Argentyn 23 236ml Polyseal Cap (6+1, Mix & Match, Add 6 to your basket)Buy 6 get 1 free. Add 6 to your basket. If you Mix and Match you will get the cheapest free. RRP:59. 99 Argentyn 23 Bio Active Silver Hydrosol professional formula. Easy Absorption Unprecedented tiny particles as small as 0. 8 nanometers provide greater surface area in an ultra fine dispersion Positive Charge Greater than 98% bio active silver ions and silver nanoclusters Purity Argentyn 23 is created with just two ingredients: 99. 999% pure silver in