Cyco Nutrients - Platinum Series - B1 BoostPotent Booster for the Vegetative Stages Cyco Platinum Series B1 Boost delivers concentrated doses of thiamine (B1), a natural vitamin that has powerful effects on both plants and humans. Thiamine is present in an array of organic materials, including plant matter, bacterial excrement and fungi. It is an essential nutrient for plants, as it is involved in several key metabolic processes. It is required for the synthesis of thiamine diphosphate (TDP),