In our Diploma courses and Advanced courses we cover in detail how to test and adjust pH. There is a lesson that cover the following:
What is pH?
- When and why to measure pH.
- How to measure pH.
- Deciding if pH adjustment is necessary.
- How to work with and look after a pH meter.
- How to adjust the pH.
- pH adjusters for use in cosmetics.
- Creating a pH adjustment solution.
- Calculating the amount of solid/pure pH adjuster used.
- Rewriting your formula to include the pH adjuster.
- Frequently asked questions.
We also include video demonstrations that show you:
- Measuring and adjusting pH
- Caring for and calibrating a pH meter
- Making a pH adjustment solution
Regular pH meters that test liquid samples start at around $40. pH meters with emulsion probes that test thicker samples are more expensive, from $150. A tutor will be able to offer some more advice when you start the course.
For our beginner level courses like our Certificate in Making Natural Skincare Products we offer a simplified guide to testing and adjusting pH.
We have written an article on How to test and adjust the pH of natural skincare products (and why you should) which you might find useful.