Does anyone know if there are transdermal forms of:

Quercetin
EGCG/Green Tea
Curcumin/Curcuminoids

I know a lot of skin care creams contain these substances but I'm looking for "pure" creams/patches/sprays that would allow a therapeutic amount to enter the blood steam.

I've done some quick searches and haven't found anything...so any help would be appreciated.

Not all substances are available transdermally. Some things (like magnesium) are absorbed better though the skin than  through the  GI tract, while other nutrients have molecules that are too large and can only be absorbed through the GI tract. I don't think bathing in green tea would give you the same health benefits as drinking it, although it may firm up the skin where it touches.