Formulation and Mixing Instructions for Stretch Mark Cream with Glycolic Acid

Based on your request for a serum to reduce stretch marks and the previous replies from the staff, a formula using AHA (Glycolic Acid) combined with butters or oils was recommended to help exfoliate the skin and provide moisture. The formula provided results in a cream or butter texture, not a serum.

Here is the formula provided by the staff:

• Glycolic acid 5%
• Shea butter or Cocoa Butter 20%
• Butter Cream Maker 4%
• Preservative 1%
• Water (to 100%)

And here are the mixing instructions based on the staff's guidance:

Mixing Instructions for Stretch Mark Cream Formula

1. Prepare the Oil Phase: Combine the oil phase ingredients (such as Shea Butter or Cocoa Butter) and Butter Cream Maker.
2. Heat the Oil Phase: Gently heat the oil mixture to 60-70 degrees Celsius until melted and combined.
3. Prepare the Water Phase: Combine the water phase ingredients (Water and Glycolic acid).
4. Heat the Water Phase: Heat the water mixture to a temperature close to the oil phase (around 60-70 degrees Celsius).
5. Combine Phases: While blending the oil phase, slowly add the water phase mixture.
6. Continue Blending: Once the cream texture is formed, turn off the heat and continue blending at a low speed.
7. Add Preservative: When the cream has cooled down, add the preservative and blend until fully incorporated.

Please note that Glycolic Acid is sensitive to high temperatures, ideally below 60°C. While the staff's instructions suggest heating the water phase, ensure the temperature is carefully controlled and cool the mixture promptly after emulsification.

The relevant products mentioned in this formula are Glycolic Acid, Shea Butter, Cocoa Butter, Butter Cream Maker, and a preservative like Mild Preserved COS.