My skin is extremely dry and flaky due to internal dryness. Would Skin Botox or Hydro-Glow injections be effective?

I am writing to inquire because, even though it is summer, my skin feels strangely parched deep inside and oddly rough on the surface. Working in an office with the air conditioner on all day makes me feel like all the moisture is evaporating from my skin. Immediately after washing my face, it feels tight as if it is tearing, and white flakes of dead skin appear around my nose and mouth. Since my skin texture has become bumpy and rough, my makeup looks cakey and cakey, so I am very self-conscious every time I go out. No matter how much moisturizer I apply, it only works temporarily, and it feels like the moisture isn't penetrating deep into my skin but just sitting on the surface. I am curious about effective injections or skin treatments that can instantly replenish the inner dryness caused by the air conditioning and heat, and neatly smooth out the flaky dead skin cells!