Summary of earlier studies
Red light therapy and aging: what a review of past studies found
This review looks at past studies of red and near-infrared light on aging-linked conditions. It says the results are promising, but treatment methods are not yet standard.
People
Light mask and cream study on skin aging in women
Skin samples and 50 women used a light mask and cream for weeks, and skin looked better. This study was small and early, so it does not prove the products work for everyone.