However, being a scientist, I do think that solution should be made up very similar if not exactly as the lumigan in order to expect the same or similar results. Different chemicals dissolve in different solutions and pH value can affect the effectiveness of a chemical. The ingredients of lumigan are:
ACTIVES: bimatoprost 0.3 mg/mL.
PRESERVATIVE: Benzalkonium chloride 0.05 mg/mL.
INACTIVES: Sodium chloride; sodium phosphate, dibasic; citric acid; and purified water.
The inactive is PBS (phosphate buffer saline). A solution used to maintain pH. Normal saline solution from the local pharmacy will serve the same purpose
All of the ingredients can be bought easily online ( well aside from bimat) and this recipie can be followed
http://www.caymanchem.com/pdfs/16820.pdf
Judging from that document, I gather that the solubility of bimat directly in PBS or saline is 300mcg/ml (0.03g/ml) the same concentration as Lumigan.
However to get a higher concentration you first have to dissolve it in Ethanol or DMSO at a concentration of 25mg/ml or 100mg/4ml and then dilute with PBS or saline to desired concentration and then add the preservative.. (I prefer DMSO to ethanol as I use it in the lab).
so basically you can get DMSO from
http://cgi.ebay.com/DMSO-99-99-Pharmaso ... 2eb46ffcb3
and then the preservative from
http://mistralni.co.uk/details.php?id=1 ... 4QodIBsEqg
and saline from your local pharmacy.
If I can get my hands on 100mg of bimat. I would make up 1mg/ml (over 3 times the concetration of lumigan). to do this I will
1) Dissolve 100mg of bimat in 4ml of DMSO
2) 10ml of 50% Benzalkonium chloride
3) 2ml of PG to enhance penetration (this is not part of the original lumigan ingredient list)
3) Top up 84ml of saline or PBS
TOTAL VOLUME = 100ml at the conectration of 1mg/ml. TEST PH and make sure it ranges from 6.8 - 7.3
and there you have your very own lumigan. To be on the safe side, you can use half or quater of the everything to get the same concentration of 1mg/ml.
I hope I have not given everyone brain freeze lol. I hope this helps anyone thinking of formulating their own solution. I already have dmso, PBS buffer. PG and Benzalkonium chloride ready all I need now is some bimat.
So come on peeps let us get another group purchase
NB: I will be more than happy to sell (for a very small fee) a batch of each ingredients as well as instructions. Measuring devices like pippetes can be easily obtained from ebay