Solubilizing a fragrance into dimethicone hair serum

please advise on how to solubilise a fragrance into a silicone. I have not done much research but it's my fifth trial of adding different percentages of PEG-40 Hydrogenated castor oil with a fragrance first then adding the dimethicone or cyclomethicone but failed, it turns turbid and i need it to be crystal clear. thank you so much.


  • Ask your supplier to provide you Silicone compatible fragrances, PEG-40 Hydrogenated Castor Oil won't do the trick here. How much fragrance you are trying to add?? In my experience we never went beyond 0.3% in most of the formulas and we had to be careful with our fragrance choice.
  • procetyl aws at 1.5:! ratio with fragrance may work.
  • @DRBOB@VERDIENT.BIZ procetyl aws is a water soluble surfactant. If there is no water in the formula, i think plain fragrance+silicone can provide the clear finished product you desire @biochemist101. I agree with @Chemist77, you should add fragrance in small increments to see up to what level the clarity can hold up.
  • Ok, i will try and revert.
  • Best bet is submit the base to perfumer and give him/her an in-use guidance concept with a cost per hundred weight of product based on fragrance you need.This way levels and cost can be balanced and neither you or they are restrained.
  • thanks for reply.
  • Use C12-15 alkyl benzoate to solubilize the fragrance oil first (assuming it is miscible; most are) then disperse this into cyclomethicone, then slowly add the dimethcones and higher MW silicone derivatives. If it clouds, you may need to increase your cyclomethicone level at the expense of the others - or reduce the fragrance level. What CAN'T Finsolv TN do, I ask you?
  • @chemicalmatt great stuff as usual and just in time. The same ester I tried to use @ 0.05% level to minimize whitening in my regular hydro-alcoholic clay. Seems the formulation turns little hazy and the whitening hardly been reduced. Could you suggest a way of adding it properly or it won't go in this one. My formulation has ethanol denat., water, HEC, PEG 8, Propylene glycol, little alkali to neutralize and buffer the final pH and Al Chlorohydrate. 

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