A-Larix (Larch Arabinogalactan) is a highly branched polysaccharide or fiber derived from the Larch Tree (Larix species), with low molecular weight, consisting of a galactan backbone with side-chains of galactose and arabinose sugar.

According of the publication in Official Journal of the European Union on 21.3.2018 COMMISSION IMPLEMENTING REGULATION (EU) 2018/461, authorising an extension of use of taxifolin-rich extract as a novel food under Regulation (EU) 2015/2283 of the European Parliament and of the Council, and amending Commission Implementing Regulation (EU) 2017/2470. EU Regulation 2018/461.

In the United States, the use of dietary supplements supervised by The United States Food and Drug Administration (FDA or USFDA) is a federal agency of the Department of Health and Human Services.

In Australia and New Zealand, the use of food additives in foods is regulated by the Food Standards Code and enforced under state and territory food laws. The Australia New Zealand Food Authority (ANZFA) is responsible for developing of, or variation to, food standards in the Food Standards Code. The Australia New Zealand Food Standards Council (ANZFSC), made up of State, Territory, Commonwealth and New Zealand Health Ministers, makes the final decision. ANZFA only allows additives if it can be shown that no harmful effects are expected to result. This involves their scientists evaluating the data gained from extensive testing of the additive. A decision on food additive safety is based on the acceptable daily intake (ADI), which is amount of a food additive that can be eaten every day for an entire lifetime without adverse effect.