InMode 5 Sessions Still Not Enough? 3 Cases Where It Doesn't Work

Information as of June 2026

The Uncomfortable Truth About Radiofrequency Treatments

• Average 4-6 weeks to feel effects
• 40% reduced response rate for skin thickness below 1.5mm
• Mandatory 3-4 week interval between sessions

Why Haven't I Seen Results After 5 Sessions?

About 30% of people who undergo InMode report not noticing a significant difference even after 3 sessions. If you've given up because the V-line you expected didn't appear after just one treatment, you need to re-evaluate the timing. InMode is not an immediate results treatment.

InMode uses proprietary RF (radiofrequency) technology to deliver heat up to 3-4mm deep into the dermis, causing collagen to contract and stimulating regeneration. It received FDA approval in 2019 and was widely introduced in Korea in 2020. The issue is that results don't appear immediately after the procedure but rather 4-6 weeks later.

This is because it takes at least 3-4 weeks for the dermis, stimulated by heat, to break down damaged collagen and synthesize new collagen. Therefore, judging after just one session might make you feel like you've "wasted money." In reality, remodeling was just beginning beneath your skin at that moment.

Caution Swelling or redness immediately after InMode is a normal reaction. It's actually a sign that the heat stimulus has been delivered effectively. This subsides within 3 days, after which the collagen regeneration cycle truly begins.

3 Cases Where It Doesn't Work: Are You One of Them?

The first is a face with very little subcutaneous fat. InMode works by accumulating heat in the fat layer to shrink it, but if the skin thickness is less than 1.5mm, there's simply not enough target tissue, leading to a response rate that's over 40% lower. If you have a very lean face with skin seemingly just attached to bone, Ultherapy or thread lifting might be more suitable.

The second case is when the intervals between sessions are too short, like 1-2 weeks. Ignoring the collagen regeneration cycle and receiving treatments too frequently can actually overheat the tissue and slow down recovery. The recommended interval is 3-4 weeks; failing to adhere to this can result in only 2-3 sessions' worth of results even after 5 treatments.

The third is severe sagging after the late 40s. While InMode is effective for moderate sagging, it has limitations for severe sagging caused by gravity. If you already have sagging below the cheekbones and deep nasolabial folds, you should first consider thread lifting or a mini facelift surgery.

• Maximum response rate when subcutaneous fat thickness is 2mm or more
• Over 70% satisfaction rate when adhering to 3-4 week intervals per session
• Recommended for InMode alone up to early 40s, with thread lifting combination recommended from late 40s onwards

InMode vs. Ultherapy: Where's the Difference?

Both InMode and Ultherapy are non-invasive lifting procedures, but they differ in their depth of action and target tissues. Ultherapy uses HIFU (High-Intensity Focused Ultrasound) to reach 4.5mm deep into the dermis and the SMAS (Superficial Musculoaponeurotic System), receiving FDA approval in 2009.

InMode's primary mechanism is fat layer contraction, while Ultherapy's core function is SMAS lifting. Therefore, InMode is more suitable for those in their 30s with fuller cheeks and remaining elasticity, while Ultherapy is better for those in their late 40s experiencing gravitational sagging.

In terms of pain, Ultherapy is more intense. The ultrasound can reach the periosteum, causing a stinging and cold sensation, whereas InMode feels more like a prickling and burning sensation, manageable with numbing cream alone. Costs are around 200,000-300,000 KRW per session for InMode and 1,000,000-1,500,000 KRW for Ultherapy.

Clinical Insight According to a 2021 study presented by the Korean Dermatological Association, combining InMode and Ultherapy resulted in a 28% increase in satisfaction compared to single treatments. Targeting the fat layer with InMode and the SMAS with Ultherapy proved effective.

Side Effects: How Common Are They?

The most common side effects of InMode are temporary redness and swelling. You might experience a red and swollen face for 2-3 days after the procedure, which is a normal inflammatory response to heat stimulation. This typically subsides within 72 hours.

Rare cases of burns or pigmentation have been reported. These can occur if the energy settings are too high or if the skin type (melanin density) is not considered. The reported incidence in Korea is around 2-3%, and most cases occur with inexperienced practitioners.

Asymmetry or unevenness can also occur occasionally. Since InMode is a manual procedure (the handpiece is moved by hand), the practitioner's skill significantly influences the outcome. If energy is not delivered evenly, one side might contract excessively.

The risk of nerve damage is extremely low but not zero. The facial nerve runs through areas like the jawline and cheekbones, so depth control is crucial. If numbness or tingling persists for more than 3 days, immediate re-evaluation is necessary.

What You Should Know to Avoid Regret

First, InMode is a maintenance treatment. It's not a one-and-done procedure; after a 3-5 session package, touch-ups are needed every 6 months to a year. Even newly created collagen breaks down over time. You're likely to be disappointed if you're not prepared for ongoing maintenance.

Second, compare with photos. Many people don't notice changes when looking in the mirror. Take selfies from the same angle and lighting before the procedure, and retake them under the same conditions 4 weeks later. You'll likely see a slight lift in your jawline or a slimmer appearance in your cheeks.

Third, home care determines the results. For 2 weeks post-treatment, sun protection (SPF50+) and adequate hydration are essential. If the skin is dry during the collagen synthesis period, regeneration will be slower, and UV rays can stimulate melanin, leading to pigmentation.

Tip Light facial massages starting the day after treatment can help with lymphatic circulation and speed up swelling reduction. However, avoid pressing or rubbing forcefully. Just gently tap with your fingertips.

• Touch-ups needed every 6-12 months after completing a package
• Recommended to apply SPF50+ sunscreen at least twice daily
• Avoid saunas and strenuous exercise for 2 weeks post-treatment

So, Who Is It For?

The ideal candidates for InMode are those in their early to mid-30s concerned about cheek fullness and double chin, but without severe sagging. If you have adequate subcutaneous fat and good skin elasticity, your satisfaction will increase with each session.

Conversely, if you're in your late 40s or older and experiencing significant gravitational sagging, InMode alone may not be sufficient. In such cases, it's more realistic to consider Ultherapy or thread lifting first, and use InMode as a complementary treatment for volume refinement.

If you're considering cost-effectiveness, packages are recommended. A 3-5 session bundle is cheaper per session than single treatments, and the clinic manages the treatment intervals, leading to higher satisfaction rates. However, it's best to receive treatments consistently at one clinic to accumulate energy setting history for personalized adjustments.

InMode vs. Ultherapy vs. Thread Lifting Comparison

What's Right for My Face?

Common Misconceptions

Must-Knows Before Getting InMode

• Discontinue retinol, AHA, and BHA products 2 weeks prior to treatment (to prevent increased skin sensitivity).
• No makeup on the day of treatment; come with only sunscreen applied.
• Avoid saunas, steam rooms, and hot tubs for 72 hours post-treatment (to prevent overlapping heat stimulation).
• Avoid strenuous exercise and alcohol for 2 weeks post-treatment (increased blood flow can worsen swelling).
• Use SPF50+ sunscreen diligently for 4 weeks post-treatment if concerned about pigmentation.

Frequently Asked Questions

This content is for informational purposes only and does not substitute medical advice. Always consult with a specialist before undergoing any procedure.

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