pH in Cream Formulations
คำถาม
What is the appropriate pH range for cosmetic formulations, particularly creams, applied to the skin? When formulating, how can I determine if I need to measure and adjust the pH of the final product using a digital pH meter?
คำตอบ
Subject: pH in Cream Formulations
Hello,
Regarding pH in cream formulations, the ideal pH range for skin is typically between 3.5 and 6.5.
To determine if your cream formulation needs pH adjustment, you should consider the pH of each ingredient you are using. Our product information usually includes the pH of the ingredients. If the pH is not specified, it is generally around 6-7.
The key factor is whether any of your ingredients have a pH that falls outside the 3.5-6.5 range.
- If any ingredient has a pH higher than 6.5 or lower than 3.5, it is necessary to measure the pH of your final formulation after mixing to ensure it is within the suitable range for the skin. You may then need to adjust the pH if it's outside this range.
- If all ingredients have a pH within the 3.5-6.5 range, it is generally not necessary to measure the pH of the final formulation, as the finished product's pH will likely also be within this range.
Measuring the pH when needed is important to ensure the safety and efficacy of your cream.
Thank you.
ผลิตภัณฑ์ที่เกี่ยวข้องที่กล่าวถึง
