What Is Phenol red?
Phenol red is a red dye that is odorless and comes in solid form. It can be used in cosmetics to help buffer the product. Additionally, it has been investigated for use clinically due to its ability to mimic estrogen weakly. It also serves as a pH indicator and diagnostic aid for determining renal function. Phenol red is also known as phenolsulfonphthalein.
What is the purpose of Phenol red in personal care products?
It is used for its buffering
characteristics.
Phenol red regulates the pH balance.
Names and identifiers that we found for this substance include: Phenol red, Phenolsulfonphthalein, "Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-", and 3,3-Bis(4-hydroxyphenyl)-2,1lambda~6~-benzoxathiole-1,1(3H)-dione.
What Are Buffering Ingredients?
Phenol red has buffering characteristics.
Buffering ingredients helps regulate and maintain the pH balance of cosmetic products. The pH scale is a method used to determine a mixture's acidity or alkalinity level. Our skin's natural pH balance helps it stay healthy and function properly. When cosmetic products are applied to the skin, they can alter the pH balance, potentially causing irritation or other adverse effects.
Buffering ingredients neutralize or adjust the pH of cosmetic products to match that of the skin, which helps minimize the risk of irritation or damage. By maintaining a consistent pH balance, buffering ingredients can also improve the stability and effectiveness of a product's active ingredients.
Types of Buffering Ingredients
Here are some of the most common types of buffering ingredients:
Alkalis: These have a high pH and are used to neutralize acids. They help maintain the product's pH within a desired range.
Acids: These have a low pH and are used to neutralize alkalis. They help maintain the cosmetic product's pH within a desired range.
Salts: These are formed when an acid and a base (alkali) are mixed. They help maintain the cosmetic product's stability by preventing changes in pH caused by external factors such as heat or exposure to air.
Safety
Remember, always read and follow the instructions provided on product labels carefully. If you have any questions or concerns about using a product containing various ingredients, consult with your doctor or healthcare provider before use.