The question of whether Quercetin, Taxifolin (Dihydroquercetin), or Isoquercetin is a better anti-inflammatory bioactive molecule is difficult to answer definitively, as it depends on the specific context in which they are being used and the criteria being used to evaluate their effectiveness.

All three compounds are flavonoids and have been shown to have anti-inflammatory properties in various studies. Quercetin has been extensively studied and is known to inhibit the activity of pro-inflammatory enzymes and cytokines. Taxifolin, also known as dihydroquercetin, has been shown to have potent antioxidant and anti-inflammatory properties. Isoquercetin is a glycoside of quercetin and has been shown to have anti-inflammatory, antioxidant, and antihistamine properties.

There is some evidence to suggest that Taxifolin may be more effective than Quercetin or Isoquercetin in certain contexts. For example, a study published in the Journal of Agricultural and Food Chemistry in 2014 found that Taxifolin was more effective than Quercetin at reducing inflammation and oxidative stress in a rat model of liver damage.

However, it is important to note that the effectiveness of these compounds may vary depending on the specific conditions being studied and the methods used to evaluate their effectiveness. Additionally, the safety of these compounds should always be taken into consideration when considering their use as supplements or therapeutics.

In summary, Quercetin, Taxifolin, and Isoquercetin are all promising bioactive compounds with anti-inflammatory properties, and the choice of which one to use may depend on the specific context in which they are being used and the criteria being used to evaluate their effectiveness. It is important to consult with a healthcare professional before using any of these compounds as supplements or therapeutics.