Cosmetics Formulation Development


Toner lactic acid

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Lactic acid toner

Postby phanjarosej » Sat Apr 27, 2019 11:11 pm

Test toner blend Lactic Acid but there is a problem with sedimentation Mixture Water 90% Lactic Acid ( AHA 88%) 5% Disodium EDTA 0.2 % Dimethyl Isosorbide 3% TaraGel 0.8%(not added due to precipitation) Mild Preserved Eco 1%(When adding this, there is precipitate immediately) Precipitation is caused by the Mild Preserved Eco Resistant Value Can't ph? Because ph is at 2 - If ph is at 2, can I use it to wipe my face? -If not, which ph should be adjusted with? -Then you can add TaraGel to create meat? -or if you do it again need to wear กันเสีย is it ph at 2?
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Re: Toner lactic acid

Postby staff » Tue Apr 30, 2019 9:41 pm

Hello, this ultra-low pH formula. Many substances in the formula will have stability problems. and precipitation One thing that is definitely precipitated in this formula, which, according to members, is approximately pH 2, which is Disodium EDTA which if dissolved in water in this manner Should have a pH of about 4.5 or more (however. When in cream or gel formulations, even if the pH is lower than the above level. It might not be a problem. The variety of components must be taken into account in the formula.) According to this formula, if you wish to mix Please cut these items out. Disodium EDTA (precipitated at pH 2) TaraGel There is a high probability of a problem. To create a gel with a high acidity Mild Preserved Eco Not required It has been used because at pH 2, the chance of infection is difficult to grow. can do By allowing to dissolve in water until clear first. (This will take about 5-15 minutes to stir or spin) and then add Lactic Acid in the pH 2 formula can be used on the skin. But not often, the behavior of AHA Based on the low pH of the formula. will cause efficiency ผลัดเซลล์ผิว good, but it comes with irritation with acidity. To thicken the texture, we recommend using Xanthan Gum slightly (0.1-0.2%) completely dissolved in water first, giving Lactic Acid is the element that is added to the last formula.
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