Best Lactium for Sleep
Top 1 products ranked
Last reviewed May 2026
Clinical dose: 150–300 mg
Why Lactium for Sleep
Lactium plays a supporting role in sleep. Bioactive decapeptide (alpha-casozepine) derived from bovine alpha-s1 casein via tryptic hydrolysis. Binds GABA-A receptors with benzodiazepine-like anxiolytic action without dependence risk. In clinical studies, lactium may improve sleep efficiency (1 DB-RCT, 48 participants).
What dose to look for
Clinical studies typically use 150–300 mg of lactium. RCTs used 150–300 mg/day. Kim 2007 used 150 mg/day for stress; Kim 2019 used 300 mg/day for sleep. Products below this range may not deliver meaningful results.
What the research says
Lactium has limited clinical evidence for sleep benefits. Only 2 small manufacturer-funded clinical trials (48-63 participants each) for stress and sleep Learn more
