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This article is intended for qualified aesthetic practitioners and prescribers. It is not patient advice.
Hip dip filler is one of the more frequent body requests reaching UK clinics, and it is also one of the easiest to get wrong. The short answer for practitioners: hip dips are largely a skeletal and soft-tissue feature, so filler can soften the transition between the iliac crest and the greater trochanter in well-selected patients, but only with a body-specific product, a subcutaneous plane, a blunt cannula and a frank conversation about volume, cost and longevity. This post walks through assessment, product choice, technique, complications and the regulatory direction of travel so you can decide whether the treatment belongs on your menu.
Patients usually arrive believing hip dips are a fat or fitness problem. Most of the time they are not. The depression sits on the lateral hip, between the iliac crest above and the greater trochanter of the femur below. Its depth depends on pelvic width, the height and projection of the trochanter, femoral neck geometry, where the patient stores subcutaneous fat, and how firmly the skin is tethered to the underlying fascia over the lateral hip.
That has two practical consequences. First, exercise and weight change rarely remove a structural dip. Second, filler is camouflage, not correction. You are adding volume into the subcutaneous layer to blur a contour step that the skeleton created.
Facial fillers are the wrong tool here. The lateral hip is a large, mobile, load-bearing area, and the volumes involved make facial syringes impractical and expensive. Practitioners generally choose between two routes.
Body contouring HA gels are formulated with larger particles and a firmer, more cohesive structure than facial products, and they come in larger presentations. HYAcorp Body Contouring MLF2, for example, is supplied as a 10 ml syringe of cross-linked, non-animal HA at 20 mg/ml with a stated particle size of 300 to 500 µm, and its product information lists buttock contouring and the correction of concave deformities among its uses. The appeal of HA in this area is that the result is immediate, the product can be moulded during the session and, if something goes wrong, it can be dissolved.
The trade-offs are cost and duration. Body HA is broken down faster in a mobile area than in the face, and the manufacturer information for MLF2 describes results lasting several months rather than years, with variation by patient, technique and lifestyle. Build that into your consultation and your pricing model so a patient is not surprised by the need for top-ups.
You can compare the current range on the body fillers collection.
Poly-L-lactic acid and similar biostimulators appear frequently in UK clinic marketing for hip dips. The change is gradual over a course of sessions, which suits patients who want a subtle shift and dislike the idea of a sudden visible bulk. The catch is that the response is less predictable in volume terms, it cannot be reversed, and nodule risk rises with poor reconstitution, inadequate dispersion or overly superficial placement. Before using any product off the face, check that the instructions for use cover the body area you are treating, and document any off-label use clearly in your consent. The PLLA stimulators collection lists the products currently stocked.
The single most important technical decision is the plane. Hip dip filler belongs in the subcutaneous layer, above the deep fascia. Deeper injection into the gluteal musculature brings product close to the gluteal vessels, and the gluteal region is where injectable body procedures have caused the most serious harm. There is no aesthetic reason to go deep in this area.
Most practitioners use a long, relatively wide-bore blunt cannula, in a range of around 18G to 22G depending on the viscosity of the product and the patient’s tissue. A longer cannula lets you treat the dip from one or two entry points placed outside the depression, which reduces the number of punctures and keeps the entry wounds away from the area of greatest product load. Have a look at the cannulas collection for longer lengths and wider gauges suited to body work.
Volume depends on dip depth, tissue thickness and the product, and it runs to multiple millilitres per side, far beyond facial work. Many practitioners stage treatment across two sessions, which lets swelling settle, gives a truer picture of symmetry and avoids overloading thin tissue in one sitting.
Patients searching for hip dip fillers side effects tend to find either reassurance or horror stories. Your consent process should sit between the two and be specific to the product and plane you use.
Write post-treatment advice for the body specifically. Facial aftercare sheets do not cover compression, sleeping position, gym return or what to do if one side feels hot and painful days later.
On 6 August 2025 the Department of Health and Social Care announced plans to restrict the highest-risk cosmetic procedures, including non-surgical Brazilian butt lifts, to suitably qualified healthcare professionals working in CQC-registered providers, with lower-risk treatments such as facial dermal fillers moving into a local authority licensing system (GOV.UK announcement). The announcement described these measures as subject to further consultation and Parliamentary scrutiny, so check the current status before relying on any particular threshold.
Hip dips sit right next to the gluteal region, and patients frequently request hip and buttock work in the same appointment. Even where the rules are still being finalised, it makes sense to treat body filler as a higher-risk service now: confirm your indemnity explicitly covers body areas and volumes, document training specific to body injection, and keep records detailed enough to stand up to scrutiny.
It depends on the product, volume, plane and patient. Body HA in a mobile area generally lasts months rather than years, and manufacturer information for body contouring gels such as HYAcorp MLF2 reflects that. Set expectations for maintenance at the consultation, not at review.
No injectable is risk-free. Risk is lowest when a trained practitioner uses a product intended for the body, stays in the subcutaneous plane with a blunt cannula, follows strict asepsis and has a complications protocol ready. Deep injection near the gluteal muscles is where serious harm has occurred with body injectables, so avoid it.
Far more than for any facial area. Volume is driven by dip depth and tissue thickness and is commonly measured in multiple millilitres per side. Staging over two sessions gives more control and a better read on symmetry.
HA gives an immediate, adjustable and dissolvable result but needs maintenance. Collagen stimulators give a gradual change that some patients prefer, though they are less predictable and cannot be reversed. Check each product’s instructions for use for body indications before choosing.
Fat transfer is a surgical procedure with donor-site harvest and longer recovery, and it falls outside the scope of a non-surgical clinic. For patients who want a non-surgical, lower-commitment option, filler is the usual starting point. Refer patients who want a longer-lasting, larger-volume change for a surgical opinion.
Hip dip filler works best as a contour-blending treatment for patients with realistic expectations, enough subcutaneous tissue and a clear understanding of maintenance. Assess standing, choose a product built for the body, keep to the subcutaneous plane with a blunt cannula, stage larger corrections and treat the service as a higher-risk offering for consent, insurance and record keeping. Done that way, it can be a sensible extension of an experienced injector’s practice rather than a liability.
