{"id":55219,"date":"2025-12-03T17:01:47","date_gmt":"2025-12-03T16:01:47","guid":{"rendered":"https:\/\/www.beautydecoded.com\/ingredient\/4-hydroxyindole\/"},"modified":"2025-12-03T17:01:47","modified_gmt":"2025-12-03T16:01:47","slug":"4-hydroxyindole","status":"publish","type":"ingredient","link":"https:\/\/www.beautydecoded.com\/en\/ingredient\/4-hydroxyindole\/","title":{"rendered":"4-HYDROXYINDOLE"},"content":{"rendered":"<p><strong>Ingredient type:<\/strong>COLORANT<\/p>\n<p>\u2728 Role: 4-Hydroxyindole is mainly used in self-tanning and bronzing products as a coloring agent. This ingredient reacts with amino acids present in the skin's top layer, simulating a natural tan without sun exposure.<\/p>\n<p>  Ingredient type: Colorant<\/p>\n<p> \u200d\u2695\ufe0f Safety: Yes, this ingredient is generally considered safe when used at recommended concentrations in cosmetic products.<\/p>\n<p>\u2728 Vegan: Yes, 4-Hydroxyindole is a synthetic compound that does not come from animal sources.<\/p>\n<p>\u2728 Please note: Always perform a skin test before use to check for any adverse reactions. In the event of irritation, it's best to discontinue use.<\/p>\n<p>  Found in: Self-tanners, sunless tanning products and some hair dyes.<\/p>\n<p><strong>Comedogenic rating:\u00a0<\/strong><\/p>","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"class_list":["post-55219","ingredient","type-ingredient","status-publish","hentry"],"acf":[],"taxonomy_info":[],"featured_image_src_large":false,"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/ingredient\/55219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/ingredient"}],"about":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/types\/ingredient"}],"wp:attachment":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/media?parent=55219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}