Hmmm, the degree of Melanotan tanning seems to be inversely proportional to your skin type. Luckily, for those of us who really need it (pale skin, can't tan, always burn), it works the best. There is a point of diminishing returns, but I don't have any experimental data to tell you exactly where that point is.
 
Only from theory can I tell you that the amount of tanning you will get is in direct relation to the number of melanocytes you have. Under normal circumstances, melanocyte cells rarely divide (as compared to other types of cells). UV stimulation, either sunlight or tanning bed will cause them to increase in number. However, this does not mean you should be tanning yourself to death because .. as in most situations in life .. there are always trade-offs that act as counter balance.
 
More research needs to be done in order to find what is the maximum safe exposure one may have without causing damage to the skin. So, a little is good and too much is bad. In between is unknown, so its best to be cautious. As for question #1, increasing the dosage .. not a good idea. Too much melanotan II has bad side effects, feelings of nausea, vomiting, long-term erections for guys, sleepiness.
 
Remember, the tanning process with Melanotan is a natural process and so it will take just as long. You'll not get an overnite tan. It takes awhile for the melanosomes to produce melanin and then for the keratinocytes to carry the melanin to the upper layers of the skin as they die off. That's probably why most experimentors who have tried this don't notice a tan until after a week or so.
 
And as for question #2, my guess is early 2007.
 

Hey,,,,,,,,,, where on earth did you get the stuff? Did you notice any adverse effects? Vomiting, nausea, etc?

Revised date for commercialization is more likely 2008-2009. That REALLY sux ...

Well, Melanotan will become first available in Australia. After that, Europe ... and then the USA. As it stands now, Epitan has yet to begin worldwide Phase III trials. It must complete this trial to gain approval by the regulatory bodies in both Europe and the USA. Epitan is not going to start its Phase III trials until next year.
 
So, a target date of 2006 is pure hogwash, manure, and perhaps rubbish! It will take a year to run this large-scale trial involving about 1500 people ... administer  the trial, collect data, analyze data, draw conclusions, write up press release, etc ...
 
So, a target date of 2007 is also rubbish. Because after they have run the trial then they will need to submit all their info to the regulatory boards for approval. Nothing ever happens very fast. And on top of that, you would need to have a period of marketing and advertising before releasing the drug to the public. So, 2008 if all goes well ... 2009 if we have any hurdles to overcome.