Unyango olukhanyayo lwe-LED luya kwenza ulusu lwakho lube mnyama, ngaba yinyani?
Uphando lwexesha elide lwezonyango luye lwaqinisekisa ukuba xa izibane ze-LED ze-wavelength echaziweyo zikhanyisa eluswini lwethu, zineempembelelo zokuvuselela ulusu, i-acne kunye nokususwa kwe-freckles kunye nokunye. Bl...