Red light therapy has become a popular addition to hair regrowth routines, including Bryan Johnson’s. Otter Hair Labs examines how low-level light therapy may support follicle activity by improving cellular energy and blood flow. Clinical studies suggest modest but real benefits when used consistently. Johnson’s short daily sessions make this method easy to maintain, which increases adherence. Otter Hair Labs explains that while red light therapy alone is not a cure, it can complement proven treatments like minoxidil. Understanding its role helps readers decide whether it fits into their own hair care plan.