Home Cosmetic Science Talk Formulating How to make a lotion non-sensitizing & non-irritating?

  • How to make a lotion non-sensitizing & non-irritating?

    Posted by Margaret on January 26, 2024 at 1:02 pm

    <div>I have cut & pasted an article from the Cosmetics & Toiletries magazine about compounds in citrus oils that can cause photoxic reactions in the skin.</div>

    MY QUESTION:

    What sort of ingredients can one add to a lotion or cream to make using citrus essential oils non-sensitizing & non-irritating?

    Suggesting I use synthetic fragrance oils would be O.K. with me, BUT I have NOT found a nice smelling synthetic fragrance oil in creamsicle so I HAVE to make my own with orange essential oil and vanilla fragrance oil.

    I use 0.5% allantoin in my lotions & creams. I had read that allantoin would bind to or react with some chemicals in a formula that might otherwise possibly be irritating. Before anyone “jumps all over me”, because I have stated something incorrectly, I read the article a few years ago, and I’m not a trained chemist, so it could be I am mistaken or have misremembered what I read.

    https://www.cosmeticsandtoiletries.com/magazine/article/22880162/how-psoralens-and-terpenes-pose-hidden-allergic-potential-in-botanical-extracts?utm_source=newsletter-html&utm_medium=email&utm_campaign=CT+E-Newsletter+01-11-2024

    THIS IS WHY I’VE ASKED MY QUESTION, A QUOTE FROM THE ABOVE ARTICLE:

    In the United States, the presence of psoralens in certain citrus ingredients is addressed by the Cosmetic Ingredient Review (CIR) Expert Panel.<sup>16,17</sup> The panel concluded that citrus-derived peel oils, citrus peel-derived ingredients and other citrus fruit-derived ingredients containing psoralens are safe for use in rinse-off and leave-on cosmetic products under given conditions: when formulated to be non-sensitizing and non-irritating; and provided that leave-on products do not contain more than 0.0015% (15 ppm) 5-methoxypsoralen due it its potential for phototoxic reaction in the skin.

    PhilGeis replied 1 month ago 3 Members · 2 Replies
  • 2 Replies
  • erindlea

    Member
    January 26, 2024 at 3:42 pm

    This website is a good resource for safe use concentrations of various essential oils. https://ifrafragrance.org/safe-use/library

    You can also google “lime essential oil IFRA concentration,” for example, and the PDF showing IFRA standards for lime oil will come up.

  • PhilGeis

    Member
    January 27, 2024 at 9:49 am

    If “binding” to reducing biological activity - reducing exposure and irritation - why add?

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