Its not quite easy to change your skin color but skin bleaching is the most effective way of whitening your skin is none else but using a skin whitening lotion or serum which reduces or blocks the melanin production. Melanin is the reason behind darker skin. So skin whiteners contain substance like Hydroquinone, mercury and alpha hydroxy acids, which inhibits the production of melanin. Do not go for the laser skin whitening treatment. It has several side effects.
I believe the use of topical skin whitening solutions is effective. Glutathione injections and skin whitening pills may be too risky for some, though they are said to be effective too. There are many skin whitening creams available, so people need to choose carefully. Consumers must pick those that are safe to use, free from harsh stuff like hydroquinone. Right now, I'm using Whiterderm to even out my skin tone and it's been working quite well. I chose it because it's made from safe and natural ingredients.
There are some very advanced skin whitening products that are safe and very effective.
Follow the instructions step by step and you will be safe
First, you should drink plenty of water which is the sweeper of your bowel. And use some frost to make your face moist . Besides these , the most important is having enough sleeping for that will gives you the deepest supply.
I'm not sure about stronger, but you can always make your skin lighter with whitening products. There are plenty sold these days, both online and off. You have more than enough options to choose from. If you choose whitening creams, make sure they are safe to use, meaning they don't contain harmful substances like hydroquinone. Creams like Whiterderm are free from ingredients like those.