
I used this underarm roller to stay free of harmful chemicals in deodorants and perfumes, but it made my underarm darker, and previously I never had dark/pigmented underarms. What do I do now?

I used this underarm roller to stay free of harmful chemicals in deodorants and perfumes, but it made my underarm darker, and previously I never had dark/pigmented underarms. What do I do now?
Blue Star IE512VNURS 1 Ton 5 Star Inverter Split AC (2025, Wi-Fi)
ISEER ~ 5.05
Cooling capacity- 3375W
Voltas 125V Vectra CAW 1 Ton 5 Star Inverter Split AC
ISEER ~ 5.0
Cooling capacity- 3300W
Confused between these two, they are the same price, would appreciate your opinion and personal experience.
Blue Star IE512VNURS 1 Ton 5 Star Inverter Split AC (2025, Wi-Fi)
ISEER ~ 5.05
Cooling capacity- 3375W
Voltas 125V Vectra CAW 1 Ton 5 Star Inverter Split AC
ISEER ~ 5.0
Cooling capacity- 3300W
Confused between these two, they are the same price, would appreciate your opinion and personal experience.