Which one is better: biosilk therapy or tresemme heat protectant spray?

i want to straighten my hair like everyday. which one should i buy? biosilk therapy or tresemme heat protectant spray? and also, will the tresemme heat protectant make my hair look shiny because the biosilk does.

Which one is better: biosilk therapy or tresemme heat protectant spray?

I would use Biosilk

Which one is better: biosilk therapy or tresemme heat protectant spray?

i like anything that has "silk" in it...i use silk drops on my hair...just two drops...rub it between your hands till it's warm then work it midway to the ends through your hair...it is great for hair that's a little dry, or just needs more shine...