What is more effective glutathione for now

what is more effects than glutathione ?
glutathione injections are effective to whitening skin , but you should know the following :
1. if you are looking to whitening specific area like hyperpigmentation , there is no need to whitening injection and laser treatment is better 
2. glutathione injection need to be constantly injection every 1 - 2 months after first sessions to keep its effect
Risks of using skin whitening injections :
1. may effect the melanin substance that exist in hair or lips 
2. lack of melanin substance could lead to increase skin infection and disease because melanin substance have some defence role in skin system
3. whitening effect will stop directly after stopping using the injections 
Effective ways to whitening skin or whitening special area of skin :
1. using the products that contain hydroquinone ( need some months to see results )
2. using products that contian vitamin A , retein-A , tazarotin ( need some months to see results )
3. using laser treatment to remove black skin or change skin layer ( effective but need more than one session )
4. using nitrogine treatment to remove black skin ( effective but may need more than one session )
5. use whitening injection to whiten the area directly ( immediet effect but not recommanded ) 
Recommanded product to whiten skin :
1. Olay White Radiance Brightening Intensive Cream
2. loreal whiten products 
3. Kaya Pigmentation Reducing Complex
General advices :
1. consider consult a dermatologist first before start looking for medical treatment and follow doctor instrcutions 
2. use sun block products regularly
3. pay attention to personal hygine 
4. always keep you skin moist