When ever you are making a product you can work out the percentages of each product required as long as it adds up to 100%
Here is an example
Water based moisturiser and lotions- You can make the cream lighter by having a higher % of water to oil, if you would like a richer cream then you can also add a butter.
Basic Tips and Suggestions for Making Creams
Don't worry if this seems like a lot can go wrong, it is really very simple.