Cosmetics Formulation Development

I want to make toner. Can I use fresh mint leaves? Or can I use peppermint oil?

So what additional substances should I add? Can I add more B3 ?

I want to moisturize and make my skin not oily.

The formula I thought of

Mint leaf juice extract 94%

B3 5%

Mild Preserved Eco 1%

thank you

hello

Restrictions on use Direct natural ingredients are preserved to last a long time. Otherwise, it will lose, which comes from 2 ways:

1. microbial contamination

2. enzymatic process

If you are not an expert, it will be difficult to do. There are quite a lot of steps in the process. Including various tests to calculate shelf life.