RHA Filler vs Juvederm
RHA is the better pick for parts of the face that move a lot. It is a hyaluronic acid filler made to stretch and bend with your expressions, so it suits lines around the mouth and the folds beside the nose. Juvéderm is the better pick when you want firm structure. Its thicker products give more lift in the cheekbone and chin, and the family covers more areas. Both are hyaluronic acid, and both can be dissolved.
What it is
Made with less processing, which leaves the gel softer and more stretchy.
The links between the strands are tighter, which makes the gel hold its shape harder.
What it is best at
Lines around the mouth, the folds from nose to mouth, and lips. It bends with a smile instead of sitting stiff.
Cheekbones, chin and jaw. Voluma is one of the firmer gels on the market and holds a projected shape.
How the family is split
RHA Redensity for fine lip lines, then RHA 2, 3 and 4 as they get thicker and go deeper.
Volbella is the softest, then Vollure and Ultra, with Voluma the thickest for cheeks.
When you see the result
How long it lasts
Depends far more on the area than on the brand.
Thin gels in the lips fade faster. The cheek product can run closer to two years.
Can it be undone
What it feels like
Most RHA gels come with a numbing agent mixed in. Expect a few days of swelling and possible bruising.
The XC versions contain a numbing agent. Same swelling and bruising to plan for.
Side effects to expect
Lumps and small bumps are usually a placement issue and can be dissolved.
Same list. Firmer gels can feel more obvious under thin skin if placed too shallow.
Cost
Usually in the same range as other branded hyaluronic acid fillers.
The thicker cheek products often cost more per syringe than the thin ones.
The at-home or drugstore version
A serum draws water into the top layer of skin for a few hours. RHA is placed millimetres down.
Same molecule, same limit. No cream can put a gel under the skin, so no serum replaces either one.
Who each suits
The real difference is how the gel behaves when you move
RHA is built to stretch: The gel is processed less, so the hyaluronic acid strands stay longer and looser. Under skin that folds and creases all day, that gel moves with the skin rather than resisting it.
Juvéderm is built to hold: Tighter cross-linking makes the gel stiffer, which is what you want when the job is pushing a cheekbone forward or squaring a jaw.
Neither property is better on its own: A stiff gel in a moving lip line can look like a ridge. A soft gel in a cheek can disappear under the weight of the tissue above it. The product should match the job.
For most areas the gap is small
Both are hyaluronic acid and both come from established makers: In the middle of each range the products overlap so much that many injectors pick by feel and habit.
Both can be dissolved, which flattens the stakes: If a syringe of either one goes in badly, the fix is the same enzyme and the same short wait.
Your injector's judgement matters more than the label: Where the product goes, how much of it, and at what depth will change your result more than the brand printed on the box.
Has anyone compared them directly
There is very little head-to-head work: A filler is usually tested in one area, against one other product. Nobody tests brand against brand across the whole face. So when you hear that one collection beats the other, that comes from what injectors see in clinic. It does not come from a trial.
What neither one does
Neither one softens a frown line or crow's feet: Those come from muscle movement, and botulinum toxin is the treatment that works on muscle.
Neither one tightens loose skin: Filler restores volume. If the complaint is sagging, volume is the wrong lever, and adding more of it usually looks heavy.
Before you book
Say what bothers you rather than naming a brand. The area decides the product.
Ask which specific gel they plan to use, and why that one for your face.
Ask how much they expect to use in total, and what that costs.
Book at least two weeks before anything social. Both bruise.
Check they keep hyaluronidase on site. Any injector using hyaluronic acid filler should.
