List of whitening deodorants;
1.Garnier Mineral Light Extra Whitening Deodorant Roll-On: Although, Garnier is not a very known brand when it comes to deodorant. But still this product deserves a spot in this list. The lemon extract does a pretty good job in lighting the complexion of even the darkest underarms. And, the best part about this is that you don’t have to wait for very long to see the results.
There is another whitening deodorant by Garnier, but it is not as efficient. Plus, this one smells very nice too.

2.Dove Whitening Antiperspirant Deodorant Roll-on Original: Dove is quite synonymous to gentle, and it is quite reliable brand specially when you have sensitive skin. Your underarm skin is probably the most rash and burn prone area, that is why, it is prone to get darker.
This is the reason, you have to be very careful while choosing a deodorant. It is probably the best underarm whitening deodorant available, but you have to give it some time to show its effect.

3.Nivea Extra Whitening Pore Minimizer Antiperspirant Deodorant Roll-on: First of all, I would begin by saying that this deodorant is alcohol free.For those of you who don’t know, alcohol dries up skin and a prolong use can damage it, causing the darkening of skin. Apart from alcohol, it doesn’t have color or preservatives. Making it safer to use.
When you shave or pluck you underarm hair, you get these large pores, which destroys the smoothness of your skin. Nivea Extra whitening pore minimizer have double pore minimizer powder in it, which reduces the size of these pores back to normal.

4.Rexona Skin Light Underarm Whitening Deodorant Roll-On: Actually, it depends upon person to person, and also upon how severe your problem is, but you might start seeing results with in two weeks.

As for sweat protection, it is as good as any other antiperspirant deodorant mentioned in this list or probably better depending upon person to person.