{"id":35296,"date":"2025-12-03T12:30:19","date_gmt":"2025-12-03T11:30:19","guid":{"rendered":"https:\/\/www.beautydecoded.com\/ingredient\/tetrapeptide-21\/"},"modified":"2025-12-03T12:30:19","modified_gmt":"2025-12-03T11:30:19","slug":"tetrapeptide-21","status":"publish","type":"ingredient","link":"https:\/\/www.beautydecoded.com\/en\/ingredient\/tetrapeptide-21\/","title":{"rendered":"TETRAPEPTIDE-21"},"content":{"rendered":"<p><strong>Ingredient type: \u00a0<\/strong>ASSETS<\/p>\n<p>Peptide<\/p>\n<p>\u2728 Role: Tetrapeptide-21 is used to stimulate collagen and elastin production, helping to improve skin firmness and reduce the appearance of fine lines and wrinkles. It also promotes skin regeneration, making it smoother and more even.<\/p>\n<p>  Ingredient type: Water-soluble<\/p>\n<p> Safety: Yes, this ingredient is generally safe for skin use.<\/p>\n<p>\u2728 Vegan: Yes, this ingredient is synthetic and therefore suitable for vegan formulas.<\/p>\n<p>\u2728 Note: Tetrapeptide-21 is generally well tolerated and suitable for most skin types. However, it is always recommended to perform a tolerance test on a small area of skin to avoid any potential allergic reactions.<\/p>\n<p>  Found in: Anti-aging creams, firming serums, eye contour treatments, and products designed to improve skin firmness.<\/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-35296","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\/35296","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=35296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}