I'm making a body scrub with oils. I'm a crafter. I see lots of conflicting information about the use the use of preservatives in products that contain no water. Do you think I need one? I have tried looking at other professional brands to check but it seems they don't use one. My recipe is basically oils salt and an emulsifier. I'm in the UK, I pay for my assessments.  Thank you : ) 


  • PharmaPharma Member, Pharmacist
    Salt can also act, depending on quantity, as preservative ;) .
    If one uses your scrub, does it get wet and stay wet for a prolonged period of time like a piece of soap in the showers? If yo, then you (or rather your consumers) are better off with a preservative (by preference, one strong against fungi).
  • TyssTyss Member
    I need your support about my multi-purpose detergent formula (laundry, surface and dishwaching liquid) using MICT/MIT as preservative
    I am looking for the right and effective dosage of this preservative for these types of formulas 
    The pH of our formula is between 7 and 10.5 
    I used 0.06 % of MICT/MIT but I can not known that this dosage is effective 
  • BelassiBelassi Member, PCF student
    Tyss, first, this is a cosmetic chemist group, not a domestic products group. Secondly, it is not good manners to jump into someone else's question with a completely unrelated topic.
    Third, I do hope your product will not come in contact with skin, not with that preservative.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • TyssTyss Member
    Dear Belassi,
    First of all thank you for your answer.
    Secondly, I know that it is a group for cosmetics. However, I have seen several members who are asking for help with their detergent formulas.
    Third, I do not see that I jumped into the question of other people, since my subject is about the Preservative. But on the other hand, I apologize to everyone.
    Finally, it's not good to attack people in a public forum and especially people who really ask for help, is not it?
  • PerryPerry Administrator, Professional Chemist
    @Tyss - Thanks for your participation. I think what @Belassi was trying to do was to encourage you to start a new discussion.  While I'm sure you didn't mean it, your new question diverts attention from the original poster's question and that is a bit unfair to that person. It would be more appropriate to start a new discussion.  There's a button on the right column to do that.

    Belassi also is not a fan of MICT/MIT as a preservative due to known problems of sensitization. It is mostly banned from leave-on products in the EU and highly restricted in most rinse-off products.

    MICT/MIT is used at 7 - 15ppm so your use level is quite high. But is also not stable over a pH of 8. Whether your use of it is effective can only be determined by a microbial challenge test.

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