Sensory & Sleep Wellness Buyer Guides

Sleep formulations should typically combine 3 to 6 active ingredients across mechanism families: GABA agonists or precursors (L-theanine 200 mg, GABA 100–300 mg), melatonin (kept low at 0.5–1 mg unless you’re shifting time zones), magnesium glycinate or threonate (200–400 mg), and adaptogens like ashwagandha (KSM-66 at 600 mg). Avoid mega-dose melatonin formulations (5+ mg) — research now suggests lower doses match physiological signaling more effectively. Hearing-health formulations to scrutinize closely: look for combinations of NAC, alpha-lipoic acid, and ginkgo biloba alongside zinc and folate — the evidence here is mixed but these ingredients have at least some controlled studies behind them. Vision-support formulations should center on lutein (10 mg) and zeaxanthin (2 mg), the only two carotenoids with strong AREDS2-style evidence for macular pigment, optionally complemented by bilberry and astaxanthin. Across all three sub-categories, the most credible products will have third-party testing certificates, dose disclosure, and modest claims framed in terms of "support" rather than "restore." A guarantee window of 90 to 180 days is appropriate here because results in sleep, hearing, and vision are gradual and need at least one full month of routine adherence before any honest assessment.