{"id":1867,"date":"2022-03-28T19:49:13","date_gmt":"2022-03-28T19:49:13","guid":{"rendered":"https:\/\/radiesse.m3rzd3v.com\/?page_id=1867"},"modified":"2026-03-10T14:26:17","modified_gmt":"2026-03-10T18:26:17","slug":"mechanism-of-action","status":"publish","type":"page","link":"https:\/\/merzaesthetics-ca.m3rzd3v.com\/fr\/radiesse\/hcp\/mechanism-of-action\/","title":{"rendered":"M\u00e9canisme d&#039;action"},"content":{"rendered":"\n<div id=\"moa-first-content\" class=\"wp-block-group container\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column col-12 col-lg-6 is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"gb-text\">Mechanism of Action<\/h2>\n\n\n\n<p>RADIESSE<sup>\u00ae<\/sup> is an injectable implant composed of smooth calcium hydroxylapatite (CaHA) microspheres (diameter of 25 \u00b5m to 45 \u00b5m) suspended in a sodium carboxymethylcellulose gel carrier.<sup>1<\/sup> RADIESSE<sup>\u00ae<\/sup> is approximately 30% CaHA and 70% gel carrier by volume.<sup>2<\/sup><\/p>\n\n\n\n<p>RADIESSE<sup>\u00ae<\/sup> is injected under the skin in a minimally invasive procedure. Injection of the product provides an immediate and visible correction to the wrinkle. <sup>1<\/sup><\/p>\n\n\n\n<p>Over time, the gel is absorbed, and fibroblasts appear.<sup>3,4<\/sup> The process of neocollagenesis begins, stimulating the gradual growth of the patient\u2019s own collagen.<sup>4,6,9,10<\/sup>&nbsp;The collagen that forms results in extended correction and increased patient satisfaction. Radiesse builds structural scaffolding by stimulating collagen production for up to 2 years.<sup>3,5,6<\/sup><\/p>\n\n\n\n<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"604\" height=\"146\" class=\"gb-media-8d4d6291\" alt=\"Histology slides demonstrate deposition of new collagen around CaHA microspheres over an extended period of time. Collagen fibers stain red, while other tissue elements appear more yellow. RADIESSE\u00ae stimulates collagen III, which is gradually replaced by collagen I. This creates a stable organized ration of collagen I and II with structure and support, compared to collagen type I stimulation alone.&lt;sup&gt;4-6&lt;\/sup&gt;\" title=\"histology-radiesse-chart\" src=\"https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2026\/02\/histology-radiesse-chart.jpg?resize=604%2C146&#038;ssl=1\" srcset=\"https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2026\/02\/histology-radiesse-chart.jpg?w=604&amp;ssl=1 604w, https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2026\/02\/histology-radiesse-chart.jpg?resize=300%2C73&amp;ssl=1 300w, https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2026\/02\/histology-radiesse-chart.jpg?resize=18%2C4&amp;ssl=1 18w\" sizes=\"auto, (max-width: 604px) 100vw, 604px\" \/>\n\n\n\n<figcaption class=\"wp-element-caption\" style=\"text-align:left;\">Kyle M C, Robert V, Dale Paul D et al. Neocollagenesis after injection of calcium hydroxylapatite composition in a canine model. Dermatologic Surgery\u202f: Official Publication for American Society for Dermatologic Surgery [et Al] 2008;34 Suppl 1. https:\/\/doi.org\/10.1111\/j.1524-4725.2008.34243.<\/figcaption>\n\n\n\n<p>RADIESSE<sup>\u00ae<\/sup> stimulates collagen III, which is gradually replaced by collagen I. This creates a stable organized ration of collagen I and II with structure and support, compared to collagen type I stimulation alone.<sup>3-5,9,10<\/sup><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Collagen III stabilizes and organizes collagen I, ensuring its alignment and thickness<sup>8<\/sup><\/li>\n\n\n\n<li>By stimulating both, RADIESSE<sup>\u00ae<\/sup> results in healthy-looking skin<sup>3,5<\/sup><\/li>\n<\/ul>\n\n\n\n<div class=\"gb-element-c00691ce bs-Z1a5GqI\">\n<div class=\"gb-element-a21d544b\">\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-360ac756\">\n<p class=\"gb-text gb-text-dc9a7b60\"><strong>Collagen I<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-ddcdf466\">\n<p class=\"gb-text gb-text-237ac2e2\"><strong>Collagen III<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-b3a77d68\">\n<p class=\"gb-text gb-text-2598c674\"><strong>Elastin<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-17df39dc\">\n<p class=\"gb-text gb-text-5fc862b1\"><strong>Proteoglycans<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-545b5378\">\n<p class=\"gb-text gb-text-a4482847\"><strong>Angiogenesis<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-17db44c4\">\n<span class=\"gb-text gb-text-82ff851d\">Key Benefits<\/span>\n<\/div>\n\n\n\n<div class=\"gb-element-06944ce3\">\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-12f8e97d\">\n<p class=\"gb-text gb-text-0ff66aed\">Support<\/p>\n\n\n\n<p>Provide the skin with strength and resilience<sup>4,6,9,10<\/sup><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-e274f427\">\n<p class=\"gb-text gb-text-f39d6629\">Structure<\/p>\n\n\n\n<p>Deliver structure that simulates remodeling of the extracellular matrix (ECM)<sup>4,6,9,10<\/sup><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-b5a4b89f\">\n<p class=\"gb-text gb-text-0b312c9d\">Elasticity<\/p>\n\n\n\n<p>Recover the elasticity and firmness of the skin<sup>4,9-11<\/sup><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-9f45443a\">\n<p class=\"gb-text gb-text-8451b5d6\">Glow<\/p>\n\n\n\n<p>Provide hydration and glow<sup>11<\/sup><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"gb-element-8c3d081d\">\n<p class=\"gb-text gb-text-df21ea49\">NOURISH<\/p>\n\n\n\n<p>Provide long-term sustainability to new tissue<sup>4,10<\/sup><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div id=\"moa-second-content\" class=\"wp-block-group container\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column col-12 col-lg-6 is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"gb-text\">Biostimulatory effect of RADIESSE<sup>\u00ae<\/sup> revitalizes the following extracellular matrix (ECM) components:<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"615\" src=\"https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2025\/12\/image-1024x615-1.jpg?resize=1024%2C615&#038;ssl=1\" alt=\"\" class=\"wp-image-38919\" srcset=\"https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2025\/12\/image-1024x615-1.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2025\/12\/image-1024x615-1.jpg?resize=300%2C180&amp;ssl=1 300w, https:\/\/i0.wp.com\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2025\/12\/image-1024x615-1.jpg?resize=768%2C461&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p>The results are immediate, natural, and subtle. The correction is long-lasting but not permanent. Over time, the CaHA microspheres break down and are metabolized by the body\u2019s normal processes.<sup>3,7,13<\/sup><\/p>\n\n\n\n<p>It is important to remember not to overcorrect (overfill) a contour deficiency with RADIESSE<sup>\u00ae<\/sup> because the depression should gradually improve within several weeks as the treatment effect of RADIESSE<sup>\u00ae<\/sup> occurs.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div id=\"moa-third-content\" class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns col-12 col-lg-11 mx-auto mb-0 pt-5 px-3 px-md-0 is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\" style=\"color:#fff;\">How It Works<\/h2>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns col-12 col-lg-11 mx-auto pb-5 px-0 is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column row flex-column flex-lg-row align-items-center align-items-md-start is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-video\"><video height=\"720\" style=\"aspect-ratio: 1280 \/ 720;\" width=\"1280\" controls src=\"https:\/\/merzaesthetics-ca.m3rzd3v.com\/app\/uploads\/2025\/10\/radiesse-how-it-works-en-1.mp4\" playsinline><\/video><\/figure>\n\n\n\n<figure class=\"wp-block-video d-none w-75\"><video height=\"360\" style=\"aspect-ratio: 640 \/ 360;\" width=\"640\" controls poster=\"\/app\/uploads\/2022\/03\/moa-physician.jpg\" src=\"\/app\/uploads\/2022\/03\/moa-physician.mp4\"><\/video><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group endcap container-child\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns row align-items-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column col-8 col-md-4 col-lg-5 is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Become a provider<\/h4>\n<\/div>\n\n\n\n<div class=\"wp-block-column col-8 col-md-6 col-lg-5 is-layout-flow wp-block-column-is-layout-flow\">\n<p>Contact us if you would like more information about becoming a RADIESSE<strong><sup>\u00ae<\/sup><\/strong> provider.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column col-3 col-md-1 is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-vertical is-layout-flex wp-container-core-buttons-is-layout-8cf370e7 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-circle-arrow\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/radiesse\/hcp\/become-a-radiesse-provider\/\">No<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<script type=\"application\/ld+json\"> \n[\n{ \"@type\": \"MedicalWebPage\",\n   \"name\": \"Mechanism of Action\",\n   \"about\": \"Radiesse is injected under the skin in a minimally invasive procedure. Injection of the product provides an immediate and visible correction to the wrinkle. There is no skin sensitivity testing or reconstitution required. Over time, the gel is absorbed, and fibroblasts appear.2,3 The process of neocollagenesis begins, stimulating the gradual growth of the patient\u2019s own collagen. The collagen that forms results in extended correction and increased patient satisfaction. Radiesse builds structural scaffolding by stimulating collagen production for a year or longer\",\n   \"medicalAudience\":\"https:\/\/schema.org\/hcp\",\n   \"url\":\"\/professionals\/mechanism-of-action\/\"},\n\n{\"@type\": \"Physician\",\n \"name\": \"healthcare professional\"},\n \n{ \"@type\": \"Drug\",\n   \"isProprietary\":\"True\",\n   \"manufacturer\":\"Merz Pharmacuetical\",\n   \"name\":\"Radiesse\",\n   \"nonProprietaryName\":\"Calcium hydroxylapatite\",\n   \"prescriptionStatus\":\"https:\/\/schema.org\/PrescriptionOnly\"},\n\n{ \"@type\": \"MedicalWebPage\",\n  \"about\":\"Radiesse stimulates collagen III, which is gradually replaced by collagen I. This creates a stable organized ration of collagen I and II with structure and support, compared to collagen type I stimulation alone. Collagen III stabilizes and organizes collagen I, ensuring its alignment and thickness. 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Injection of the product [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"custom-page-category":[],"class_list":["post-1867","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<title>Radiesse | Mechanism of Action - Merz Aesthetics Canada<\/title>\n<meta name=\"description\" content=\"Learn how Radiesse works to stimulate collagen and provide immediate, natural, and subtle cosmetic results. 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