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foc.us is an online store offering consumer‑grade non‑invasive brain stimulation devices (including tDCS, tACS, tRNS, and tPCS) such as the Go Flow and Focus V3, with up to 4 mA current. The site provides electrode placements, 3D head models, manuals, and educational content on brain stimulation for cognitive enhancement and focus. The company is Brain Control Co. Ltd, featuring testimonials, support resources, and neuroscience news related to their neurotech products.
AI named foc.us from December 2025 to March 2026.