Adding Tranexamic Acid to Vitamin C Serum

Yes, you can add Tranexamic Acid powder to your Vitamin C E Ferulic serum.

Based on the information for Tranexamic Acid (Trans-White™), it is stable and effective in formulas with a pH range of 3-8, which is suitable for your Vitamin C serum.

To achieve a 3% concentration of Tranexamic Acid in your final serum, you need to calculate the amount based on the total weight of your existing serum. The calculation is as follows:

For every 100 grams of the final serum mixture, you will need 3 grams of Tranexamic Acid powder.

If you have, for example, 50 grams of your existing Vitamin C serum, the total weight of the final mixture will be 50g (serum) + Xg (Tranexamic Acid). To make X equal to 3% of the final weight (50+X), the formula is:

X = (3 / 100) * (50 + X)
100X = 150 + 3X
97X = 150
X = 150 / 97 ≈ 1.55 grams

So, if you have 50 grams of serum, you would add approximately 1.55 grams of Tranexamic Acid powder.

A general formula to calculate the amount of Tranexamic Acid powder needed (in grams) for your existing serum is:

Amount of Tranexamic Acid (grams) = (3 * Weight of existing serum (grams)) / 97

How to Mix:

Add the calculated amount of Tranexamic Acid powder directly into your existing Vitamin C serum. Stir thoroughly until the powder is completely dissolved. Ensure there are no undissolved particles.

Storage:

Remember that Tranexamic Acid powder should be stored in the refrigerator (6-8°C) in a tightly closed container, protected from sunlight and heat, to maintain its quality long-term. The mixed serum should also be stored appropriately, likely following the storage recommendations for your original Vitamin C serum.

Always perform a patch test before applying the new mixture to your face.