Low level laser (LLL) therapies pose numerous challenges for research due in part to the many dosage factors that can impact clinical use. Among the variables are wavelengths, wattage, frequency, joules, treatment frequency, treatment area and other factors. Each of these variables could have a potentially profound impact on clinical outcomes. As a result, hundreds of clinical studies on LLL reflect a mix of positive and negative outcomes for the exact same condition. (Source: ChiroACCESS: Tools for Better Patient Care)
