I am using this myself for a week now. I got mine for €37.95 incl. shipping.
It is a thick red/brown liquid, i can't tell if it's similar to the other spectrals, because i am not familiar with them.
The package comes with both a sprayer and a dropper. After the second time of usage, the sprayer got clogged or something, anyways its broken.
On both the box and the manual it says that users should see dramatic increase of hair after 3 months of consistent use. Never saw such a promise one a hairgrowth product. Hope they make it true.
Currently i am only using DNC-n in evening, it really messes up my hair and it takes about 5 hours before it's completely dried. I am using rogaine foam in the morning with the dermaroller.
The also say on the box that the efficacy of a particular forumlation does not drop of over time, as comonly happens with topical therapies. So lets say that rogaine will help you 5 years and then you are at base-line again, will this product sustain for at least 15 ?
fingers crossed...