{"id":45352,"date":"2024-02-09T08:16:27","date_gmt":"2024-02-09T07:16:27","guid":{"rendered":"https:\/\/drromanovaleria.ch\/?p=45352"},"modified":"2026-06-09T15:49:31","modified_gmt":"2026-06-09T13:49:31","slug":"skin-wrinkle-appearance-skin-microbiome","status":"publish","type":"post","link":"https:\/\/drromanovaleria.ch\/en\/blog\/peau-apparition-rides-microbiote-cutane\/","title":{"rendered":"Peau : apparition des rides et microbiote cutan\u00e9"},"content":{"rendered":"

SKIN : APPEARANCE OF WRINKLES AND SKIN MICROBIOME<\/h1>\n

The skin microbiome and wrinkle formation<\/h2>\n

Human skin is more than a protective barrier between the body and the outside world. It is a living ecosystem populated by billions of microorganisms constantly coexisting with our cells. This community, called the skin microbiome, plays an essential role in skin health and ageing. Recent research shows that imbalances in the skin microbiome can contribute to wrinkle formation, changing our understanding of skin ageing.<\/p>\n

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The skin microbiome<\/h2>\n

The skin surface is colonised by a multitude of bacteria, fungi, viruses and even microscopic mites. Together, they form the skin microbiome, comparable to an organised community where each species has a particular function.
The skin microbiome is not uniform: its composition varies between body areas. Facial skin, the scalp and hands host different populations adapted to local characteristics such as moisture, sebaceous gland density or sun exposure. This microbiome also changes throughout life, influenced by age, diet, environment and skincare habits.<\/p>\n

The microbiome's protective functions<\/h2>\n

The skin microbiome actively protects the skin. Some bacteria secrete substances that limit pathogenic microorganism proliferation. Others help balance skin pH, essential for maintaining a functional skin barrier.
By interacting with the immune system, the microbiome helps skin recognise external threats and avoid excessive inflammation. It therefore helps preserve skin tissue integrity and limit oxidative damage that accelerates ageing.<\/p>\n

Skin ageing and microbial imbalance<\/h2>\n

With ageing, the skin microbiome becomes less diverse. Some beneficial species decrease while others, potentially pro-inflammatory, develop. This imbalance, called dysbiosis, weakens the skin ecosystem.
Dysbiosis promotes chronic low-grade inflammation known as inflammaging. Already studied in other organs, this process also affects the skin. It contributes to the gradual breakdown of collagen and elastin, proteins essential for skin firmness and suppleness. Skin loses density and wrinkles develop faster.<\/p>\n

Mechanisms linking the microbiome and wrinkles<\/h2>\n

The link between the skin microbiome and ageing is complex: several biological mechanisms explain how microbiome imbalance can weaken skin and accelerate wrinkle formation.<\/p>\n