Using Glutathione Injections or Supplements?

Hi, I'm south asian and 22 years old. I've a light yello-olive skin tone.I've been using pure Vitamic C cream every morning to get a better skin color and to have an even complexion. I've heard glutathione really helps with skin color especially if taken as an injection coupled with Vitamin C. Is it safe to take? and how effective is it?

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