• Formulating

  Oil droplets accumulated on top of oil free serum. How?

  Posted by Abdullah on July 12, 2025 at 8:41 am

  I made this niacinamide serum 8 days ago.

  Niacinamide 5%

  Lactic acid 5%

  Peg 12 dimethicone 0.1%

  Phenoxyethanol 0.5%

  Salicylic acid 0.1%

  Citric acid 0.2%

  Piroctone olamine 0.006%

  Caprylhydroxamic acid 0.05%

  Water

  pH 4.

  Piroctone olamine and Caprylhydroxamic acid dissolved in phenoxyethanol then added. Salicylic acid added when it was hot. Everything dissolved properly and product was clear.

  After 8 days there are some oil droplets on top of the serum. Although this formula doesn’t have any oil or anything that is not water soluble.

  What would be happening?

  Abdullah replied 3 hours, 55 minutes ago 1 Member · 0 Replies
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