Using Vitamin C (L-Ascorbic Acid) for Body Skin and Facial Serum Review

Using Vitamin C (L-Ascorbic Acid) Mixed with Water or Lotion for Body

Regarding the staff's suggestion about mixing 15% L-ascorbic acid with water for use as a body toner, this can be done. However, the exact shelf life cannot be specified in terms of days as it depends on environmental factors such as light, temperature, and air exposure.

• Observing Degradation: Observe the color change. If the solution starts turning slightly yellow, it indicates that the Vitamin C is beginning to degrade. Its effectiveness will gradually decrease as the yellow color deepens. While you can still use it, its efficacy will not be the same as when freshly made.
• Mixing with Body Lotion: Mixing L-ascorbic acid powder directly into your body lotion is also possible. However, the instability property of L-ascorbic acid when dissolved in a water-based vehicle remains, similar to mixing with plain water. Therefore, if you mix it, it should also be used up relatively quickly.

Options for Stability for Long-Term Use

Since L-ascorbic acid is highly unstable when dissolved in water, which is a main component of lotion, if you wish to incorporate Vitamin C into a body lotion for long-term use over several weeks, the staff recommends considering more stable forms of Vitamin C, such as:

• Ascorbyl Glucoside (AA-2G): This is a highly stable form of Vitamin C that is water-soluble and is converted to L-ascorbic acid upon absorption into the skin. It is effective for long-term skin brightening and reducing dark spots.
• Formula Vitamin C E Ferulic: This formula uses L-ascorbic acid as the main component but is enhanced with Vitamin E and Ferulic Acid to help stabilize the L-ascorbic acid, making the formula more stable.

Choosing a stable form of Vitamin C will help the product you mix have a longer shelf life and maintain its effectiveness better than using L-ascorbic acid powder mixed directly into a water-based vehicle.

Facial Serum Results Review

Thank you for sharing the positive results of using your custom-mixed facial serum. We are glad to hear that you are very satisfied with the outcome after using it for almost a month. You noted that your face looks brighter, more lively, less tired, and appears healthier and bouncier.

The ingredients you listed in your facial serum formula are:

• Glucosamine (N-acetyl-D) 4%
• Alpha Arbutin 2%
• Licorice Root Extract (Licochalcone A) 1%
• Vitamin B3 (Niacinamide) 5%
• Matrixyl™ 3000 8%
• Apple Stem Cell Extract 5%
• Allantoin 0.2-0.5%
• Repair Activator 10%
• Zinc PCA 1%

These ingredients are a group of active substances with various properties, including Whitening (Glucosamine, Alpha Arbutin, Vitamin B3), Anti-Acne (Licorice Root Extract, Vitamin B3, Zinc PCA), Anti-Aging (Vitamin B3, Matrixyl™ 3000, Apple Stem Cell Extract, Repair Activator), and Anti-Irritant (Licorice Root Extract, Allantoin). Combining these ingredients at appropriate concentrations enhances their mutual effectiveness, leading to the good results you observed.