Longevity Synergy · The Botanicals

Ursolic Acid

Ursolic Acid

Ursolic acid, a pentacyclic triterpene concentrated in apple peel, rosemary, and holy basil, is studied for its role in helping maintain healthy muscle and supporting cardiometabolic wellness already within a normal range.†

Why It's In The FormulaA triterpene studied for muscle and metabolic health

Ursolic acid is a naturally occurring pentacyclic triterpene found in the waxy peel of apples and in herbs such as rosemary and holy basil. It has drawn research attention as a nutritional compound that may help support healthy skeletal muscle and lean body composition, and that may help maintain cardiometabolic measures (such as glucose, lipids, and body weight) already within a normal range.† It is perhaps best known in the longevity literature as a notable activator of AMPK, the cell's central energy-sensing enzyme, and it also engages the Nrf2 antioxidant, mTOR/autophagy, and sirtuin pathways.† Human trials to date are small and preliminary, so much of the mechanistic evidence comes from cell and animal models and should be read as early and supportive rather than definitive.†

A note on the evidence: much of the pathway research below comes from laboratory (cell) and animal studies, which show how a compound is thought to work. We label the evidence level honestly for each area so you can weigh it yourself.

What The Science SupportsCardiometabolic & muscle support

Ursolic acid is studied for two overlapping roles: helping maintain healthy skeletal muscle and supporting cardiometabolic markers already within a normal range.† A 2024 systematic review and meta-analysis of randomized trials examined its effects on cardiometabolic risk factors and suggested it may help support healthy body weight and metabolic measures, though the pooled trials were few and small.† In muscle, a landmark screen of human muscle gene-expression signatures identified ursolic acid as a compound that helped maintain muscle mass in preclinical models, and a small pilot trial in resistance-trained men reported reduced markers of exercise-induced muscle damage.† Honesty note: a separate double-blind, placebo-controlled human trial found no added benefit on strength or mass in already active men on a high-protein diet, so human muscle evidence remains mixed and preliminary.†

Sources: [1] [2] [3] [4]

How It Connects To Your Longevity PathwaysUrsolic Acid & the master pathways

Longevity Synergy is built around cellular pathways central to healthy aging. Here is how Ursolic Acid engages each one, with the research behind it.

Nrf2 Activation Preclinical, consistent

Nrf2 is a master transcription factor that switches on the body's built-in antioxidant and detoxification defenses, helping cells maintain healthy redox balance. Across multiple animal models, ursolic acid has been shown to activate Nrf2 signaling (including the downstream Nrf2/HO-1 axis), which may help support the body's own antioxidant defenses and a healthy response to oxidative stress.† This evidence is consistent but preclinical, drawn from rodent studies rather than human trials.†

Sources: [5] [6]

AMPK Activation Preclinical, consistent

AMPK is the cell's fuel gauge: when activated it promotes energy production, fat burning, and mitochondrial upkeep, and it is a pathway shared by exercise and caloric restriction. Ursolic acid is a notable AMPK activator, and in muscle-cell and animal studies it has been shown to switch on AMPK together with PGC-1, supporting mitochondrial biogenesis and fatty-acid oxidation to help maintain healthy energy metabolism.† This is one of ursolic acid's most consistently reported mechanisms, though the direct evidence remains preclinical.†

Sources: [7] [8]

mTOR Modulation & Autophagy Preclinical

mTOR is a growth-and-nutrient sensor whose balance with autophagy (the cell's recycling and clean-up process) is central to healthy tissue maintenance and aging biology. Ursolic acid appears to modulate this pathway in a context-dependent way: in rodent muscle after resistance exercise it supported anabolic mTORC1 signaling that helps maintain healthy muscle, while in cell studies it tempered nutrient-driven mTORC1 activity, a shift that favors autophagy.† All current evidence here is preclinical and mechanistic.†

Sources: [9] [10]

Sirtuin Activation Preclinical

Sirtuins (especially SIRT1) are NAD-dependent enzymes that help coordinate metabolic health, mitochondrial function, and the cellular stress responses associated with healthy aging. Biochemical and review-level work suggests ursolic acid can act as a direct SIRT1 activator, which may help support the metabolic and stress-resilience programs that sirtuins govern.† This mechanism is preclinical and based largely on biochemical and hypothesis-driven evidence rather than human data.†

Sources: [11]

At A GlanceEvidence summary

Area What it supports† Evidence level
Cardiometabolic Glucose, lipids, and body weight already within a normal range Early human
Muscle / AMPK Healthy muscle and healthy energy metabolism Preclinical, consistent (early human)
Antioxidant defense (Nrf2) The body's own antioxidant defenses and a healthy oxidative-stress response Preclinical, consistent
Autophagy & sirtuins Cellular renewal and metabolic pathways tied to healthy aging Preclinical

One Capsule · Eight Botanicals

Ursolic Acid is one of eight, working in synergy

Each botanical in Longevity Synergy was chosen to support the master longevity pathways together.†

Explore Longevity Synergy

SourcesSelected research

  1. The effects of ursolic acid on cardiometabolic risk factors: a systematic review and meta-analysis. Future Cardiology, 2024 (human meta-analysis, small RCTs) https://pmc.ncbi.nlm.nih.gov/articles/PMC11216268/
  2. mRNA Expression Signatures of Human Skeletal Muscle Atrophy Identify a Natural Compound that Increases Muscle Mass. Cell Metabolism, 2011 (cell/animal) https://www.sciencedirect.com/science/article/pii/S155041311100177X
  3. Ursolic acid supplementation decreases markers of skeletal muscle damage during resistance training: a pilot study. J Exerc Nutrition Biochem, 2016 (human pilot RCT) https://pmc.ncbi.nlm.nih.gov/articles/PMC5709482/
  4. Ursolic acid has no additional effect on muscle strength and mass in active men undergoing a high-protein diet and resistance training. Clinical Nutrition, 2020 (human RCT, null result) https://pubmed.ncbi.nlm.nih.gov/32593524/
  5. Ursolic acid reduces oxidative stress injury by activating the Nrf2/HO-1 signaling pathway. Frontiers in Pharmacology, 2023 (animal) https://pmc.ncbi.nlm.nih.gov/articles/PMC10403233/
  6. Ursolic acid promotes neuroprotection by activating the Nrf2 pathway after cerebral ischemia in mice. Brain Research, 2012 (animal) https://www.sciencedirect.com/science/article/abs/pii/S0006899312019671
  7. Ursolic acid induces mitochondrial biogenesis through activation of AMPK and PGC-1 in C2C12 myotubes. Food & Function (RSC), 2017 (cell) https://pubs.rsc.org/en/content/articlelanding/2017/fo/c7fo00127d
  8. Ursolic acid increases energy expenditure through free fatty acid uptake and oxidation via a UCP3/AMPK-dependent pathway in skeletal muscle. Molecular Nutrition & Food Research, 2015 (animal) https://pubmed.ncbi.nlm.nih.gov/25944715/
  9. Ursolic acid stimulates mTORC1 signaling after resistance exercise in rat skeletal muscle. Am J Physiol Endocrinol Metab, 2013 (animal) https://journals.physiology.org/doi/abs/10.1152/ajpendo.00302.2013
  10. Ursolic Acid Inhibits Leucine-Stimulated mTORC1 Signaling by Suppressing mTOR Localization to Lysosome. PLOS ONE, 2014 (cell) https://pmc.ncbi.nlm.nih.gov/articles/PMC3989317/
  11. Mounting evidence validates Ursolic Acid directly activates SIRT1: a powerful compound that mimics endogenous activation of SIRT1. Medical Hypotheses, 2018 (review/biochemical) https://pubmed.ncbi.nlm.nih.gov/29758202/

†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Much of the pathway research described above is from laboratory and animal studies and indicates biological mechanisms rather than proven human outcomes.

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