I've been using the green bottle Kailin for last 2 years or so. Its nothing that changed the world. The effect dissipates too quickly. Its 20$ for 100ml. I think you are better off hunting for Seamon.
Right now I'm using Haifu Seamoon II, but I used to use Haifu National Black. I've only heard about Kailin since I've only seen it in the green bottle you mentioned, but never used it on my rubbers before.
It works super similar to Seamoon. Seems to be weaker though. Does not give you that much speed.
