Answer regarding Vitamin C + Beta Glucan Serum pH 2.3

Thank you for your question regarding the homemade Vitamin C + Beta Glucan serum with a pH of 2.3.

A pH level of 2.3 is too low for direct application to facial skin. Skincare products for the face typically have a pH range between 4.0 and 6.0, which is closer to the natural pH of healthy skin. Applying a product with a pH as low as 2.3 can cause significant skin irritation, redness, burning sensation, and potentially damage the skin's natural barrier.

Vitamin C in the form of Ascorbyl Glucoside (AA-2G) is acidic when dissolved in water. While AA-2G is stable, its optimal stability is in a pH range of 6.5-6.8. Beta Glucan is also typically used in formulations with a pH in the range of 5-7.

Using the serum at pH 2.3 is not recommended for safety reasons and may also affect the stability and effectiveness of the ingredients over time.

To make the serum safe for use, you would need to adjust the pH upwards using an alkaline agent (such as Triethanolamine or a dilute Sodium Hydroxide solution) until it reaches a skin-compatible range, ideally between 5.0 and 6.0. You would need a pH meter to accurately measure the pH during adjustment.

Therefore, please do not use the serum with the current pH of 2.3 on your face.