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Hand sanitizers contain certain chemicals ( ex- ethyl alcohol, triclosan
etc) which have a number of sideeffects. Most commonly dryness, itching , sensitivity of skin, allergies, suppression of thyroid
Sanitizer are usefull for washing hands , as we touch a million contaminated articles & surfaces in a day. Face does not need a sanitizer & facial skin is delicate then that of hands.
in your age is natural. And you may use products suitable of delicate skin of face, ONLY.