I'm used baking soda for more than a month. But not just baking soda alone I mixed it with pure honey and the white of egg mix them together and using it as my face mask everyday before taken a bath. Apply nicely rub so gently on my face circular motion until I'm feel it's tighten and leave on my face up to 30 minutes. Rinse with warm water then cold after to close the poreses..,, My skin look radiant rosy smooth and it's tighten. I love it! My family and friends they noticed the changes Of skin on my face. So easy and no need to go to any derm clinic. It's so natural way, very helpful.