Molecular Sieve sachet is a compact desiccant product developed specifically for moisture absorption in small packaging environments. Our comprehensive range of molecular sieve 3a or 4a packets is made of non-toxic, non-hazardous silica gel beads. Silica gel made from silicon dioxide, and can absorb about 21% of its weight in moisture and can take relative humidity from the packaging environment. It's the perfect companion for your packaged goods for primary, secondary & outer packing.