Making a hydrating lotion and the pH came out at 3.5
I understand I can raise the pH through Triethanalomine, Sodium Hydroxide or Arginine which I have just learnt.
I used citric acid as a chelating agent but understand it also can decrease the pH a small amount. Is it ok to keep citric acid in the product and up the pH with one of the above 3 ingredients or will that just make them work against each other.
For the sake of it ingredients were:
Xanthan Gum 0.5%
Cetearyl Olivate Sorbitan Olivate (Olivem 1000) 4%
Glyceryl Stearate 2%
Cetyl Alcohol 2%
Shea Butter 1.5%
Macadamia Oil 4%
caprylic capric triglyceride 5%
Vitamin E 0.3%
Glyceryl Caprylate/glyceryl undecylenate (plantaserv N) 1%
Lemon Lime Frag 0.3%
Citric Acid 0.2%
Also after watching the Preservatives webinar yesterday I think I will add a second preservative, both at half level.