Which works best: S-curl texturizers OR Pro-line comb thru texturizer?

I use to run a beauty supply store. I say the s curl. I would use the reg (blue box- first pic) if I were you because they are like relaxers if you have regular hair you want to use med to reg products. Don't use the extra strength because it will make it straight and you will have to strip the hair with vinegar to put it back to reg,