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Green Tea Extract discoloring
I make a 10% Lactic Acid gel where I add 0.25% Green tea powdered extract. The serum is turning from light brown to dark brown.
I love green tea in my products. Is there any solution?
Please help! -
4 Replies
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less powdered green tea, opaque packaging, antioxidants
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This is to be expected. Green tea acts as an indicator.
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I have previously used a powdered extract of purified green tea EGCG, which turns brown over time as well. The only thing that mitigated this was sodium metabisulfite and low pH. I was worried about the irritation potential of the sodium metabisulfite, so it was never fleshed out into a product.
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Now I understand why many companies use very tiny % of green tea in their products. I wanted to be different but now need to find better soothing antioxidants.
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