Yes, many patients feel an immediate change as if the skin is tightening firmly right after the procedure. When RF heat energy is delivered to the dermis, 'collagen denaturation' occurs, where existing collagen fibers contract immediately. As a result, from the day of the procedure, the facial contour may be slightly refined and the skin may feel tense. However, this immediate contraction is only part of the overall treatment result, and the degree of sensation varies individually. Even if the immediate change is not significant, the real effect of Thermage® FLX appears through the subsequent collagen regeneration process, so you can be reassured.
Are There Any Changes Right After the Procedure?
When Does Collagen Regeneration Begin and When Does It Peak?
The intrinsic elasticity improvement from collagen regeneration in the skin usually becomes noticeable around 1 month (4 weeks) after the procedure and reaches its maximum over 3 to 6 months. According to skin histology studies related to RF Lifting, the point at which heat-stimulated cells (fibroblasts) become activated and begin to synthesize new collagen in earnest is approximately 4 weeks after the procedure. As this newly produced collagen accumulates densely in the dermis and undergoes remodeling, skin elasticity, fine wrinkles, and jawline contour gradually improve over several months.
How Do Immediate and Gradual Effects Differ?
The mechanism of action itself is different. The 'immediate effect' is a temporary tightening sensation that appears on the day of the procedure due to physical contraction of existing collagen by heat. In contrast, the 'gradual effect' is an intrinsic skin improvement where new, healthy collagen fills the dermis starting after one month; it appears later but lasts for several months or longer. Therefore, rather than judging the results of Thermage® FLX only by the immediate change, it is more accurate to take before-procedure photos and check the gradual changes at intervals of 1 to 3 months.
What If I Don’t Notice Any Effect?
Thermage® FLX is not a procedure that creates dramatic, noticeable contour changes in the short term; rather, it is a procedure that fills the collagen density in the dermis densely to maintain overall elasticity. From your perspective, looking in the mirror every day, it may be difficult to perceive significant changes in the short term.
Thermage® FLX is like a 'savings account for skin elasticity.' By regularly replenishing collagen every year, it slowly slows down the rate at which the skin ages, helping you maintain a firm and healthy skin foundation compared to your peers even after 5 or 10 years.
In particular, improvements in dermal elasticity and density often do not show clearly in photos. Therefore, rather than looking for drastic changes in photos, it is recommended to pay attention to changes in overall skin texture and tension felt in daily life, such as the skin feeling noticeably firmer and tighter when washing your face after 3 to 6 months, fine lines becoming softer, and makeup applying more smoothly.
If you are looking for an immediate lifting effect that is clearly visible in the mirror or photos, such as overall sagging improvement or contour enhancement, combining HIFU Lifting (Ultherapy PRIME®, etc.) that targets the deep fascial layer depending on skin thickness and structure, or collagen-boosting procedures, may be a more suitable solution.
How Many Months Do the Results Last?
Clinically, the effects of Thermage® FLX usually last about 1 year. The newly generated collagen is well maintained for a certain period, then gradually decreases with the natural skin aging process. In other words, the effect does not suddenly drop off one day but fades progressively. The duration varies depending on individual lifestyle factors such as age, UV exposure, and smoking. Planning maintenance treatments at the 10-month to 1-year mark, when the effect begins to diminish, can greatly help you consistently maintain improved, elastic skin.
