Thanks for tagging me on this. This is really cool looking stuff. Thanks
@Georgie for the great find.
This stuff should be incredibly easy to have made up and very cheap too. The original article made synthesis seem more complicated than it needs to be because they were synthesizing their thymulin from scratch. In actual fact, thymulin appears to be plentiful and cheap on Alibaba (CAS #63958-90-7):
https://www.alibaba.com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchText=63958-90-7
Once you already have thymulin, lab synthesis of zinc-thymulin is incredibly simply:
1) Attach zinc ion to thymulin by mixing thymulin with zinc oxide (1:3 w/w) in 10% acetic acid (ie. vinegar).
2) Lyophilize (freeze dry) to yield zinc-thymulin.
That's literally it. This stuff should therefore be incredibly easy for any lab to produce and not expensive at all either.
From raw zinc-thymulin powder, you then would have the following steps to produce a solution matching theirs:
1) Dissolve ZT in distilled water with preservatives benzoic acid, sodium benzoate and potassium sorbate - In honesty any preservative could be used here. Lotioncrafter and making cosmetics sell plenty. eg. Optiphen. Just a drop would probably be needed. Or adding 5% or more of ethanol to most solutions works well as a preservative. I doubt alcohol would react with the zinc-thymulin but this would need to be confirmed first. Will post on a chem site to ask.
2) Add citric acid and sodium bicarbonate as buffers to result in a colorless and odorless solution at pH 5.4 - This would be very slightly trickier as you would have to figure out the right amount of each to add to get to this pH, but this honestly wouldn't be hard either. Citric acid is easy to buy and so is sodium bicarbonate (ie. baking soda). pH test strips are cheap and easy to buy also.
Their final result was that they created: "a 100 ml spray bottle containing 0.0005% ZT as the active test agent. Subjects were instructed to spray 1-2 ml of solution, twice daily, and rub into the scalp. Subjects were resupplied with fresh solutions every 6-8 weeks during the trial."
This is an incredibly tiny amount of ZT applied daily. Their concentration suggests only 0.5 mg of ZT is needed in 100 mL of water to make the composition. It would honestly be hard to even measure out this tiny amount. Probably the best way would be to mix 1 litre at a time with 5 mg added to even come close to the correct solution concentration.
I typically have mixed my topical solutions with 20% water. To get the same concentration of ZT into my existing topical, I figure I could add 5 mg ZT to 200 mL water (ie. 5x their concentration), buffer this if needed, and then use that solution as the "water" that I put into my topical base. This would result in a final topical solution concentration again of 0.0005%. It would also avoid requiring any sort of preservative, as I use 20-30% alcohol in my standard topicals, and that works as a perfect preservative already.
This has definitely piqued my interest. I've emailed Luo to see how much he would charge per gram for synthesis of this stuff. If his price is very bad, I'll try someone else. It should be relatively cheap. Like I said, all they have to do is get the thymulin premade from another neighboring factory, test it to confirm structure, add to zinc oxide in vinegar, and then freeze dry it.
Could be a good new growth stimulant. I've always wanted a good peptide in my hair formulations. I also would like the idea of zinc given that we have some people that claim good results with it. This could be good for providing both.