Ask around the clinics of Chiswick High Road and you will hear both product names used in the same sentence, usually in answer to the same patient question: what can be done about skin that has lost quality rather than volume. The two products are genuinely useful and they are genuinely different, and conflating them is the most common source of disappointed expectations in this part of the west London market.
They are not the same kind of product
Radiesse is an injectable whose active component is calcium hydroxylapatite microspheres suspended in a gel carrier. When placed in tissue, it provides some immediate structure from the carrier, and then, over the following weeks and months, the microspheres act as a scaffold that stimulates the body's own collagen response. The visible effect at three months is largely the patient's own tissue rather than the product. Diluted and placed more superficially, it is used across areas such as the neck, the chest and the backs of the hands as a skin quality treatment rather than as a volumising filler.
Belotero is a range of hyaluronic acid products with different rheological properties for different purposes, from fine-line products designed to integrate very superficially through to firmer products for structure. Within the range sits a skin booster style formulation aimed at hydration and skin quality rather than at shape. Hyaluronic acid attracts and holds water, and the treatment effect is a combination of that hydration and a milder stimulation of the tissue around it.
The practical distinction patients most need to grasp is reversibility. Hyaluronic acid products can be broken down with hyaluronidase, which means a result can be adjusted or, in an emergency, dissolved. Calcium hydroxylapatite cannot. That single fact should shape how conservatively a first treatment is approached, particularly in an area where the anatomy is unforgiving.
Comparing them properly
| Radiesse | Belotero | |
|---|---|---|
| Material | Calcium hydroxylapatite in gel carrier | Hyaluronic acid, several formulations |
| Primary mechanism | Collagen stimulation over weeks to months | Hydration and tissue integration |
| Immediate effect | Partial, from the carrier | Yes, varies by formulation |
| Peak effect | Around 8 to 12 weeks | 2 to 6 weeks |
| Reversible | No | Yes, with hyaluronidase |
| Typical use in west London | Neck, chest, hands, jawline support, skin quality | Fine lines, hydration, superficial skin quality |
Which concern suits which product
The useful way to choose is not by brand but by what is actually bothering you.
- Crepey skin on the neck, chest or hands. A diluted biostimulatory approach is often the better fit, because the problem is structural laxity in the dermis rather than dehydration. Expect a slow result and expect to be judged at three months.
- Dull, dehydrated skin with fine surface lines. A hyaluronic acid booster formulation generally suits this better, and it will show something sooner.
- Very fine, superficially etched lines. This is where the more delicate hyaluronic acid formulations are designed to work, precisely because they integrate without creating a visible ridge.
- Genuine volume loss. Neither product in booster form addresses it. That is a structural filler question, and a practitioner who reaches for a skin quality product to solve a volume problem has misread the assessment.
Combination is common and reasonable. A plan that uses a biostimulator for structure and a hyaluronic acid booster for surface quality, staged over months rather than delivered in one appointment, is a normal west London treatment plan and usually a better one than either used alone.
Choose by what is wrong with the skin, not by which product the clinic happens to stock.
Prices in Chiswick and west London
West London pricing sits below Marylebone and above the outer suburbs, and both product categories are priced per syringe or per treatment area rather than per unit. Indicative 2026 ranges in W4:
| Treatment | Indicative range | Typical course |
|---|---|---|
| Biostimulatory injectable, one area | £400 to £700 | 1 to 2 treatments, then annual |
| Hyaluronic acid skin booster | £250 to £450 per session | 3 sessions, then 6 to 9 monthly |
| Combined plan, first year | £900 to £2,000 | Staged across months |
| Consultation | £0 to £100 | Often redeemable |
Compare on the twelve-month cost of the plan rather than on the price of a syringe. A biostimulator treatment that costs more up front but lasts a year can be better value than a booster course repeated three times, and the reverse is true if what you actually needed was hydration.
What safe practice looks like for both
Both are injectable procedures with real risks, including bruising, swelling, nodules, infection and, rarely, vascular events. Two things reduce risk more than anything else: the practitioner's anatomical knowledge, and their candour about which product suits your problem.
Before a first treatment, establish who is treating you and verify them on the GMC or NMC register, or check the JCCP and Save Face registers. Ask to see the product packaging. Ask what happens if you develop a nodule at six weeks, because that is a specific and answerable question about a specific and recognised complication. And for any hyaluronic acid treatment, confirm that hyaluronidase is held on the premises and that the practitioner can describe the vascular occlusion protocol without pausing.
For calcium hydroxylapatite specifically, ask directly about placement depth and about the areas the practitioner will not use it in. The absence of a reversal option means the margin for error is narrower, and a practitioner who has clear rules about where they will and will not place it is demonstrating exactly the judgement you are paying for.
The west London context
Chiswick's aesthetic market is built on repeat local custom, which tends to produce conservative dosing and slow, staged plans, and both products are well suited to that approach. Clinics along the High Road and in the surrounding streets typically offer both categories, and practitioner-led practices in the area, including Dr Harry Clinic, work in this staged manner rather than delivering everything in a single visit. For patients, the practical advantage of the neighbourhood model is that review appointments are easy to attend, which matters a great deal for treatments whose result is judged at eight to twelve weeks rather than on the day.
If your case involves correcting a previous result, particularly a nodule or an unexpected contour from a non-reversible product, the diagnostic density of central London is worth the journey. For a first, conservative, staged plan in a patient with no complicating history, Chiswick is one of the better places in the city to have it done.