Vitamin E T-50

Hello everyone, 

I hope your holidays are going well. 

I did a knockout experiment on a leave-in conditioner I was working on and found tocopherol to be the culprit for creating a greasy film when added at .1%. I tried incorporating tocopherol in the hot oil phase and also tried it in the cool down phase and got the same filmy result.

I purchased the vitamin E T-50 from Wholesale Supplies Plus, so I am not sure the purity is the problem.


Are there any other antioxidants I can use to preserve the oils in my formulations? I read on one of the posts here that tocopheryl acetate does not have any antioxidant properties and is mainly used for claims. Any suggestions will be much appreciated. 

Many thanks,

Sasse

Comments

  • chemicalmattchemicalmatt Member, Professional Chemist
    @Sasse, first, I cannot think so little concentration of T-50 (commercial Coviox T-50 from BASF) would cause noticeable greasiness, so you may want to reconsider your results. Answering your question though: use rosemary oleoresin in the oil phase to mitigate auto-oxidation. Works well but does leave a light pastel color at 0.10%. Then again there is good 'ol BHT. Also, tocopherol acetate does not have much antioxidant potential - often misunderstood by formulators here -  but mixed tocopherols (Coviox T-50, T-90) absolutely do. 
  • @chemicalmatt Thank you for your help! I’ll check those ingredients out. 
Sign In or Register to comment.