Why are mitochondria at the heart of skin aging?
6 min. read
Mitochondria and Skin Aging: Why Cellular Energy Has Become a Major Issue in Skin Longevity
Skin aging is not solely a result of the passage of time. It primarily reflects the progressive decrease in cells' ability to produce, use, and protect their energy.
For a long time, the anti-aging approach focused on the visible manifestations of aging: wrinkles, loss of firmness, or altered radiance. Recent advances in cell biology now allow for a more fundamental approach: understanding the biological mechanisms that govern tissue longevity.
At the heart of this reflection are mitochondria. Present in each of our cells, they constitute the essential energy engine for the body's functioning. In the skin, their role is particularly crucial: they support cell renewal, tissue repair, collagen production, and the skin's ability to resist environmental aggressions.
Understanding the role of mitochondria thus allows us to approach skin aging from a new angle: that of cellular longevity.
What are mitochondria?
Mitochondria are cellular organelles whose primary function is to produce the energy necessary for cell function in the form of adenosine triphosphate (ATP). This energy fuels all biological mechanisms that allow tissues to maintain, renew, and repair themselves.
In the skin, energy needs are particularly significant. Keratinocytes ensure continuous epidermal renewal, while fibroblasts produce essential structural proteins such as collagen and elastin. These mechanisms require optimal mitochondrial function.
Beyond their energetic role, mitochondria are also involved in the regulation of oxidative stress, cell repair mechanisms, inflammation, and cell survival. They thus constitute a true control center for biological aging.
What is the link between mitochondria and skin aging?
With age, mitochondrial function progressively deteriorates. This mitochondrial dysfunction is now recognized as one of the main biological mechanisms involved in aging.
When energy production decreases, cells progressively lose their ability to effectively perform their biological functions. Cell renewal slows down, collagen synthesis decreases, and repair mechanisms become less efficient.
Concurrently, aging mitochondria produce more reactive oxygen species, more commonly known as free radicals. This accumulation of oxidative stress promotes cellular damage, accelerates tissue degradation, and contributes to the appearance of visible signs of aging.
These phenomena progressively lead to a loss of firmness, altered radiance, a decrease in skin quality, and the appearance of wrinkles.
Cellular senescence: when cells lose their ability to function
The alteration of mitochondrial functions directly contributes to a phenomenon now central to longevity research: cellular senescence.
A senescent cell is not a dead cell. It remains present in the tissue but progressively loses its ability to perform its essential biological functions. It produces less collagen, fewer repair factors, and contributes to maintaining an inflammatory environment likely to accelerate the aging of neighboring cells. The progressive accumulation of senescent cells is now considered one of the main drivers of skin aging.
This understanding opens a new path: rather than merely trying to correct the visible signs of time, it becomes possible to act upstream on the biological mechanisms that condition cell longevity.
How to support mitochondria and cellular energy?
Preserving skin longevity involves sustainably supporting cells' ability to produce energy, protect themselves from oxidative stress, and maintain their biological functions. Certain molecules are currently of particular interest due to their direct involvement in mitochondrial function. Coenzyme Q10 participates in the cellular energy production chain. Omega-3s contribute to maintaining the integrity of cell membranes. Collagen peptides support tissue structure and functionality.
Among these active ingredients, astaxanthin holds a unique place.

Astaxanthin: a key active ingredient for protecting mitochondria
Astaxanthin is a natural carotenoid extracted from the microalga Haematococcus pluvialis. It differs from other antioxidants in its exceptional ability to neutralize reactive oxygen species, responsible for a large part of the cellular damage related to aging.
Its oxygen radical absorbance capacity (ORAC) is considered one of the highest among natural antioxidants. Its antioxidant capacity is estimated to be between 100 and 500 times greater than that of vitamin E, while its free radical inhibiting activity is approximately ten times higher than that of other carotenoids.
Unlike many antioxidants, astaxanthin has a unique molecular structure that allows it to integrate within cell and mitochondrial membranes. This characteristic enables it to directly contribute to the protection of mitochondria against oxidative stress.
In the context of skin longevity, this action is particularly interesting. By limiting oxidative damage, astaxanthin helps preserve the cells' ability to produce energy, maintain their biological functions, and resist the effects of aging.
Coenzyme Q10: an essential player in cellular energy production
Naturally present in the body, coenzyme Q10, also known as ubiquinone, is an indispensable compound for mitochondrial function. It directly intervenes within the mitochondrial respiratory chain, the process by which cells produce adenosine triphosphate (ATP), their primary energy source. The concentration of coenzyme Q10 gradually decreases with age. This decrease is now associated with a reduction in cellular energy efficiency, an increase in oxidative stress, and an alteration of tissue repair mechanisms.
In the skin, coenzyme Q10 plays a dual role. On the one hand, it helps maintain the energy production necessary for cell renewal and the synthesis of structural proteins like collagen and elastin. On the other hand, it acts as an antioxidant by helping to protect cells from damage induced by free radicals. Several studies have thus highlighted the benefit of coenzyme Q10 in preserving skin quality, particularly regarding firmness, elasticity, and the appearance of wrinkles.
Because maintaining mitochondrial function is one of the foundations of skin longevity, we have integrated coenzyme Q10 into our Longevity Complex. Combined with microalgae-derived omega-3s, astaxanthin, phycocyanin, and marine collagen peptides, it helps sustainably support cellular energy production and the biological mechanisms involved in skin vitality.
The Longevity Ritual: a global approach to cellular vitality
At Alaena, we no longer talk about anti-aging but about skin longevity. This vision is based on a conviction: sustainably preserving skin quality involves simultaneously acting on several biological mechanisms involved in cellular aging. This approach guided the creation of the Longevity Ritual.
The Longevity Ritual combines micronutrition, anti-aging hydration, and UV protection to act on the main mechanisms of skin aging: oxidative stress, alteration of cellular functions, loss of elasticity, and UV-induced damage.
At the heart of this ritual, the Longevity Complex supports cellular biological functions involved in skin firmness, density, and radiance. After 90 days of supplementation, a clinical study demonstrated a 25% reduction in wrinkles, a 38% increase in skin density, a 10% increase in skin thickness, a 40% stimulation of elastin synthesis, and a 5% increase in hyaluronic acid synthesis.
This approach is complemented by the Anti-aging moisturizing cream, formulated around the {G}5® Complex, which helps preserve hydration, skin elasticity, and essential biological functions of the skin. Finally, the SPF50 tinted mineral care daily protects the skin from UV radiation and oxidative stress, two major factors in photo-aging and the alteration of cellular functions.
Towards a new vision of skin aging
Skin aging is not solely a result of the passage of time. It reflects the progressive evolution of biological mechanisms that allow cells to produce energy, repair themselves, and maintain their functions.
Mitochondria play a central role in this renewed understanding of aging. Preserving their function, protecting their integrity, and sustainably supporting their ability to produce energy is now one of the major challenges for skin longevity. A more demanding, more scientific, and more sustainable approach to beauty: one that aims to preserve the energy of life.
TO DISCOVER
Written by Dr. Sylvie Peres, dermatologist
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