why aha mask is burning after application

Formulating

why aha mask is burning after application

Posted by kajalthakur on April 27, 2023 at 6:32 am

Hello formulator,

i just formulate AHA mask with lactobionic acid ….but after applying it i feel burning sensation around my nose .Can you please suggest me is it ok or not????

lactobionic acid 3%

kajalthakur replied 1 year, 7 months ago 5 Members · 9 Replies
9 Replies

gordof

Member
April 27, 2023 at 7:31 am

Please give us a little more information about your Ingredients and % of it. For example, it can be caused by Potassium sorbate in a higher concentration or ……. there are so many reasons like too much or the wrong Surfactaned for a wash of.

Course AHA itself is able to promote stinging on the skin as well as lactic acid. depending on the ph of the product 3 % seems very sour to me.
- kajalthakur
  
  Member
  April 28, 2023 at 1:09 am
  
  Thank you, gordof .
  
  FORMULA
  
  aqua -Q.S TO 100%
  
  EDTA -0.2%
  
  lactobionic acid -3%
  
  lactic acid 0.5%
  
  Xanthan gum-2%
  
  Glycerin-2%
  
  Liquorice extract-1%
  
  Aloe vera extract-1%
  
  Euxyl 9010-1%
  
  Propandiol -2%
  - gordof
    
    Member
    April 28, 2023 at 2:48 am
    
    i would suspect your ph is very acidic with this formulation. for how long do you let it stay on the skin before rinsing it off?
    
    I guess if you feel stinging it already exfoliates all the dead skin and you are starting to exfoliate the skin that is intact.
    
    For the ingredients, some people react to Phenoxyethanol and Propandiol but I would bet more on the time and acidic train than on that being the reason.
    - kajalthakur
      
      Member
      April 29, 2023 at 5:43 am
      
      Thank you for your support. Can you please share detail about ph of exfoliating mask or serum .Also i found slight color fading after formulating mask.( 2 weeks after)
Paprik

Member
April 28, 2023 at 2:37 pm

I think that the area around the nose is usuallly thiner or if you have a cold or something and blow your nose often it can get easily irritated. (?)Or you just have more sensitive area around the nose. Has anyone else tried the product? If so, did they experience the same?

What is the final pH of the product?
- kajalthakur
  
  Member
  April 29, 2023 at 3:33 am
  
  3.4 is the final pH of product. @Paprik
Graillotion

Member
April 28, 2023 at 4:14 pm

With nary a mention of final pH… You scare me!
BetaOneChem

Member
April 28, 2023 at 4:24 pm

You should have an anti inflammatory ingredient in this formula, like Bisabolol at 1% or so. Add a superfatting material like Polysorbate 20. Increase pH with its conjugate base to about pH 4. It should stop the stinging and help.
- kajalthakur
  
  Member
  May 6, 2023 at 4:49 am
  
  Thank you@BetaOneChem…..i also want to know does low ph. product changes its color .Or I need antioxidant in my product (AHA MASK).