{"id":74442,"date":"2026-05-18T17:32:07","date_gmt":"2026-05-18T15:32:07","guid":{"rendered":"https:\/\/www.beautydecoded.com\/?p=74442"},"modified":"2026-05-18T17:32:10","modified_gmt":"2026-05-18T15:32:10","slug":"urolithin-a-and-skin-longevity-deciphering-a-new-ingredient","status":"publish","type":"post","link":"https:\/\/www.beautydecoded.com\/en\/urolithin-a-and-skin-longevity-deciphering-a-new-ingredient\/","title":{"rendered":"Urolithin A and skin longevity: deciphering a new ingredient"},"content":{"rendered":"

For thirty years, the skincare market sold a simple promise: to erase wrinkles. Biological research, on the other hand, was about something else. It spoke of cell senescence<\/strong>of mitochondrial oxidative stress<\/strong>of glycation of support proteins<\/strong>. These are deep, measurable mechanisms on which a conventional \u00abanti-ageing\u00bb cream had, to tell the truth, only a very limited impact.<\/p>\n\n\n\n

In recent years, a term has emerged to designate a more rigorous approach: the skin longevity<\/strong>. It's not a new word for \u00abanti-aging\u00bb. It's a different question. Instead of asking \u00abhow to mask the signs of the times?\u00bb<\/em>, we ask \u00abhow to preserve the cellular functioning that keeps skin healthy?\u00bb<\/em>.<\/p>\n\n\n\n

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Mitochondrion is a double membrane-bound organelle found in all eukaryotic organisms. 3D illustration<\/figcaption><\/figure>\n\n\n\n

Cellular biology and skin aging<\/h2>\n\n\n\n

Skin ages according to several documented mechanisms, which act in parallel.<\/p>\n\n\n\n

Cellular senescence<\/strong> refers to the accumulation, with age, of cells that no longer divide but don't die either. These cells secrete an inflammatory cocktail (known as SASP, senescence-associated secretory phenotype<\/em>) which degrades the surrounding tissue.<\/p>\n\n\n\n

Oxidative stress<\/strong> corresponds to an imbalance between the production of reactive oxygen species - normal by-products of cellular metabolism, amplified by UV exposure, pollution and smoking - and our cells' ability to neutralize them. Proteins, membrane lipids and DNA are damaged.<\/p>\n\n\n\n

Glycation<\/strong> is the aberrant binding of sugars to structural proteins such as collagen and elastin, which become rigid and lose their function.<\/p>\n\n\n\n

And at the heart of all this damage is an organelle: the mitochondria<\/strong>. The cell's energy powerhouse, the first to produce oxidizing by-products, the first to malfunction as the cell ages.<\/p>\n\n\n\n

Mitophagy: the self-cleaning of mitochondria<\/h2>\n\n\n\n

This is where a fascinating and long-underestimated cellular mechanism comes into play: the mitophagy<\/strong>.<\/p>\n\n\n\n

The term refers to the process by which the cell identifies its defective mitochondria and recycles them. A sort of selective intracellular sorting. When mitophagy works, dysfunctional mitochondria are eliminated before saturating the cell with oxidative stress. When it slows down - as happens with age - waste accumulates, cellular energy drops, and tissue ages more rapidly.<\/p>\n\n\n\n

The discovery of the mechanisms of autophagy (the family of processes to which mitophagy belongs) earned Yoshinori Ohsumi the Nobel Prize in Medicine in 2016<\/strong>. So it's not a marketing concept. It's fundamental biology, on which numerous teams have been working ever since to identify molecules capable of stimulating it.<\/p>\n\n\n\n

Urolithin A: an interesting postbiotic<\/h2>\n\n\n\n

Among the molecules studied in this context, urolithin A<\/strong> has built up a solid scientific track record.<\/p>\n\n\n\n

It is not a nutrient found directly in food. It is a postbiotic<\/strong> a compound produced by the intestinal microbiota from ellagitannins - polyphenols found in pomegranates, certain nuts and raspberries. But not everyone produces it in the same quantities: part of the population lacks the bacterial profile needed to synthesize it efficiently.<\/p>\n\n\n\n

Research on urolithin A has focused on its ability to stimulate mitophagy<\/strong>. Several clinical trials published in journals such as Nature Metabolism<\/em> or Cell Reports Medicine<\/em> have shown, with oral supplementation, measurable effects on mitochondrial muscle function in aging adults. This is an area of active research, with real data - not an ingredient invented for a sales pitch.<\/p>\n\n\n\n

Logically, laboratories were wondering: what about cutaneous application?<\/p>\n\n\n\n

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The arrival of urolithin A in cosmetics<\/h2>\n\n\n\n

The transition from oral supplementation to topical skincare raises different issues. A molecule that is effective orally is not automatically effective cutaneously - the skin is a barrier designed not to let much through, and the penetration of an active ingredient depends on its size, polarity and formulation.<\/p>\n\n\n\n

On this point, let's be clear: cosmetic application of urolithin A does not reproduce the systemic effects of a dietary supplement<\/strong>. In fact, the brand that markets these products explicitly states this in its own product information. We're talking here about a topical, local action on skin cells - not an intervention on global metabolism.<\/p>\n\n\n\n

It is in this context that Lanc\u00f4me skin longevity range<\/a><\/strong> has been developed in partnership with Swiss biotech Timeline (which markets the world's most widely distributed oral urolithin A supplement). Called Absolue Longevity MD, the collection offers three protocols segmented by the skin's apparent biological age:<\/p>\n\n\n\n