For those of you who have had anti-aging injections, how long do the effects last?

I've been feeling really tired lately and just can't seem to go away, so I'm looking into anti-aging injections. It turns out more people get them than I thought.

At first, I thought they were just like regular vitamin shots, but I'm actually tempted because people who get them consistently say there's a noticeable difference in their skin tone and condition.

However, there are so many different types of anti-aging injections, and I'm not sure which one is the safest bet.

Is there a big difference between the ones containing glutathione and the stem cell ones?

I heard it's not a one-time thing but requires periodic treatments, so I'm curious about the typical interval between them.

If you know of any good places for anti-aging injections, please recommend them!