I know there's one, but it doesn't state where you can find the recipe for ^^ Unless you can create it without finding somebody/something that give you the exact recipe.
you can make it without someone telling you how to. there's also a guide to where you can find the materials. you just need to craft the potions over and over again to actually mastered and insta crafting the potions.
In game you can learn reptile lure back at home under the study section, but only after you finish the quest for the witch where you bring her a raptor.
Well, I used all my lures before dying against a raptor for the quest, because I had the greatest idea to not make health potions, so I don't have any lures anymore x)
You should be able to buy more reptile's lure from the witch, in case you weren't able to catch raptor with those items you get from her. So unfortunately now you have to spend some coins to have another chance.
Yeah, and they're expensive !! x) But it's ok, I got the recipe with the guide, so now I can craft them. There's just the vine swamp that are hard to get from the swamp creatures. At least, we can buy some from the witch too