HOW TO SOLUBILIZED CITRIC ACID IN OIL

I AM MAKING COLOR CHANGING LIPSTICK USING RED 27,TO GET COLOR CHANGING EFFECT I NEED TO LOWER DOWN THE PH BELOW BODY PH.NOW I GOT PROBLEM WITH CITRIC ACID SEDIMENTATION WHEN ADDING CITRIC ACID TO MY FORMULATION BUT WITHOUT CITRIC ACID MY LIPSTICK TURNS RED

Comments

  • PharmaPharma Member, Pharmacist
    By definition, there is no pH in an anhydrous product (actually, there is but this doesn't have any influence on everyday life) ;) .
    If you wanted to add an acid (for whatever reason), use an oil soluble one (salicylic acid comes to mind).
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