Brush your accessory before the first use with a "crepe" brush (to remove dust from sanding) and waterproof it with a multi-purpose spray. Repeat on a regular basis.
Wear your accessory with dark clothes to avoid the colours staining your clothes
Avoid prolonged contact with water, humidity contributes to the transfer of colours onto clothes
Keep away from heat
Prolonged exposure to sunlight or artificial light can alter the leather colour
Taking care of your accessory and treating it delicately will ensure it lasts for a long time