I get them from Boots. But again, they're English hairdressers so you might not be able to find them. If you can find Mark Hill go with the Ultimate shine cleansing shampoo and Ultimate shine moisturizing conditioner. You can get either really big ones or 'little gems' theyre like mini ones i use them because they last AGES i have a lot of hair and i use a walnut size amount because its so hard to wash out you only need a tiny bit. One of the Little gem ones last me about 9-10 week. Also with conditioner you shouldn't put it on your scalp just the ends of your hair and comb through with your fingers. It helps dandruff, stops it looking greasy quickly because the oils from your head dont go well with the oils from the conditioner and it makes it more shiny because its less oily..wow!
There are definitely more products out there that I need to try.
Where are you buying them from?
My favourite for thinning hair and some hair loss (stress+++++) isOf all the haircare products, what is your FAVORITE brand?
You are welcome to list the products that you prefer from that brand.