Mitochondria are known as the cell’s energy factories. They possess their own genetic material — mitochondrial DNA (mtDNA) —which is distinct from the cell’s nuclear DNA and researchers at EPFL (École Polytechnique Fédérale de Lausanne) [1], in Switzerland, have recently shown that the transmission of mtDNA during cell division relies on a simple yet highly orchestrated change in mitochondrial shape. Dubbed mitochondrial pearling for its resemblance to a string of pearls, this transient phenomenon enables cells to distribute mtDNA with remarkable precision.
During this process, the mitochondrion temporarily adopts a beaded morphology, forming a series of regularly spaced "pearls," each enclosing a segment of mtDNA. The frequency and duration of this pearling are regulated by the organelle’s inner membrane, whose mechanical properties are essential for the process to occur. The findings highlight that cellular function depends not only on biochemical signals but also on finely tuned physical mechanisms. [2]
This raises the question of what initiates this transformation. The researchers found that calcium — an ion involved in countless cellular processes — acts as the trigger. As calcium enters the mitochondrion, it induces pearling events that can occur several times per minute, while the architecture of the inner membrane preserves the orderly distribution of mtDNA throughout the process.
Mitochondria are thus able to self-regulate the distribution of their genetic material. When this mechanism fails, the orderly formation of mitochondrial beads is disrupted, resulting in the accumulation of aggregates. Such mitochondrial dysfunctions are implicated in a variety of metabolic, neurological, and neurodegenerative disorders, including Alzheimer’s and Parkinson’s diseases.
Mitochondrial health: a key driver of healthy aging
Healthy mitochondria are essential for maintaining vitality over time, supporting balanced metabolism and stable cellular energy production. However, this delicate equilibrium can be disrupted by multiple external and internal factors, including pollution, pesticides, heavy metals, and nutritional deficiencies. When mitochondria become impaired, they generate excessive amounts of reactive oxygen species (ROS), triggering oxidative stress. This process accelerates cellular aging by damaging critical cellular structures, including telomeres — the protective regions at the ends of chromosomes that are widely recognized as markers of biological aging.
Mitochondrial dysfunction is increasingly considered a potential driver of the aging process, as it contributes to cellular damage and DNA degradation. Protecting mitochondrial function may therefore represent a promising pathway for promoting longevity, while a deeper understanding of mitochondrial mechanisms is opening new avenues for targeted interventions.
Targeted active ingredients: new avenues for longevity-focused skincare
Solabia was among the first cosmetic active ingredient suppliers to explore the role of mitochondria in skin aging, filing a patent in 2012 for Viniderm, an ingredient targeting mitochondrial DNA. In 2025, the company introduced a more comprehensive approach with the launch of Pro-Longevia. Derived from organic raspberry leaves, this active ingredient is produced by co-extraction under subcritical conditions.
“To maximize molecular richness while preserving phytochemical integrity, subcritical co-extraction enables the full potential of raspberry leaf ellagitannins to be harnessed — a promising bio-inspired source recognized for its involvement in key longevity pathways. Pro-Longevia provides a holistic, scientifically supported approach to skin aging by targeting the full spectrum of the ‘hallmarks of aging,’ delivering visible and long-lasting improvements in skin quality,” explains Oriane Le Roux, Marketing Product Manager at Solabia. “Mitochondria are a particularly relevant target in the context of longevity, as their proper functioning is essential for energy production, stress resilience, and cellular regeneration. Pro-Longevia helps preserve mitochondrial network organization — an indicator of healthy cellular function — thereby supporting bioenergetic efficiency, ATP production, and skin cell vitality. By strengthening cellular resilience, particularly against environmental stressors, it contributes to maintaining skin health over time. When addressing longevity, the mitochondrion emerges as a key biological target.”
Preserving mitochondrial balance and optimal function are becoming key objectives for laboratories exploring the mechanisms of aging. At Silab, the natural active ingredient Algophagyl acts on three complementary defense pathways: mitochondrial quality control, mitochondrial dynamics, and mitophagy, thereby supporting epidermal regeneration.
The much-publicized integration of MitoPure by Lancôme, as part of its collaboration with Swiss longevity pioneer Timeline, has brought mitochondrial health back into the spotlight and reignited interest in cellular youth research. MitoPure is a highly purified form of Urolithin A, a postbiotic compound recognized for its ability to "re-energize" mitochondria by supporting their renewal processes. Although Urolithin A is not a new discovery — it has been used in numerous food supplements targeting cellular aging since the 2000s — the molecule is experiencing a new wave of interest as longevity becomes a growing focus for the beauty industry.
In the field of longevity research, mitochondrial health is emerging as a major focus for prevention strategies. The French company [Nutrisolution->https://www.nutrisolution.fr/ has made this area its core expertise. Recently, it launched MitoBoost - Performance & Anti-Âge Mitochondrial, a food supplement combining pyrroloquinoline quinone (PQQ) with key mitochondrial cofactors—including CoQ10, alpha-lipoic acid (R-ALA), NADH, and astaxanthin—alongside L-carnosine. The formulation is designed to act at the heart of mitochondrial function by supporting mitochondrial renewal, optimizing ATP production, and helping protect cells against oxidative stress. For Dr. Pierre Maldiney, co-founder of the brand, “putting mitochondria back at the center of clinical approaches means addressing still poorly understood areas such as chronic fatigue, recovery, and oxidative stress.” He emphasizes that this approach should be viewed as complementary, “never as opposed to conventional medicine.”
The growing focus on mitochondria could therefore pave the way for new targeting pathways in the field of aging. The discovery of mitochondrial pearling adds another piece to the puzzle of how these essential organelles function and contribute to cellular longevity. By revealing the role of membrane dynamics, calcium signaling, and the physical mechanisms governing mitochondrial DNA distribution, this research highlights the remarkable adaptability and complexity of these cellular powerhouses.
