From Nasaspacetechnology
In The 1980s,Nasa (Nationalaeronautics And Space Administration Of The Unitedstates) Used Phototherapytechnology In Space Experiments. Later, Researchproved That Different Wavelengths Of Light Waves Would Have Different Skincare Effects On The Human Body.From Nasa’s Space Technology In The 1980s, Nasa(National Aeronautics And Space Administration Of The United States) Used Pho-Totherapytechnologyin Space Experiments. Later,Research Proved That Differentwavelengths Of Lightwaveswould Have Different Skin Care Effects On Thehuman Body.