Hi, For my family needs I require 2 eye drops - HY-5 and Refresh Liquigel. I saw on internet that there's an alternative for both of them sold by zeelab pharmacy and there is a lot of price difference as follows - 1) HY-5 - cost Rs. 120, zeelab alternative "zeemoist" which costs Rs. 75. 2) Refresh Liquigel - costs Rs 180, zeelab alternative "hypermist 1%" which costs only Rs. 16. Is it safe to use zeelab's medicines? How are they able to sell same salts with such huge difference, is there anything wrong? Thanks.