Two part question
How are Copulins made?
Could a woman just smear some of her own fluids on and then add a cover?
I dont know how they are made, but the answer to the second part is yes, she could. If you do a forum search on, I believe, the Cleopatra Effect, there is information about that. I found it interesting reading, though, and maybe there is something there that can help with the first part of your question.
It’s the Cleopatra trick and here is a link
https://pheromonetalk.com/t/simulating-the-cleopatra-trick/49687 for you:
Well they send Steve down the the mall with a paper cups and his silky smooth voice to try to convince ladies to … donate to the cause. 
NO NO Just teasing. Copulins are basically made from lipids and fatty acids.
As somechick pointed out the Cleopatra trick works as long as you still make copulins. If you menopausal or on the pill then your copulin product declines dramatically…thus copulins in a bottle.
Just in case your worried copulins in a bottle are not derived from a human or animal they are synthetically made just like the pheromones.
Tisha
Yes, Just what I needed. This thread answered all of my questions. Thank you!
Thanks Tisha, I read through the entire 7 page Cleopatra thread on Copulins. I now have a better understanding of Copulins than most women do 
Your posts on that thread were particularly informative (as usual).
LMAO! about Steve going to the mall with a paper cup! OMG, that is good!
I also found your responses to that thread to be very informative.
I was also intrigued by the stuff about how we ‘smell’ out a mate that is genetically dissimilar. Strangely, that is one of the things I find most attractive about the guy I am in love with. His smell does it for me like nobody’s business. He doesn’t smell bad or anything, but he just smells ‘right’. Now, there is someone else who is after me in a big way to have dinner with him, as he knows I am actually single, and while he is nice and he is clean smelling, he doesn’t have ‘that’ smell. I found myself thinking about that after he came to see me at work the other night. When he left, all I could think of is, he just doesn’t smell right. Crazy as it seems, i have always thought of the man I want as the One, and for some reason, it is partly because of his smell! And partly because I just know…and no one can tell me I don’t know, because I see dead people…LOL
Very glad you found what you were looking for! I re-read the whole thread, too! It’s very interesting, isn’t it?
Yes, I think that someone just gave the name “Cleopatra’s trick” to the practice of using ones own copulins as a male attractant.
It’s a nice informative thread.
Copulin ? what is Copulins !