Skin whitening? fact or spoof?

These days, majority of patients especially ladies above the age of 35 start seeking doctor for treatment for their patchy pigmentation on their face or in general. Its either hydroquinone cream (which is associated with skin cancer if it contains more than 4% and used for prolonged period of time.), then the debatable Vitamin C injection(according to my experience, results tends to be subjective) , and finally vitamin C with glutathione injection.(non, most doctors will tell you its very effective and you're able to appreciate the result within a few days!)
However, if you ask the Doctor how does Glutathione works on skin whitening, he would probably go well, da,,,its,,,da,,its..ba..da...ba.. I'm not too sure, but it works! (wow! Fantastic answer!) Ladies, one piece of advice, if you are going to get treatment for whatever condition, make sure you ask the doctor how the chemical works, or how the regimes works, to ensure you 're being used as a guinea pig for the exchange for your bucks!
Recently I bought this book for the purpose of knowing the mechanics and the physiology of this chemicals, how it functions, what are their properties, any unwanted side effects, etc... Its better to equipped yourself with these knowledge so as i know exactly what i am doing and doing it with a piece of mind.
And i know there are many ladies out there who somehow manage to get their own supply of Glutathione, and eager to bring to a doctor who is willing to inject them into you. My advice is, please don't! I can guarantee non of the suppliers or beauticians who eagerly sell these to you know how they work. Yes, they works! But the point is knowing HOW IT WORKS... any SIDE EFFECTS, ..
Ladies, why would you want to risk several hundred ringgit getting these possible tainted supplies when you can get the original ones from the doctor himself. Even when you see a doctor, ask for the doctor the mechanism of which glutathione works just to make sure he knows what he is doing.
As a doctor myself, I would like to warn the public that there are many half trained doctors who are too eager to jump onto the bandwagon in lucrative field of Cosmetic Medicine.