Gentle Foaming Agents for Bath Bombs Suitable for Children

Asked by: p.kaewta On: April 10, 2018 Product Type: Cosmetics

Question

I am looking for gentle foaming agents for bath bombs, especially those suitable for children. Is SLSA available, or what other gentle powder/flake surfactants would you recommend for this application? I need options that provide good, stable foam.

Answer

Gentle Foaming Agents for Bath Bombs Suitable for Children

For creating gentle bath bombs, especially for children, it is recommended to use highly gentle powder or flake surfactants.

While SLSA (Sodium Lauryl Sulfoacetate) is popular in other countries, there are other excellent gentle options available that are well-suited for bath bomb formulations:

  • Cond-Foam™ (Sodium Lauroyl Sarcosinate, Powder): This is a very gentle, non-sulfate surfactant that provides a fine, soft, and stable foam. Its powder form makes it ideal for dry bath bomb mixtures.
  • IseFoam™ (Sodium Lauroyl Methyl Isethionate): A highly gentle surfactant available in flake form, known for producing good foam and commonly used in bath bombs.
  • Sodium Lauroyl Methyl Taurate (Powder, 95%): Another highly gentle, amino acid-derived surfactant in powder form that provides good lather.
  • Potassium Cocoyl Glycinate (90%, Solid): A highly gentle, amino acid-derived surfactant in flake form that offers good foaming properties.
  • Sodium Lauroyl Lactylate: This is a very gentle anionic surfactant derived from natural resources. While it is a wax form, it functions as a foam booster and stabilizer and can contribute to foam quality.

Usage Rate: The appropriate percentage depends on your specific formula and the desired level of foam. Gentle surfactants can typically be used from 1% up to 40% in cleansing products. For boosting foam in a bath bomb formula, a lower percentage, such as 5% (similar to the previous suggestion for AminoWash), can be a starting point, and you can adjust as needed.

Making Foam Last Longer: The inherent properties of the chosen surfactants play a significant role in foam stability. Selecting surfactants known for stable foam, like Cond-Foam™ Powder or IseFoam™, and combining different gentle surfactants can help improve the quality and longevity of the foam.

Important Consideration: Please remember that the primary components of bath bombs, Sodium Bicarbonate and Citric Acid, react to create the fizzing effect. These ingredients, especially in high concentrations, can potentially cause skin irritation, particularly for sensitive skin or children. It is important to be mindful of this when formulating products for young users.