on your CPSR. You will learn where this information is available and how to check your quantities do not exceed the maximum legal level.

The most common question we get asked about natural preservatives. You will learn about different natural preservatives available and their 'pros' and 'cons'.

We will look specifically at:

Phenoxyethanol & Ethylhexylglycerin Sodium Benzoate & Potassium Sorbate 'Eco' Preservatives Parabens

Antioxidants are a great addition to any product. They help extend the shelf life of products and will prevent oils going rancid. They prevent the production of peroxides, which can damage and age the skin. You will learn about some different antioxidants and their benefits, and how to choose an antioxidant for your product. You will learn about quantities you will need to use in your product.