collagen
noun
col·la·gen ˈkä-lə-jən 
: any of a group of fibrous proteins that occur in vertebrates as the chief constituent of connective tissue fibrils and in bones and yield gelatin and glue upon boiling with water
collagenous
kə-ˈla-jə-nəs
adjective 
Example Sentences
Recent Examples on the Web Skin Benefits: With its healing properties in mind, this cream is meant to nourish and soothe stressed, sensitive skin while protecting against environmental stressors and stimulating collagen production. 
Kiana Murden, Vogue, 23 Aug. 2022 Deep Shot does the same thing from the palm of your hand with not only ultrasound energy but also high frequency to boost collagen production, Kim says. Devon Abelman, Allure, 18 Aug. 2022 When it is damaged, our body generates collagen protein to close the wound and protect us from infection. Dr. Michael Daignault, USA TODAY, 12 May 2022 Performed using a medical-grade, stainless steel roller covered with hundreds of tiny spikes, the tool creates a series of micro-injuries in an effort to rebuild the skin collagen production along with elasticity. Janell M. Hickman, SELF, 27 July 2022 One facial may start with the cleansing l'eau démaquillante (Dior's micellar water) and foamy la mousse, before moving on to the sculpting la crème texture essentielle, which stimulates collagen production. Rosa Sanchez, Harper's BAZAAR, 2 July 2022 Infused with collagen-stimulating retinol, Murad’s serum was the strongest in GH Beauty Lab testing at tightening slack skin around the eyes. Catharine Malzahn, Good Housekeeping, 25 May 2022 Microneedling is a process in which very small needles create miniature punctures in the skin to stimulate collagen production. Alfredo Mineo, Allure, 2 Aug. 2022 Vitamin C, which is a water soluble vitamin, is a key player in the formation of blood vessels, cartilage, muscle, and the skin-smoothing protein collagen. Audrey Bruno, SELF, 29 June 2022 See More
Kiana Murden, Vogue, 23 Aug. 2022 Deep Shot does the same thing from the palm of your hand with not only ultrasound energy but also high frequency to boost collagen production, Kim says. Devon Abelman, Allure, 18 Aug. 2022 When it is damaged, our body generates collagen protein to close the wound and protect us from infection. Dr. Michael Daignault, USA TODAY, 12 May 2022 Performed using a medical-grade, stainless steel roller covered with hundreds of tiny spikes, the tool creates a series of micro-injuries in an effort to rebuild the skin collagen production along with elasticity. Janell M. Hickman, SELF, 27 July 2022 One facial may start with the cleansing l'eau démaquillante (Dior's micellar water) and foamy la mousse, before moving on to the sculpting la crème texture essentielle, which stimulates collagen production. Rosa Sanchez, Harper's BAZAAR, 2 July 2022 Infused with collagen-stimulating retinol, Murad’s serum was the strongest in GH Beauty Lab testing at tightening slack skin around the eyes. Catharine Malzahn, Good Housekeeping, 25 May 2022 Microneedling is a process in which very small needles create miniature punctures in the skin to stimulate collagen production. Alfredo Mineo, Allure, 2 Aug. 2022 Vitamin C, which is a water soluble vitamin, is a key player in the formation of blood vessels, cartilage, muscle, and the skin-smoothing protein collagen. Audrey Bruno, SELF, 29 June 2022 See More Word History
Etymology
Greek kolla + International Scientific Vocabulary -gen
First Known Use
circa 1865, in the meaning defined above
Medical Definition
collagen
noun
col·la·gen ˈkäl-ə-jən
: an insoluble fibrous protein of vertebrates that is the chief constituent of the fibrils of connective tissue (as in skin and tendons) and of the organic substance of bones and yields gelatin and glue on prolonged heating with water