DARK NECK CAN BE CAUSED BY OVEREXPOSURE TO THE ULTRA VIOLET (UV) RAYS OF THE SUN, EXPOSURE TO HARSH CHEMICALS DERIVED FROM BATHING SOAPS AND CREAMS, DIABETES, FATNESS, POOR HYGIENE, ETC.
The best solution is to engage in a simple homemade DIY remedy that will lighting your dark neck in just 20 minutes;
HERE IS HOW TO GO ABOUT IT.
Step 1: Steaming
Step 2: Exfoliating
Step 3: Dark Neck Removal Whitening Pack
Checkout The Complete Remedy in this video bellow;