We've been experiencing significant pressure build up/bubble formation after 2 weeks of 40 degree stability testing with an emulsion. There is minimal discolouration of the Ascorbic acid at this stage, so we are doubting whether this is related to the oxidation of the ascorbic acid. We cannot seem to solve the problem and would appreciate any thoughts.
The formula includes the following and is cold process.
- 2.5% Sepinov EMT 10 (Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer)
- 1.2% Sucrose Stearate
- 0.5% Sepiplus 400 (Polyacrylate-13 & Polyisobutene & Polysorbate 20)
- 5% Ecosilk (Isoamyl Laurate and Isoamyl Cocoate) --> to reduce stickiness of ascorbic acid
- 12% Sweet almond oil
- 1% Tocopherol
- 3.5% Dermosoft 1388 Eco
- 2% Sodium PCA
- 2% Glycerin
- 1% Panthenol
- 0.3% Sodium Phytate
- 0.1% Xanthan gum
- Water up to 100%
- 0.1% Ethylhexylglycerin
- 15% Ascorbic acid
- 5% Lactic acid
- 5% Sodium hydroxide solution (20% Sodium hydroxide solution)
Should point out that this is to have a 6 month expiry date from production as obviously the formula contains water and ascorbic acid.
Would highly appreciate any thoughts.