{"id":29782,"date":"2026-05-23T08:14:35","date_gmt":"2026-05-23T08:14:35","guid":{"rendered":"https:\/\/hunthow.com\/?p=29782"},"modified":"2026-05-23T08:14:35","modified_gmt":"2026-05-23T08:14:35","slug":"collagen-or-biotin-for-hair-growth-which-is-better","status":"publish","type":"post","link":"https:\/\/hunthow.com\/?p=29782","title":{"rendered":"Collagen or Biotin for Hair Growth: Which Is Better?"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<p>If <a href=\"https:\/\/www.vogue.com\/article\/how-to-grow-your-hair-out-trims-deep-conditioning-diet-supplements-long-hair\" target=\"_blank\" class=\"text link\">hair growth<\/a> is a top concern for you, then you have probably considered taking either a <a href=\"https:\/\/www.vogue.com\/article\/collagen-supplements-here-are-all-the-benefits\" target=\"_blank\" class=\"text link\">collagen<\/a> or a <a href=\"https:\/\/www.vogue.com\/article\/biotin-hair-loss\" target=\"_blank\" class=\"text link\">biotin<\/a> supplement (or both!). These ingredients are <em>everywhere<\/em>, and it\u2019s nearly impossible to scroll through any social feed without seeing personal anecdotes from people who swear by their supposed hair-growing abilities.<\/p>\n<p>But with so much conflicting information out there, it can be hard to figure out which supplement would actually work best (if at all) for you and your hair needs. So, to settle the debate between collagen and biotin, we turned to the experts. See what they had to say below.<\/p>\n<h2>How collagen works for hair growth<\/h2>\n<p>Collagen plays a vital role in many parts of the body, including healthy hair growth. As <a data-offer-url=\"https:\/\/rabachaesthetics.com\/dr-morgan-rabach\/\" class=\"external-link text link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/rabachaesthetics.com\/dr-morgan-rabach\/&quot;}\" href=\"https:\/\/rabachaesthetics.com\/dr-morgan-rabach\/\" rel=\"nofollow noopener\" target=\"_blank\">Morgan Rabach<\/a>, MD, board-certified dermatologist at <a data-offer-url=\"https:\/\/rabachaesthetics.com\/about-us\/\" class=\"external-link text link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/rabachaesthetics.com\/about-us\/&quot;}\" href=\"https:\/\/rabachaesthetics.com\/about-us\/\" rel=\"nofollow noopener\" target=\"_blank\">Rabach Aesthetics<\/a>, explains it, when our dermal collagen is healthy, hair follicles are better anchored in our scalp to grow. As we get older, our collagen levels decline, and our skin gets thinner. Dr. Rabach says this can then cause circulation to slow down, and hair becomes more prone to breakage and damage.<\/p>\n<p>So, where do <a href=\"https:\/\/www.vogue.com\/article\/collagen-supplements-here-are-all-the-benefits\" target=\"_blank\" class=\"text link\">collagen supplements<\/a> come into this? It\u2019s believed they can support hair thickness through the skin-related benefits. New York City\u2013based dermatologist <a data-offer-url=\"https:\/\/www.drhadleyking.com\/\" class=\"external-link text link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/www.drhadleyking.com\/&quot;}\" href=\"https:\/\/www.drhadleyking.com\/\" rel=\"nofollow noopener\" target=\"_blank\">Hadley King<\/a>, MD, explains that studies show collagen supplements, which are made of collagen peptides that are easier to absorb, and <a href=\"https:\/\/www.vogue.com\/article\/products-to-slow-collagen-loss\" target=\"_blank\" class=\"text link\">topical products<\/a> are most proven to improve hydration and strengthen the skin barrier. Because collagen may help support scalp health, it is possible that it might also result in healthy hair growth, but Dr. King says evidence for this is <a href=\"https:\/\/www.researchgate.net\/publication\/281683119_The_Safety_and_Efficacy_of_a_Sustainable_Marine_Extract_for_the_Treatment_of_Thinning_Hair_A_Summary_of_New_Clinical_Research_and_Results_from_a_Panel_Discussion_on_the_Problem_of_Thinning_Hair_and_Cu\" target=\"_blank\" class=\"text link\">still limited<\/a>: \u201cThe jury is still out.\u201d<\/p>\n<p>Those who have fish, shellfish, egg, or beef allergies should use caution when taking collagen supplements, as they are sometimes made from animal-derived ingredients. She also says that those with kidney disease, conditions that require protein restriction, or who are pregnant or breastfeeding should first consult with their health care provider to be extra safe. Other downsides can include mild bloating, an upset stomach, or an off-putting taste. 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id=\"69de96f850f01b8d176afbc1\" type=\"embed\" class=\"UnifiedProductCardWrapper-eMpakX jQoQXa\">\n<div class=\"UnifiedProductCardBody-MMgYX dULYAp\">\n<p class=\"BaseText-fEwdHD UnifiedProductCardBrandName-jTSGxk ecdztG XAQmG upc-brandName\">Vital Proteins<\/p>\n<p><h3 id=\"upc_69de96f850f01b8d176afbc1\" type=\"embed\" class=\"BaseText-fEwdHD UnifiedProductCardName-jkGINH ecFqk elLPEQ\">Marine Collagen Peptides<\/h3>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.vogue.com\/article\/biotin-versus-collagen-for-hair-growth\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>If hair growth is a top concern for you, then you have probably considered taking either a collagen or a biotin supplement (or both!). These ingredients are everywhere, and it\u2019s nearly impossible to scroll through any social feed without seeing&#8230;<\/p>\n","protected":false},"author":1,"featured_media":29783,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[125],"tags":[],"class_list":["post-29782","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fashion"],"_links":{"self":[{"href":"https:\/\/hunthow.com\/index.php?rest_route=\/wp\/v2\/posts\/29782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hunthow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hunthow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hunthow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hunthow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=29782"}],"version-history":[{"count":0,"href":"https:\/\/hunthow.com\/index.php?rest_route=\/wp\/v2\/posts\/29782\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hunthow.com\/index.php?rest_route=\/wp\/v2\/media\/29783"}],"wp:attachment":[{"href":"https:\/\/hunthow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hunthow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hunthow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}