Is the NMN booster good?

I heard that NMN Booster is popular among celebrities these days and is great for inner radiance, so I'm curious about it!

I heard that it awakens the energy within our bodies and infuses the skin with a highly concentrated ampoule that is good for anti-aging.

I'm so curious about the effects!

Has anyone tried this?

I heard it doesn't hurt much because it's not an injection but rather absorbed by rubbing or using a fine needle. Is that true?