It grows weeds on your balding scalp

For now it gets a 4 because at least it's showing some results. The product asks to wash with shampoo twice (1st wash for 1-2 minutes 2nd for 3-5 minutes) and at least five times a week. At 180 ml it's about the same volume as the Neutrogena T-gel I also have. So for the price it's at on Amazon I think it's a decent price for what it claims to do.
The shampoo smells really good like a lighter version of Herbal Essence and not overwhelming like those Axe shampoos. It contains antioxidants to prevent inflammation of the scalp so I was surprised I could use this as an alternative to the tire-smelling T-gel for treating my seborrheic dermatitis. A small amount lathers really well (just like T-gel) so even though it doesn't look like much the product lasts quite a bit.
I did not see any results within the first week but I am on my third week now and am beginning to see tiny sprouts of hair where my receding hairline was. Before using this shampoo my hair used to fall out often when washing. It still falls out even now but not as much as before. It used to be maybe 7-10 strands of hair falling out but now it's 2-4 and I also notice that the base of the strands have a thicker follicle.
Judging by how much I have left I say one shampoo lasts 2-3 months considering I wash in the morning and night and use it about 5-6 days of the week. So far my scalp isn't red and it doesn't itch (great alternative to T-gel) but I'll have to give it an extra month to see how those sprouts do before giving this 5 stars.
7/12/09 UPDATE: A little girl's bday party yesterday helped make the final decision to say this product works. So before this product I would wake up with thin flat hair. About a year or two ago the older sister (about 11 during the time) of this little girl used to ask me why my hair looked thin and say "the top of your head looks empty." I told her I was getting old and balding. Yesterday this very same sister of the bday girl said "you look different it's like you have more hair." Reacting to her comment I realize my hair had more volume and felt bushy. Looking at the mirror I also realized it was thicker than before. This product may not work for everyone but it works for me. =)More detail ...