Reviewer2427927发表于 Jan 23, 2011
I have been using Derk and Sandy's products for years. Their Dual-C is easy to digest, gives me energy, and adds to my good health. I highly recommend Dual-C (LEX-24009)
Reviewer2978913发表于 Feb 01, 2012
very happy in my mind
Good for the stomach !
Reviewer1171802发表于 Feb 16, 2012
Vitamine c is very important. Very good product.
Life Extension, Dual - C
Reviewer1898633发表于 Mar 15, 2012
not stomach problem.very good.