Guest guest Posted March 18, 2002 Report Share Posted March 18, 2002 The group may be interested in this email I received from Chris (jackogreen). Buffered = esterified = fat soluble form of Vitamin C. Marjorie Lazoff, MD > Greetings, > > The confusion is on the placement of " ester " in the name. ester-c > is a buffered form of vitamin c with metabolites. C ester is the > formulation Perricone endorses, and it's also known as C palmitate > (formulated with palm oil) It's fat soluble so can (theoretically) > be absorbed by the skin cell membranes. > > > Esterification changes an acid molecule into a pH neutral > > molecule, so esterification of l-ascorbic acid would be expected > > to give a more stable solution with a longer shelf life, that is > > less irritating to the skin -- which is good news. The big > > question is whether skin cells can re-convert an estered form > > back into its acid form, and in high enough concentrations to do > > any good clinically. > > The controversy with C palmitate is whether it's " bioavailable " > enough to supply an effective level of c acid at the cellular > level. Perricone and others claim it is; many claim it is not. I > take it orally with EFA; tried it topically but had a bad reaction. > I don't know if that was the palmitate, though, or just the jojoba > I mixed it in because I seem to be getting a bad reaction to all > topicals these days. My low GI diet and oral supplements seem to > keep skin under control generally, thankfully. > > Chris Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.