Calculating Active DMAE Concentration in Toner Formulation

Okay, I understand your confusion regarding the percentages. Let me explain based on the information provided from the product page and the staff's reply.

The key point is the difference between the concentration of the raw material you are adding to your formula and the concentration of the active ingredient within that raw material.

1. Understanding the Percentages:

   • When a formula is labeled "Toner DMAE 4%", the "4%" typically refers to the desired concentration of the Active DMAE in the final product. This means that in 100g of the finished toner, you want 4g of the pure, active DMAE molecule.
   • However, the ingredient you are using, "DMAE (SkinTight MD™) Liquid", is not 100% Active DMAE.

2. Concentration of the Raw Material:

   • The product description and staff reply state that "DMAE (SkinTight MD™) Liquid" contains 50% DMAE Bitartrate.
   • Crucially, the staff clarifies that this 50% DMAE Bitartrate is equivalent to 20% Active DMAE. This is the concentration of the actual DMAE molecule within the liquid raw material you are buying.

3. Calculating for the Formula:

   • To get 4% Active DMAE in your final product, you need to use an amount of the "DMAE (SkinTight MD™) Liquid" raw material such that the Active DMAE within that amount equals 4% of your total formula weight.
   • Since the "DMAE (SkinTight MD™) Liquid" is 20% Active DMAE, you can calculate the required amount:
     • Desired Active DMAE % in formula / Active DMAE % in raw material = % of raw material needed
     • 4% / 20% = 0.20
     • So, you need to use 20% of the "DMAE (SkinTight MD™) Liquid" raw material in your formula to achieve 4% Active DMAE in the final product.
   • Similarly, using 10% of the "DMAE (SkinTight MD™) Liquid" raw material gives you 10% * 20% = 2% Active DMAE in the final product.
   • The example formula showing 10-20% usage of "DMAE (SkinTight MD™) Liquid" corresponds to achieving 2-4% Active DMAE in the final toner, aligning with the typical recommended usage range for the active ingredient.

4. Other Ingredients:

   • Yes, you are correct. For any raw material ingredient that is not 100% the active compound you are interested in, you must always account for its actual concentration of the active ingredient when formulating. You need to know the percentage of the active component within the raw material to calculate how much of that raw material to add to your formula to reach the desired concentration of the active component in your final product.

In summary, the percentage in the formula name (e.g., Toner DMAE 4%) usually refers to the target concentration of the active ingredient (Active DMAE), while the percentage in the ingredient list refers to the amount of the raw material (DMAE (SkinTight MD™) Liquid) needed, taking into account that the raw material is only 20% Active DMAE.