Impact of Moisture Absorption on L-Carnitine Powder Measurement and Formulation Efficacy
คำถาม
I have L-Carnitine powder that has absorbed moisture and turned into a clear liquid. The staff confirmed it is still usable and does not cause irritation, and its efficacy is not affected by the moisture absorption itself.
However, my concern is about the accurate measurement for formulation. Since the powder has absorbed moisture and its weight has increased while the actual amount of L-Carnitine remains the same, if I use the same weight in a formula as I would for dry powder, the actual amount of L-Carnitine in the final product will be lower, potentially reducing its efficacy.
Could you explain how to accurately measure or adjust the amount of L-Carnitine that has absorbed moisture to ensure the correct concentration and expected efficacy in my formulation?
คำตอบ
Based on the staff's replies:
Yes, if the L-Carnitine has turned into a clear liquid without any color change, it is still usable. The staff confirmed that the efficacy and potential for irritation are not affected by the absorption of moisture.
However, the reason to still be concerned about moisture and proper storage is related to accurate measurement for formulation. L-Carnitine is hygroscopic, meaning it absorbs moisture easily. When it absorbs moisture and liquefies, its weight increases while the actual amount of L-Carnitine remains the same. If you measure the ingredient by weight for a formulation, using the liquefied product will result in a lower concentration of L-Carnitine in your final product compared to using the dry powder at the same weight. This can affect the intended performance of your formulation.
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