Forum Replies Created

Page 39 of 109
  • Abdullah

    Entrepreneur
    July 7, 2022 at 9:43 am in reply to: What should be the ph value of rinse out hair conditioner, ideally?

    PhilGeis said:

    I’ve seen conditioners from major  cosmetic companies with pH 3-4.

    Did those conditioners have SPDMA and BAPDMA that need low pH to have positive charge or they had BTAC ot other surfactants that don’t need low pH?

  • Abdullah

    Entrepreneur
    July 7, 2022 at 8:39 am in reply to: ❗️ Urgent please help my hair gel!

    You have too much xanthan gum. Usually it is used 0.2%.

  • Abdullah

    Entrepreneur
    July 7, 2022 at 8:37 am in reply to: Please help formula separates

    BTMS is cationic & SSL is anionic. Not compatible. 

    Remove SSL & increase BTMS or remove BTMS, increase preservative blend and add a polymer for stability.

  • Abdullah

    Entrepreneur
    July 7, 2022 at 8:34 am in reply to: leaving out ingredients on the label

    @esthetician922

    You can’t … you must disclose every single ingredient in the product regardless of how little you use.  The only work-around is if you apply to the FDA for a trade secret, but you must have a valid reason for requesting the trade secret and the chances of you receiving one are very, very slim.  

    Will you have to show your ingredients to FDA if you want to apply for a trade secret? 

    Is there any product in market who is legally hiding the ingredients because he has applied for a trade secret?

  • Abdullah

    Entrepreneur
    July 6, 2022 at 4:43 pm in reply to: What ingredients can reduce irritation ?

    @Pharma which pH will cause irritation?
    High or low? 

    And what osmolality? I couldn’t get a good idea from Google search. 

  • Abdullah

    Entrepreneur
    July 6, 2022 at 4:41 pm in reply to: What ingredients can reduce irritation ?

    Does it have glycolic or lactic acid?

  • Abdullah

    Entrepreneur
    July 6, 2022 at 3:08 pm in reply to: My toner needs help !!!

    Ingredients

  • zetein said:

    In soft water AOS produces more foam than SLS. In hard water AOS loses foaming power real quick, but the detergency remains (and is higher than SLS).

    No foam in hard water too.

  • Abdullah

    Entrepreneur
    July 6, 2022 at 7:56 am in reply to: What should be the ph value of rinse out hair conditioner, ideally?

    Perry said:

    The more acidic (lower pH) your conditioner, the less adsorption happens due to isoelectric effects. Instead, the hydrophobic effect is more important. As you increase pH, you increase bonding sites on the hair fiber thus increasing the amount of cationic that will stay on the hair.

    So, the answer is it depends on what conditioning agents you are using.  If you are relying on cationic surfactants, a higher pH is better. If you are using longer chain conditioning agents (say Stearyl vs Cetyl) you’ll get more adsorption as a lower pH.

    You can read all about how things stick to hair in this article. 
    https://www.evernote.com/shard/s1/sh/ed523436-1531-466d-9153-d2bac9293f9f/e8f6f08010f30e21b56ef091ef4536de 

    @perr@Perry in this study they compared deposition at pH 3.6 vs 6.9. as at pH 3.6 hair has almost no negative charge, the deposition of cationic at pH 6.9 would be higher.

    What about pH 4.5 vs 6.9 for a conditioner with 1% BTMC+2% fatty alcohol? 

    Now hair would have negative charge when applying both of these conditioners. So would BTMC deposit more at pH 6.9 compared to pH 4.5 too? 

  • Abdullah

    Entrepreneur
    July 6, 2022 at 2:53 am in reply to: Glycol and Chelating Agents

    Then At pH 6.7 sodium benzoate won’t work. 

    Use IPBC or parabens. 

    That pH is also very difficult to preserve. 

  • Abdullah

    Entrepreneur
    July 6, 2022 at 2:49 am in reply to: Active matter in shampoo

    That depends on your whole formula, how much anionic & amphoteric surfactants you have.

  • What is the preservative in second one and caprylhydroxamic acid percentage in first one?

  • Abdullah

    Entrepreneur
    July 5, 2022 at 2:58 pm in reply to: 2% Salicylic Acid solution cloudy?

    What is your final pH?

  • zetein said:

    In soft water AOS produces more foam than SLS. In hard water AOS loses foaming power real quick, but the detergency remains (and is higher than SLS).

    That is interesting. I thought water hardness has less impact on AOS than SLS. Tomorrow i will wash my hair with soft water and AOS: CAPB 1:1 shampoo and see how it foams. 

    In hard water this formula foamed very bad.

    Do you have any suggestion for as AOS formula to start from for good foaming?

  • Abdullah

    Entrepreneur
    July 5, 2022 at 2:51 pm in reply to: Glycol and Chelating Agents

    What Mark said+ don’t forget to reduce pH <5.

  • Abdullah

    Entrepreneur
    July 5, 2022 at 8:01 am in reply to: Foam volume

    What is your formula?

  • zetein said:

    Are you washing with hard water?

    Yes. TDS is around 700

  • What is the pH of each one and percentage of BTMS? 

  • Abdullah

    Entrepreneur
    July 4, 2022 at 12:12 am in reply to: Emulsifier

    Yes it is very ok.

  • Abdullah

    Entrepreneur
    July 3, 2022 at 5:23 pm in reply to: Are these preservatives compatible with each other?

    FAIL!                 :-(

     My emulsion preservative system (1% PE9010 +0.35% Sodium Benzoate + 2% Pentylene Glycol + 3% Propanediol 1,3 + 0.2 Sodium Phytate + ph. 4.8) failed the elevated temp (42 C) after 3 weeks!! It turned brownish and could see mold forming with the naked eye. 

    I followed GMP, everything was sanitized, the raw materials were from new lots. What might have happened here?

    My emulsifier is Heliosoft + Siligel as co-emulsifier/gelling. There are no WS extracts or hydrosols. Oil phase 15%. There is inulin/fructose at 1% (microbe food?). I know Heliosoft can do up to 0.5% monovalent electrolytes, so Sodium Benzoate should theoretically be fine. 

    I have made several iterations of this formula, always preserved with Germall and never had micro issues at 1 month elevated, or 6 mo. RT, even 14 months for a version without inulin.

    I imagine the answer is some knock-out batches, but what would I even knock-out?

    Any ideas? 
    Thank you. 

    Were you using this batch too or it failed in a closed container without even being touched? 

    What about the smell of product?

  • It is rinse off conditioner

  • Abdullah

    Entrepreneur
    July 2, 2022 at 3:39 pm in reply to: How is this formula? It’s so soapy, and it’s PH is 8.

    What is the inci of Eco wax? 

    Use some phenoxyethanol or DMDM hydantoin too. That preservative may not be enough alone even at pH 4.8.

    Which vitamin e are you using? 
    You dont need more than 0.1% in a formula. 

  • Abdullah

    Entrepreneur
    July 1, 2022 at 11:13 am in reply to: Homogenizer

    Inside this it has smaller rotor stator. 

    You can talk with manufacturer, and see for yourself what components it has comparatively. 

    Overall this one is bigger, can produce larger batches, maybe able to run for longer and is cheaper. 

  • Abdullah

    Entrepreneur
    July 1, 2022 at 3:06 am in reply to: Homogenizer

    this shape looks to be better value

  • Abdullah

    Entrepreneur
    June 30, 2022 at 10:04 am in reply to: Homogenizer

    Are you purchasing from Alibaba?

Page 39 of 109
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