Thermage and Fraxel Combination an Alternative for Facelift?

Magia,
As a dermatologist who has personally performed both of these treatments for more than 5 years, I do not think these will give the same result as a facelift. They are a nice alternative if you do not want to have surgery, or are not a surgical candidate, but Thermage and Fraxel do not make as impressive as a result as an invasive surgical procedure. They are great procedures, however, as Thermage has no downtime and can help firm up the jawline and Fraxel tightens pores and evens out skin texture and tone.
I would consider what your ultimate goal is and go in that direction - surgery if you have more pronounced facial laxity and wrinkling, and non-invasive procedures like Fraxel and Thermage if you are just trying to tighten and even out the skin but don't want or can't have much downtime.

Fractionated Erbium laser resurfacing is primarily to achieve improvement in sundamaged skin to correct pigment and vascular changes. It requires 3 or four sessions. I personally prefer a one procedure treatment with Active Fx, another fractional laser system. Thermage is done once and is a radiofrequency based system that tightens by causing a deep skin injury that results in new collagen formation that takes 3-4 months to occur. Combined they are effective BUT are absolutely not a facelift. They are very useful for the patient who sees early changes of sagging and wrinkling but who is not ready for, or cannot afford, a facelift. In general, younger patients (in their 40's) have the best results with Thermage and Fraxel.