Preservatives for Bar Soap: Necessity and Recommended Type (Phenonip P4)
คำถาม
I am making a clear herbal bar soap for children's skin. I've heard that bar soap doesn't need a preservative. Is this true? I also observed white crystals forming on the soap. What could this be? I was considering using Phenoxyethanol as a preservative, but I see the staff recommended Phenonip P4 based on my purchase history. Could you please clarify the necessity of preservatives in bar soap, explain what the white crystals might be, and confirm if Phenonip P4 is a suitable alternative to Phenoxyethanol for this application?
คำตอบ
Preservatives for Clear Herbal Bar Soap
Regarding your question about adding a preservative to clear herbal bar soap for children's skin and your observation of white crystals:
Need for Preservatives: Contrary to some reviews, bar soap, especially one used for bathing and in contact with skin, absolutely requires a preservative. The contact with water and skin during use creates an environment where microorganisms can grow.
White Crystals: The white crystals you observed could indeed be mold or other microbial growth, which indicates the need for effective preservation.
Phenoxyethanol vs. Phenonip P4: While you considered Phenoxyethanol, the staff correctly pointed out that bar soap needs a preservative and suggested Phenonip P4. Phenonip P4 is a suitable preservative for bar soap and can be used as an alternative to Phenoxyethanol in this application. The staff noted that you have previously purchased Phenonip P4, confirming its availability and relevance to your needs.
Therefore, using Phenonip P4 is a recommended approach to effectively preserve your clear herbal bar soap and prevent microbial growth like the white crystals you observed.
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Phenoxyethanol (Extra Pure)
