I want to start TIKTOK SHOP UK as I am based in UK, can experienced people suggest how can I start with low investment? Also from where to get the products? Or do we use product hunting tools in Tiktok too?
Need guidance
Yes, product research is important for TikTok Shop as well.
You can source products from Alibaba, UK wholesalers, or local suppliers. I would recommend starting with trending, problem-solving products and validating demand through TikTok trends before investing heavily in inventory.
First of all register the ltd then on ltd details create the TikTok shop seller centre account and verify it with your UK driving license or UK passport. And then with low investment do drop shipping through Amazon.
TikTok shop is rapidly growing,
You can start with low budget just to test the products and get products from China,
This is called white label and white label is recommended on TikTok shop, not dropshipping.
Also, you can use Kalodata tool for product hunting.
Good luck 
You need to start 5 product test and trial phase and start to scale those products getting good sales.