PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29207818-3 2017 Topical Ascorbic Acid (AA) due to its effect as antioxidant and tyrosinase inhibitor helps to prevent PIH and maintains the response. Ascorbic Acid 8-21 tyrosinase Homo sapiens 64-74