DEODORANT- some help, please

Formulating

DEODORANT- some help, please

Posted by Aniela on November 5, 2024 at 1:35 am
Hello to you all,

I’d really want to try a creamy deo, so I’ve settled for this formula (Evonik’s) as my new experiment.

As I haven’t used some of the ingredients till now, your help is much appreciated on the following:

1. Polyglyceryl-3 Caprylate, according to the manufacturer, is “a mild vegetable based cosmetic co-emulsifier with anti-microbial properties especially beneficial for the use in AP/Deo formulations. It reliably reduces odor-causing bacteria on the skin at very low concentrations, while being non-irritating and non-sensitizing to the skin.”

I do not have it, nor can I source it. Should I leave it out, or would Glyceryl Caprylate, used at same %, be a good substitute?

2. I’m thinking to settle for a pH of 4.8- would this be an appropiate pH for this formula?

3. Is it ok to replace the preservative they use with Phenoxyethanol, Ethylhexylglycerin(0.8%), plus Sodium benzoate(0.2%)?

Should I add TGDA (0.2%) too (I don’t have, nor can I source EDTA)?

Thank you very much for taking your time to help.

A Water, deionized(Aqua) 81.33%

Glycerin 99,5%, 5.00%

Trisodium Citrate Dihydrate(Sodium Citrate) 0.30%

B Xanthan Gum 0.90%

Carrageenan 0.10%

C Glyceryl Stearate Citrate 0.40%

Apricot Kernel Oil 0.50%

Decalact deo (Sodium Caproyl/Lauroyl Lactylate; Triethyl Citrate; Salvia Officinalis Oil)

0.30%

Polyglyceryl-3 Caprylate 0.30%

Isoamyl Laurate 0.50%

Triethy citrate 5.0%

Zinc Ricinoleate 1.0%

D Perfume 0.30%

Aqua; Glycerin; Heptylglycerin; Sodium Anisate

2.60%

Citric Acid, 20% sol. 1.47%
- This discussion was modified 1 month, 2 weeks ago by Aniela.
Aniela replied 1 month, 1 week ago 4 Members · 8 Replies
8 Replies

chemicalmatt

Member
November 11, 2024 at 3:13 pm

I surmise you have not actually compounded this in your laboratory yet? Whatever, see if you can get hold of Polyglcyeryl-4 Caprate or Polyglcyeryl-4 Stearate. Use either at >1.0% with that GSC too. Also I might add triethyl citrate (5.0%? yikes!) and zinc ricinoleate are doing 99% of the deodorizing there so DEL that “decalact deo” stuff, save some coin. And yes, you may SUB in euxyl9010. If you do so you won’t need all that citric acid/sodium citrate either - but then you will need to add TGDA since buffered citric acid was doing double-duty as the chelant there.
- Fekher
  
  Member
  November 12, 2024 at 2:04 pm
  
  Do you think that only 5% TEC at pH <5 can make efficient deodorant?
  - Aniela
    
    Member
    November 13, 2024 at 3:12 am
    
    It is just an attempt to a cream-deo🙂
    
    I will del the Decalact and raise the Zn ricinoleate to 2% and see how that performs.
    
    Currently I’m using a gel-deo which contains 3% potassium alum and 4% triethyl citrate- it performs pretty well.
    
    If I’m not aiming for an antiperspirant, is it any other ingredient I should look for, please?
    
    Thank you.
- Aniela
  
  Member
  November 13, 2024 at 2:52 am
  
  Thank you @chemicalmatt ,
  
  Indeed I didn’t make any attempts to it- so I will see what can I source here from what you’ve suggested.
  
  Much appreciated.
PhilGeis

Member
November 12, 2024 at 4:49 am
Total BS

“…anti-microbial properties especially beneficial for the use in AP/Deo formulations. It reliably reduces odor-causing bacteria…”

as is the preservative system
- This reply was modified 1 month, 1 week ago by PhilGeis.
- Aniela
  
  Member
  November 13, 2024 at 3:19 am
  
  Thank you, Dr Geis, I agree- I was just giving more details to make it clear why they introduced the ingredient in the formula, as I was asking for a substitute suggestion.
  
  As for the preservative system, I’m going to use PE9010, sodium benzoate, and TGDA.
  - PhilGeis
    
    Member
    November 13, 2024 at 3:55 am
    
    thanks - and it’s Phil
    - Aniela
      
      Member
      November 13, 2024 at 4:11 am
      
      Can’t promise, but I’ll try- “old school” education doesn’t die easy.