Gentle Shower Cream/Shampoo Formulation: pH Adjustment and Thickening

Asked by: benjamas_al On: April 02, 2016 Product Type: Cosmetics

Question

I am formulating a gentle shower cream and shampoo using Mild-Wash, Coco-Foam, and Creamy Foamer. I plan to adjust the pH to 5-7 using Citric Acid, adding 0.1g at a time, and thicken the formula with SugarThick at 3%. Is this method correct? Could you please provide detailed mixing instructions for this formula, including when to add preservatives and fragrance?

Answer

Gentle Shower Cream & Shampoo Formulation

Yes, your proposed adjustments using Citric Acid to adjust the pH and adding 3% SugarThick™ are correct based on the previous staff recommendation.

Here are the mixing steps for your gentle shower cream and shampoo formula:

  1. Combine the surfactants: Mix Mild-Wash™, Coco-Foam™, and Creamy Foamer™ with the water. Stir gently until fully combined. Avoid vigorous stirring to prevent excessive foam.
  2. Adjust pH: Measure the pH of the mixture using a pH meter. Gradually add Citric Acid, stirring well after each small addition (e.g., 0.1g at a time), until the pH is in the range of 5-7. This range is suitable for both skin and hair.
  3. Thicken the formula: Gently warm the mixture to 60-70°C. Add SugarThick™ (3%) and stir until it is completely dissolved and the mixture thickens. If you prefer not to heat the entire mixture, you can warm the SugarThick™ separately until it becomes liquid and then add it to the main mixture while stirring.
  4. Cool down: Let the mixture cool down to below 40°C.
  5. Add preservative: Once cooled, add Phenoxyethanol SA (1%) and stir to incorporate.
  6. Add fragrance: To achieve a mild scent like baby shampoo, you can add a fragrance oil such as Bedtime Baby Bath (Compare to Johnson). Start with a low percentage (e.g., 0.1-0.5%) and add more gradually until the desired scent intensity is reached. Mix gently.
  7. Final check: Measure the pH again to ensure it is still within the desired range (5-7). Adjust with a tiny amount of Citric Acid if necessary.

This formula should provide a gentle cleansing product suitable for both body and hair, with a pleasant baby shampoo-like scent.