Home Cosmetic Science Talk Formulating General Preservative for pH 9-10 liquid soap

  • PhilGeis

    Member
    November 27, 2020 at 2:53 pm

    Leo said:

    Chlorox bleach is neutralized to a much lower pH than 12.
    Household Bleach is usually at pH 11-13 depending on use.

    Common soaps have a pH of between 9-11 and have routine warnings to keep out of eyes and what to do if soap gets in your eyes. 

    The pH 11 gel will be used near the eye but it rapidly dries upon skin contact (within one minute). It may, in some, produce an intended mild irritation and mild redness of the skin that resolves after a few minutes. Once dried upon contact with skin, it cannot harm the eye.

    Soap will do more harm to the eye since it is lathered and foamy and people tend to spread soap into their eyes during application. The key is to NOT get the gel in the eye during application with your fingers (which you have much more control than with soap).

    Instructions: Apply to crows feet and under the eyes. Keep out of eyes. Do not apply to eyelids. Keep each eye closed until product is fully dried! Do not apply with other products.

    Additional instructions will be provided if the gel gets in the eyes (rinse immediately with water and seek medical attention if eye irritation develops, etc.). Instructions will also be provided to address if irritation of skin is severe or persists.

    One has to take risks if one wants to use a product that performs and provides effects on eye wrinkles!

    If the product does not produce some form of harmful effect, it will not affect wrinkles….and will only be another marketing BS story….

    The goal is to help 99% and expect that there will be a vocal 1% that will complain.
    The media focus will always be on the vocal 1% and is the reason our society is becoming non-functional…like cosmetics in general.
    Covid as a prime example! We are planning to vaccinate our entire population to preserve the 1% that are expected to die….

    Clorox bleach is 12 pH (“12.1” on MSDS/SDS - https://www.thecloroxcompany.com/wp-content/uploads/2020/03/Clorox-Regular-Bleach2-Bilingual.pdf) in the package, and please recall the observation  of Clorox pH was in ref. to your question re. packaging (bottle composition).  It is not neutralized for packaging and would be unstable if it were.  The only significant difference between Clorox and “common household bleach” is purity, not Na hypochlorite concentration or pH. 

    Common true soaps are rare and do not bear an eye warning - unless they make cosmetic claims, they’re they’re regulated only by EPA/CPSC not FDA.  In any case,  I don’t understand their risk to eyes relevant to your pH 11+ product.   Covid comparison is profoundly irrelevant both in concept and in FDA/CPSC risk considerations and enforcement.

    To the point - what are your in-use data that defend the safety of the pH 11 product usage?  You should be concerned with any % that “complain” when that complaint addresses a safety issue.  Please recall - FDA policy addresses safety in use, not for 99% - but safe in use.  Safety is an affirmative data-based consideration - not the imagination of the seller.  If you’re making cosmetic claims, suggest you consider labeling in compliance with 
    Cosmetics With Unsubstantiated Safety

    Warning-The safety of this product has not been determined.

    21 CFR 740.10

    Not sure if you’re joking re. “One has to take risks if one wants to use a product that performs and provides effects on eye wrinkles!”   If not - would you mind sharing your name and product? 

  • Leo

    Member
    November 29, 2020 at 2:23 am

    @ Ketchito and @PhilGeis.

    There are NO cosmetic ingredients that have a functional effect on wrinkles for which a truthful anti-wrinkle claim can be made! Claims associated with cosmetic anti-wrinkle ingredients are marketing exaggerations/artful language with no proven functional effects in real life against wrinkles.

    To my knowledge, Retin A is the only ingredient with an FDA anti-wrinkle claim-please correct me if I am wrong. The professors in the 1980s in Dermatology were fantastic (Kligman and VanScott and others) and always made mention that without some level of irritation (peeling, redness, etc.), wrinkles will not functionally improve. The anti-wrinkle effects with Retin A are directly proportional to its ability to irritate skin over time. A reduction in the dosage or the formulation of the Retin A to make it less irritating (a cosmetic function), dramatically abolished its ability to visibly affect wrinkles.

    The best that we as cosmetic formulators can hope for with effective anti-wrinkle products is to temporarily mask the wrinkle in some unique way. The sodium silicate (liquid glass) ingredient in association with clay/mineral ingredients can perform this function and has an optimum effect in tightening/masking the wrinkle on skin at pH of 11 (personal observation). There are a number of products in the market with this ingredient at a pH of 9-11(Plexaderm, etc.). The skin can get temporarily red and mildly irritated in some patients (including myself) but the effects on hiding the wrinkles are fantastic. I have tested 100s of patients with a specific formulation containing the silicate -none had severe irritation of the skin that required acute or chronic care for a burn or ulceration of the skin. 

    The safety of this product has been determined-
    Do not apply the product to irritated skin.
    Do not apply with other products.
    The product may produce a mild irritation/redness of the skin and (like some soaps on the market) can cause eye irritation if it makes contact with the eyes. 

  • PhilGeis

    Member
    November 29, 2020 at 11:43 am

    You have tested 100’s  - so what has been the reaction of the “vocal 1%” who complained?   Was this you literally or in controlled clinical study?   As you know, it’s important that subjective  observations with out easy metrics be conducted by uninterested experts.
     
    And what is the product, please?

  • Leo

    Member
    November 29, 2020 at 6:12 pm

    @PhilGeis A few people had mild transient redness including myself. I am still searching for the 1st major complain (1% adverse event was an expected assumption).

    The product is in field testing by medical dermatologists and is expected to be marketed next year. No controlled clinical study is needed since the product has immediate effects that can be visualized by the user and the dermatologist.

    A controlled clinical study is not needed to determine if a forceful punch on the face will produce an immediate visible injury that is effective at reducing the wrinkles around the eyes (irritation and swelling)-this is a fun statement but also the truth-I can vouch for it as being a very effective anti-wrinkle method that lasts for days.

    The main active is the silicate ingredient in combination with another unique  ingredient that expands its activity 10x without adding harm.

    The most important factor is the immediate WOW sensorial effect vanishing the wrinkles within minutes. 

    No placebo/nocebo ingredients with elegant language promising hope in a bottle.

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