Japanese denim master Warehouse Co. bring us their newest denim washing solution - Nano Colloid Premium Denim Wash. Using soy acid and highly purified water as resources to create the nanoparticle which highly increase cleaning efficiency. The detergent removes stains and gentle to not just indigo color but also all the natural sourced dyes. It will keep your garment's color rich through time. Every time you just need a cup of them (around 10ml) and you can wash not just your denim but basically everything that is cotton made.
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