the desired pH level for optimal ink stability.How often should I use a non-abrasive cleanser?
What are some common laboratory techniques for testing ink stability?It is generally recommended to use a non-abrasive cleanser twice daily—morning and night—as part of your skincare routine. However, if your skin feels overly sensitive, you may adjust the frequency according to your skin's needs.
Common techniques include accelerated aging tests, viscosity measurements, and colorimetric analysis to evaluate how changes in pH impact the ink's performance over time.Are non-abrasive cleansers more expensive than traditional cleansers?