In short. Moisturisers, firming creams, collagen supplements, radiofrequency, ultrasound, laser and exercise. What each genuinely does, and the one thing none can do.
Key points
- Removing skin means reducing the amount of skin.
- Every cream, tablet, device, wrap and exercise leaves the area of skin exactly as it was, whatever the surface looks like afterwards.
- If a practitioner cannot say the word excision, they are not offering you a treatment for excess skin.
If you have a fold of skin that hangs, you have probably already been offered something for it. Firming creams, collagen supplements, body wraps, radiofrequency, ultrasound, laser, and a training programme. Each of these does something real. None of them removes skin. Knowing exactly where each one stops is the difference between spending a little and spending a great deal on the wrong thing.
Moisturisers and firming creams
A moisturiser improves the water content of the outer layer of skin. That makes it look smoother and feel softer, and inside a fold it reduces friction and irritation. That is worth doing. What it cannot do is change how much skin there is, and no topical product reaches the collagen and elastin framework deeply enough to rebuild it. A cream claiming to tighten hanging skin is claiming something the tissue cannot do.
Collagen supplements and oral products
Protein in the diet matters for skin, and after a large weight loss many patients are short of it, which is a real problem addressed in its own right. But eating or drinking collagen does not deliver collagen to the place you want it. It is digested like any other protein. No oral product removes a fold, and money spent on them is money not spent on something that works.
Energy devices: radiofrequency, ultrasound and laser
These heat tissue to stimulate new collagen, and they produce a modest tightening of skin quality. Modest is the honest word. They work best on mild looseness and on skin that still has some elasticity, and they are commonly offered after a small weight loss or after pregnancy.
Where the devices stop
On a stretched envelope with a genuine fold they cannot shrink the surface area enough to matter, and no number of sessions changes that. Heat also carries its own risks, including burns and pigment change.
The one thing none of them does
Removing skin means reducing the amount of skin. Only a cut removes skin. Every cream, tablet, device, wrap and exercise leaves the area of skin exactly as it was, whatever the surface looks like afterwards. If a practitioner cannot say the word excision, they are not offering you a treatment for excess skin.
Exercise and muscle
Exercise is worth doing, and after a major weight loss it is one of the most valuable things you can do — for strength, for metabolic health, and for the muscle layer that supports the tissue. Muscle work builds and firms the layer underneath. It does not shrink the skin above it. That is why patients train hard for years and remain unhappy with a fold that never changes.
Be cautious of
- Claims that a product tightens loose skin, sold without any assessment.
- Heat or laser treatment on a fold that is inflamed, broken or infected.
- Payment taken before anyone has examined the skin and named what is wrong.
What actually removes excess skin, and why it is staged, is set out in Staging Body Contouring. The honest limits of the surgery itself are covered in Scars in Body Contouring, and skin quality treatments by colleagues at Dermatology.
Frequently asked questions
Do firming creams do nothing at all?
They do something real and it is worth separating from what they claim. A moisturiser improves the water content of the outer layer, which makes skin look smoother and reduces friction and irritation in a fold. That is a genuine benefit. It cannot change the amount of skin, and no topical product reaches the deeper framework to rebuild it.
Can radiofrequency or ultrasound tighten my skin?
They heat tissue to stimulate new collagen, and they produce a modest tightening of skin quality. Modest is the honest word. They suit mild looseness and skin that still has some elasticity. On a stretched envelope with a real fold they cannot shrink the surface area enough to matter, and more sessions do not change that.
If I build muscle, will the skin follow?
No. Muscle work builds and firms the layer underneath the skin, which is genuinely valuable for strength and for the shape the surgeon works with. It does not shrink the layer above it. This is the most persistent misunderstanding in the field, and it is why patients train hard for years and still have a fold that never changes.
Risks & Limitations
- Long, permanent scars. Where they sit is decided before surgery; they mature over a year but never disappear.
- Seroma, a collection of fluid under the skin, which is common after body contouring and may need repeated drainage.
- Wound healing problems, which are more frequent after major weight loss because of nutritional status.
- Blood clots in the legs or lungs, a rare but serious risk that prevention is planned for.
- Numbness or altered sensation over the treated areas, which may be permanent.
- Asymmetry and contour irregularity, and the possibility of a further stage to refine the result.
- Staging means more than one operation and more than one recovery, and each carries its own risk.
- General risks of anaesthesia and of a long operation, which a hospital setting manages but cannot remove.
When to Seek Care
- Chest pain, shortness of breath, or calf pain and swelling — seek emergency care immediately.
- Rapidly increasing swelling, a tense painful area, or bleeding that does not stop with gentle pressure.
- Fever above 38 °C, spreading redness, warmth, or discharge from a wound.
- Skin in a fold that is red, raw, weeping, foul-smelling or ulcerated and not healing.
- Swelling of an arm or a leg, a new lump, or weight loss you did not intend — all need medical assessment.
References & Further Reading
- American Society of Plastic Surgeons (ASPS) — body contouring after massive weight loss
- International Society of Aesthetic Plastic Surgery (ISAPS)
- American Society for Metabolic and Bariatric Surgery (ASMBS) — post-weight-loss care resources
- National Institute for Health and Care Excellence (NICE, UK) — obesity and body contouring guidance
- Cochrane Library — systematic reviews in body contouring and wound healing
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.