[i.munro]

While I applaud everyone's intentions stressing about a few micrograms of tree sap seems a bit "stable door" when every hold in the country is covered in much larger quantities of whatever the f$% it is that Metolius put in their super-chalk with  whatever unknown effect that might have on the rock.

[Fiend]

http://onlineclimbingcoach.blogspot.fr/2012/10/review-liquidgrip.html

Well there you go. It's "okay". 

[finbarrr]

i've bought and tried it myself, and i do like it.. for climbing routes.. indoors.
that is when i notice my hands sweat less, i chalk up way less than without liquid chalk.
with bouldering though, it works until i slip of a few holds, then i'm back to chalking up.
i guess with routes i hardly slip of holds so the top skin layer stays intact, where as with bouldering the top skin layer, or at least the interaction between the it and the super-liquid-chalk-resin wears off

[Sasquatch]

See this review - Not scientific, but something to think about.

http://rvproj.com/2012/11/30/a-review-of-liquid-grip-the-new-liquid-chalk/