[bosekk]

Hi there, I made some glycerine zhimu extract. However I noticed the extract turns darker and eventually black. When I made infused oil, there's no such problem.

But oil clogs my pores so I switched to glycerine. I think it's better to add some antioxidant into homemade herbal extract. Any idea what I should add? I have Ethylated ascorbic acid serum. But I'm not sure if adding vitamin c is a good idea cos it works the best with low PH value.  Thanks.