does whey protein work?

hello, i would like to know if whey protein is working well. Thank you in advance for all your answers.

works well ? that is to say ?

well if the whey protein have good effects … (good mass gain yes or no ect …)

it’s not the whey alone that will make you gain mass or lose fat.

sorry I forgot to say that I was working out … (not in the gym but at home) I do it twice a day and 30min sessions.

Whey is made for meso or endo .. In mass gain the doses are not the same as for a dry but as LoganW said it is not what makes you fat or lose weight, food is a factor that matters too.

Whey is made … for all those who want to take it and not just meso or endo.

For ectos who want to gain weight, we don’t give them whey but gainer

what I mean is that whey is useful in post training and its for everyone.

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whey is the protein with a high biological value so yes it is useful for bodybuilding.