Tresemme is really good FOR WHAT? Protecting your hair? Holding curls? Making your hair stiff? What exactly does Tresemme does that's good for the hair?
The hair industry is a billion dollar business, they sell products that cleans & condition the hair. They also sell products that damage and causes hair loss. They also DO NOT give money back guarantee for damaged hair or hair loss due to 'abuse'. Any product is good for the hair, if they're not abused. The hair industry's aim is to make tons of profits. Shampoo is meant to clean (Google it), and if they do other things like GROW or VOLUME, or SMOOTHER, they're lying. It's all about marketing to attract more buyers.
Heat protectant doesn't protect hair 100%, no matter what brand, or whatever it says on their labels. Like sunscreen, you still get sunburned. Same with hair.
You get volume for your hair, in how you manipulate them with blow-dryer, curlers, plastic curlers, & hair brush. ANY hair products can also make hair flat if they're heavily used.