This article shows the results of measuring the beta-carotene, lycopene, ascorbic acid and sugar levels, acidity and other indicators in tomato fruits grown using Organic and Double Roots, biological products manufactured by Bioelements Ltd (York, UK) and containing spore-forming soil bacilli, nitrogen-fixing bacteria and mycorrhizal fungi. The products are certified for use in organic agriculture by the Soil Association (UK). The research results demonstrate that the use of these biological products contributes to an increase in the content of powerful antioxidants (lycopene and beta-carotene) and sugar in tomato fruits; such indicators as taste index, dry matter content, and mineral content have also increased.