there are many brands but all have similar efficacy. just vitamin C alone is not enough for wrinkles. also, the combination preparations that some brands market is absolute hogwash because vitamin A is a fat soluble vitamin and vitamin C is a water soluble vitamin and they cannot have stability in the same solution. but, the quality products of vitamin C tend to be expensive unfortunately. For Vitamin A still a cheaper variant may be tried.. although not ideal. You should send me images through private online consult for a better assessment of the problem and approaching it accordingly. Hope this is helpful.