There are a lot of choices, but any of them better than the other? Buying Tide or another foreign brand is expensive.
We use Mas Color and it seems to work well, but don't ask me for details because my husband does all the laundry
Not sure if "Viva" is Mexican per say, but we use the biodegradable one, comes in a blue bag. We pay around 35 pesos for 1 kilo. COSCTO had a nice looking one that was biodegradable, but they sold out before we had a chance to try it. Ps. Yes, I only look for the ones that are kind to the environment