Removing glycerin from this formula - any concerns?

Hi guys,
I have a formula for a foaming wash (passed all the tests) but now I'm thinking to remove glycerin (one of the vendors has a strong opinion against it). Any concerns? Should I increase propanediol?
  • Water (76%)
  • Sodium cocoyl glycinate, Sodium lauroamphoacetate, Cocamidopropyl Sultaine (14%).
  • Alpha-glucan oligosaccharide & Inulin (2%).
  • Glycerin (3%)
  • Leuconostoc/radish root ferment filtrate (3%)
  • Propanediol (3%)
  • Phytic acid (<1%)
  • Citric acid (<1%)
Obviously, will test at the lab but wanted to see if there any known concerns why it wouldn't be a good idea.

Comments

  • PharmaPharma Member, Pharmacist
    If you want something very close and be on the safe side; sure, switch it with propanediol (which has a better anti-microbial boosting capacity than glycerol). On the other hand, does 3% glycerol do anything at all in your formula?
  • Thanks, @Pharma! Well, it is a moisturizer and it does give a bit of a viscosity boost IMHO, but then I haven't seen how it feels without it, perhaps the difference is negligible.
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