Hi. You may be suffering from early onset androgenetic alopecia. Apart from genetic factors, environmental factors , pollution, stress, junk food and poor diet could cause you to lose hair further. You'll probably need treatment with hair care lotions or serums - something that has vasodilator properties and improves thickness of hair and reduces hair loss. Have a good balanced nutritious diet. Yes your hair density can be restored if you take timely treatment and care of your hair. For dandruff you'll need an antifungal shampoo. See a dermatologist near you. Hope this helps. Warm regards.
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