This is a working overview of Cardarine, written for readers who want more than a one-paragraph summary but less than a textbook.
This page was last updated on 2026-03-18 and is reviewed periodically as new material appears.
Stability of GW501516 depends on form, temperature, light exposure, and moisture. Solid reference material is typically stored frozen or refrigerated in a desiccator and protected from light. Solutions in organic solvents such as dimethyl sulfoxide are often kept frozen in aliquots to reduce freeze-thaw cycling. Aqueous solubility is low, so aqueous stock solutions can be difficult to prepare without cosolvents. Degradation may appear as changes in chromatographic purity or mass spectral signal. Stability studies are needed to establish shelf life for any specific preparation.
Quality assessment for cardarine samples usually combines identity, purity, and impurity testing. Nuclear magnetic resonance spectroscopy and mass spectrometry can confirm molecular structure, while high-performance liquid chromatography estimates purity. Certificates of analysis from testing laboratories may list these results, but they do not establish safety or legality. In the absence of approved manufacturing, products sold online may contain the wrong compound, variable amounts, or unlisted contaminants. Independent verification is therefore central to analytical work and to interpreting any reported biological activity.
The compound is typically described as a laboratory compound rather than a therapeutic product. Published reports have explored its role in lipid disorders, insulin sensitivity, and exercise metabolism, yet no major drug regulator has approved it for medical use. Commercial samples sold under the cardarine name may vary in purity and identity. Analytical confirmation is therefore necessary when the material is discussed in scientific or regulatory contexts. Its classification as a prohibited substance in sport further shapes how it is studied and reported.
Cardarine is a common name for GW501516, a synthetic compound studied for its effects on lipid and glucose metabolism. It functions as an agonist at peroxisome proliferator-activated receptor delta, or PPARδ, a nuclear receptor that influences gene expression. The molecule is not a steroid, nor is it a selective androgen receptor modulator. It is also known in research and sports literature as GW-501516 and endurobol. Early laboratory work examined its metabolic activity in cell cultures and animal models.
| Property | Value | Notes |
|---|---|---|
| Appearance | White to off-white powder | Common for reference-grade material. |
| Solubility | Low in water | Dissolves in DMSO and some organic solvents. |
| Typical storage | -20 °C, desiccated | Protect from light and moisture. |
| Analytical method | LC-MS/MS | Used for trace detection in biological matrices. |
| Purity assessment | HPLC with UV detection | Often combined with NMR and mass spectrometry. |
Human trials of GW501516 were small and short in duration. They examined lipid levels, glucose handling, and other metabolic markers, but the programs were halted after the animal cancer findings. No approved therapeutic product exists, and published human data are insufficient for establishing long-term safety. Reports of use for athletic performance come mainly from non-clinical settings and cannot be verified through controlled trials. Independent testing of products sold as cardarine has found inconsistent purity and labeling.
Laboratory studies indicate that GW501516 activates PPARδ, a nuclear receptor involved in fatty acid oxidation and energy metabolism. In rodent experiments, treated animals often showed increased endurance and reduced fat mass. These effects were observed under controlled conditions and do not establish safe or effective use in humans. The exact dose-response relationship in humans remains poorly characterized. Species differences in metabolism can affect how results translate across animals and people.
A common misconception is that cardarine has been proven safe for human use. In reality, human clinical data are limited, and long-term animal studies have raised concerns about cancer. Another misconception is that it is a supplement or vitamin-like compound. It is a synthetic research chemical with no approved medical indication. Scientific discussion often focuses on its mechanism and detection rather than therapeutic use. Regulatory and anti-doping literature treats it primarily as a prohibited substance.
Cardarine is explicitly prohibited by the World Anti-Doping Agency under the class of PPARδ agonists. Its presence in urine or blood samples can be detected using mass spectrometry-based methods, often liquid chromatography-tandem mass spectrometry. Athletes who test positive may face sanctions, including bans from competition. The compound is also regulated as a prescription-only or unapproved drug in many countries. Enforcement varies by jurisdiction, and some regions treat it as a controlled substance. Online sales may occur despite these restrictions, creating quality and legal risks.
Laboratory detection of cardarine typically involves sample preparation followed by chromatographic separation and mass spectrometric identification. Urine is the most common matrix for anti-doping tests, though blood and hair have also been explored. Methods can target the parent compound or its metabolites, depending on the expected window of detection. Reference standards are required for accurate quantification. Matrix effects and dilution can influence results, so laboratories use internal standards and validation protocols. The exact detection window varies with dose, route, and individual metabolism.
Regulatory treatment varies, but cardarine is not approved as a medicine. Sports authorities list GW501516 as a prohibited substance, and it is banned at all times under the World Anti-Doping Agency code. Many countries restrict sales for human consumption, while online vendors market it as a research chemical. Such products may lack purity data, and their actual contents can differ from the label. Purchasing or possessing cardarine may carry legal consequences depending on jurisdiction. The compound is not a dietary supplement ingredient in regulated markets.
Clinical development stopped after rodent studies showed tumors at multiple sites. Whether those findings predict human cancer risk remains an open question, but they led sponsors to discontinue programs. Human safety data are limited to small, short-term studies that were not designed to assess cancer risk. Reported effects in those studies included changes in blood lipids, but the evidence is insufficient for medical use. Long-term consequences of nonmedical use are not well characterized. Questions about dose, duration, and individual susceptibility remain unresolved.
Cardarine is a common name for GW501516, an investigational compound developed in the 1990s for metabolic conditions. It acts as an agonist at peroxisome proliferator-activated receptor delta, a nuclear receptor involved in lipid and energy metabolism. The compound is frequently mislabeled as a selective androgen receptor modulator, or SARM, but its molecular target is different. GW501516 reached early clinical testing before development was discontinued. It has no approved therapeutic use in any country. The name cardarine is not a formal international nonproprietary name.
=== Hair loss === Studies have reported that PRP is beneficial for alopecia areata and androgenetic alopecia and can be used as an alternative to minoxidil or finasteride. A review reported it to improve hair density and thickness in both genders. A minimum of 3 treatments, once a month for 3 months are recommended, and afterwards a 3-6 month period of continual appointments for maintenance. Factors that determine efficacy include number of sessions, double versus single centrifugation, age, gender, and the injection site.
== Distinctions and honors == During his life, Jones was awarded 61 patents. Forty were for refrigeration equipment, while others were for devices for theater equipment and devices pertaining to gasoline engines.
== Early life and education == Freeman was born on June 1, 1937, in Memphis, Tennessee. He is the son of Mamie Edna (née Revere; 1912–2000), a teacher, and Morgan Porterfield Freeman (July 6, 1915 – April 27, 1961), a barber, who died of cirrhosis in 1961. He has three older siblings. Some of Morgan's great-great-grandparents were slaves who migrated from North Carolina to Mississippi. He later discovered that his white maternal great-great-grandfather had lived with and was buried beside Freeman's black great-great-grandmother in the segregated South, as the two could not legally marry at the time. A DNA test suggested that among all of his African ancestors, a little over one-quarter came from the area that stretches from present-day Senegal to Liberia and three-quarters came from the Congo-Angola region. As an infant, Freeman was sent to his paternal grandmother in Charleston, Mississippi. He moved frequently during his childhood, living in Greenwood, Mississippi, Gary, Indiana, and finally Chicago. He made his acting debut aged nine, playing the lead role in a school play. He then attended Broad Street High School, a building which serves today as Threadgill Elementary School in Greenwood. At the age of 12, he won a statewide drama competition, and while settling into school, discovered music and theater. When Freeman was 16 years old, he contracted pneumonia. Freeman graduated from high school in 1955, but turned down a partial drama scholarship from Jackson State University, opting instead to enlist in the United States Air Force.
=== Outer membrane and surface antigens === The of T. pallidum has several features that have made it historically difficult to research. These include details such as its fragility. The treponemal outer membrane (OM) proteins are key factors for the bacterium's pathogenesis, persistence, and immune evasion strategies. Treponema's reputation as a "stealth pathogen" is primarily due to this unique (OM) structure, which serves to evade immune detection. The outer membrane of Treponema pallidum contains a strikingly low concentration of transmembrane proteins, approximately 100-fold lower than other gram-negative bacteria or other spirochetes. This protects the cells from antibodies attacking it, hence they exhibit a "puzzling lack of antigenicity". The genome also revealed a bundle of 12 proteins and some putative hemolysins are potential virulence factors of T. pallidum. One protein, TprK, appears to constantly mutate to avoid immune response from its host.
== Works == Gish, Duane T. 15 Scopus Publishers. Gish, Duane T. (1972). Speculations and Experiments on the Origins of Life. New Leaf Pr. ISBN 0-89051-010-5. Gish, Duane T. (1972). Evidence against evolution. Wheaton, Ill: Tyndale House Publishers. ISBN 0-8423-0790-7. Gish, Duane T. (1986) [1972]. Evolution, the fossils say no!. San Diego, Calif: Institute for Creation Research Publishing. ISBN 0-89051-057-1. Gish, Duane T. (1973). Have You Been... Brainwashed?. Seattle, Washington: Life Messengers. p. 32. OCLC 10930514. Hillestad, George M.; Morris, Henry; Gish, Duane T. (1974). Creation: acts, facts, impacts. San Diego, Calif: ICR Pub. Co. ISBN 0-89051-020-2. Gish, Duane T. (1977). Dinosaurs: Those Terrible Lizards. Green forest, Arkansas: Master Books. ISBN 0-89051-039-3. Rohrer, Donald H.; Gish, Duane T. (1978). Up with creation!: ICR acts/facts/impacts, 1976-1977. San Diego, California: Creation-Life Publishers. ISBN 0-89051-048-2. Gish, Duane T.; Wilson, Clifford (1981). Manipulating life, where does it stop?: Genetic engineering. Green Forest, Arkansas: Master Books. ISBN 0-89051-071-7. Gish, Duane T. (1985). Evolution: the challenge of the fossil record. San Diego, Calif: Creation-Life Publishers. ISBN 0-89051-112-8. Gish, Duane T. (1988). Creationist Research 1964-1988. Creation Research Society. ISBN 0-940384-06-X. Bonnie Snellenberger; Gish, Duane T.; D Dish; Earl Snellenberger (1990). The Amazing Story of Creation: From Science and the Bible. Green Forest, Arkansas: Master Books. ISBN 0-89051-120-9.
Sources: en.wikipedia.org
light red or dark pink, being perfused with new capillary loops or "buds"; soft to the touch; moist; bumpy (granular) in appearance, due to punctate hemorrhages; pulsatile on palpation; painless when healthy;
General Blood was an FDA-registered and AABB accredited distributor of human blood, platelets, and plasma for hospitals, non-transfusion facilities, and group-purchasing organizations. General Blood's process was designed to balance excesses and shortages of blood by improving supply chain efficiencies and logistical models within the blood distribution industry. The company is now defunct.
Three Hells Siblings (ヘルズ3兄弟, Herusu San Kyōdai): Three alien siblings from Planet Reversia who are wanted on 79 planets on marauding and murder charges and possess a Kaijuki called God Pounder (ゴッドパウンダー, Goddo Paundā). Their modus operandi is to have Succubus and Bon-Goblin arrive on an ideal planet first before contacting Blitz. Once they can have their fun with the planet and its inhabitants, they destroy the former and move on to another planet to repeat the process. Upon arriving on Earth however, they are pursued by Deka Break. Reversian Bon-Goblin Hells (リバーシア星人ボンゴブリン・ヘルズ, Ribāshia Seijin Bon-Goburin Heruzu): A goblin-themed criminal, the middle child of the Hells Siblings, and the strongest member who possesses an insatiable hunger, poly-matter digestion capabilities, metallic fists, and a muscular body that renders him immune to most bladed weapons, though his throat is his weakest area. After enlarging himself, he is deleted by Deka Bike Robo. During the events of the crossover film Tokusou Sentai Dekaranger vs. Abaranger, Trinoid #0 Saunaginnan resurrects Bon-Goblin, who is subsequently deleted by Aba Red, Abare Blue and Black, and Deka Yellow. Bon-Goblin is voiced by Toshiharu Sakurai (桜井 敏治, Sakurai Toshiharu) in the series and by Katsumi Shiono in Dekaranger vs. Abaranger. Reversian Succubus Hells (リバーシア星人サキュバス・ヘルズ, Ribāshia Seijin Sakyubasu Heruzu): A humanoid succubus-themed criminal and the youngest of the Hells Siblings who is capable of draining the lifeforce of those she touches.
They also reported that facilities that offered these surgeries were also posting about them on TikTok. TikTok has banned the advertising of cosmetic surgeries on the platform but cosmetic surgeons are still able to reach large audiences using unpaid photo and video posts. NBC reported that videos using the hashtags '#plasticsurgery' and '#lipfiller' had amassed a combined 26 billion views on the platform. In December 2022, it was reported that a cosmetic surgery procedure known as buccal fat removal was going viral on the platform. The procedure involves surgically removing fat from the cheeks in order to give the face a slimmer and more chiseled appearance. Videos using hashtags related to buccal fat removal had collectively amassed over 180 million views. Some TikTok users criticized the trend for promoting an unobtainable beauty standard.
==== Sucrase ==== Function: Sucrase is a stomachs related protein that mobilizes hydrolysis to convert sucrose into glucose and fructose. Clinical Significance: Low amounts of Sucrose also known as Sucrose intolerance happens when sucrose isn't being discharged in the small digestive tract. A result of this is extra gas.
Sources: en.wikipedia.org
==== Dismissal of Hernán Condori ==== On 31 March 2022, a motion of censure against the Minister of Health Hernán Condori was debated in the plenary session of the Congress of the Republic. At the end of the debate, the minister was censured with 71 votes in favor, 32 against, and 13 abstentions. This is due to Minister Condori's mismanagement of the COVID-19 crisis and various controversies surrounding his professional past. On 7 April 2022, Jorge López Peña, until then Condori's deputy minister, took office as Minister of Health.
Directing edits to correct mutated sequences was first proposed and demonstrated in 1995. This initial work used synthetic RNA antisense oligonucleotides complementary to a pre-mature stop codon mutation in a dystrophin sequence to activate A-to-I editing of the stop codon to a read through codon in a model xenopus cell system. While this also led to nearby inadvertent A-to-I transitions, A to I (read as G) transitions can correct all three stop codons, but cannot create a stop codon. Therefore, the changes led >25% correction of the targeted stop codon with read through to a downstream luciferase reporter sequence. Follow on work by Rosenthal achieved editing of mutated mRNA sequence in mammalian cell culture by directing an oligonucleotide linked to a cytidine deaminase to correct a mutated cystic fibrosis sequence. More recently, CRISPR-Cas13 fused to deaminases has been employed to direct mRNA editing. In 2022, therapeutic RNA editing for Cas7-11 was reported. It enables sufficiently targeted cuts and an early version of it was used for in vitro editing in 2021.
== Interactions == Being metabolized only to a small extent, the substance has a low potential for interactions. In studies, inhibitors of the liver enzymes CYP3A4, CYP2C19, and CYP2C9, as well as the CYP3A4 inducer rifampicin, had no relevant influence on baricitinib concentrations in the bloodstream. While baricitinib blocks a number of transporter proteins in vitro, clinically relevant interactions via this mechanism are considered very unlikely, except perhaps for the cation transporter SLC22A1 (OCT1). An additive effect with other immunosuppressants cannot be excluded.
7 November – Scottish ministers say they will not comply with UK government legislation to enforce a 40% minimum service during strike action, with Neil Gray, the Cabinet Secretary for Wellbeing Economy, Fair Work and Energy, describing the plans, outlined in the Strikes (Minimum Service Levels) Act, as "appalling". 9 November – First Minister Humza Yousaf defends £11,000 worth of roaming charges accrued Health Secretary Michael Matheson as he used his parliamentary iPad during a holiday to Morocco as a "legitimate parliamentary expense". Matheson has blamed the charges on an "outdated sim card". 10 November – Around 500 employees of Scottish Water belonging to the GMB, Unite and Unison trade unions, begin a four-day strike over a pay dispute. Scotland's Health Secretary, Michael Matheson, agrees to pay back the £11,000 of roaming charges he built up while using his iPad during a holiday in Morocco. 11 November – Edinburgh will become the first city in Scotland to make pavement parking illegal, starting in January 2024. 12 November – NHS Greater Glasgow and Clyde, Scotland's largest health board, is named in a corporate homicide investigation following the deaths of four patients at a Glasgow hospital. 14 November – Seven members of a paedophile gang are found guilty of running a child sex abuse ring in Glasgow, described by the NSPCC as one of the worst cases of its kind in decades. Scottish Conservatives threaten to table a vote of no confidence in Health Secretary Michael Matheson if he refuses to hand over his ministerial iPad.
=== Other uses in science and technology === Rapid prototyping, a manufacturing and engineering process Rear projection effect, a film technique Red phosphorus, an allotrope of the element Rendezvous Point in Protocol Independent Multicast, a collection of network layer multicast routing protocols Reversed-phase chromatography, a laboratory technique Route Processor, a general-purpose CPU in some Cisco routers RP, a small rock climbing nut, named after Roland Pauligk RP-1, a rocket propellant RP-3, a British rocket projectile in World War II
Sources: en.wikipedia.org
LC-MS/MS is common, often after sample cleanup. The assay targets GW501516 or its metabolites.
Reference material is usually kept cold, dry, and protected from light. Frozen aliquots reduce repeated freeze-thaw cycles.
No approved pharmaceutical product exists, so manufacturing and quality controls are not standardized. Products may contain different compounds or impurities.
Cardarine is a common name for GW501516, a synthetic PPARδ agonist. It is not a steroid or a selective androgen receptor modulator. It was developed and studied as a research compound for metabolic pathways.