Do I need a new pixel for every product on my site even though it’s the same niche?

I tested out a product in the women’s niche on my website this past weekend and it didn’t do the best but I got a decent amount of sales ($650 revenue, lost ~$150 after everything). Im about to run another product in this same niche but am not sure if I should use a new pixel. My metrics were great on those other ads I put out I just think the product was too saturated. Do you guys use a new pixel per product or new one per store?