You may feel a slight burning or stinging sensation when applying the products in the first two weeks.
It is a normal reaction and should not be a cause for alarm. The products are still balancing the pH level of your skin and penetrating its layers. It needs it to correct problematic areas to make it brighter, radiantly glowing, and more beautiful.
Also, at this stage, you are starting to exfoliate. The fresh, new skin layer is beginning to come out, and it is still super sensitive.
Don't worry—these reactions will subside/lessen once you enter Week 2-3 of your treatment. Applying your daily regimen in front of a fan or air conditioner will significantly help you tolerate the stinging sensation.
Lastly, make sure you are not applying too much Clarifying Lotion. Only apply it using one stroke and no repetition, since overdoing it will cause redness, itchiness and increase the stinging sensation.