FaceYoga by Vibhuti Arora

Two small recent photobiomodulation (red/laser light) studies report a drop in salivary cortisol after a single session — up to -37.5% in one group — a real but early, unreplicated signal from small samples. Face yoga, for its part, lacks solid controlled trials evaluating "depuffing" specifically tied to cortisol; existing studies mostly look at perceived facial muscle tone, not a hormonal marker. Combining both to target "cortisol face, belly, and dark circles" in one promise goes beyond what either study demonstrates on its own. Nothing dangerous here, but the marketing shorthand (every symptom of viral "moon face") outruns the evidence. Verdict: mixed — the light-therapy-cortisol lead is real but early, the rest of the promise is unproven.