Here is a link about short contact therapy for those of you who have never heard of this way of applying a retinoid (normally tazorac): it is www. freepatentsonline.com/6083963.html
I have read some positive reports online about people using short contact therapy with tazorac in particular. Do you think that using short contact therapy activates the "receptors" in such a way that they will stay activated for 12 hours until the next application? (usually short contact therapy is done 2 x per day). Do you think that collagen can be built even if the retinoid is washed off after 10 minutes? How important is it for the chemical to remain on the skin in order to build collagen?
An advantage of short contact therapy is that it reduces the potential of irritation since the retinoid is washed off.