Key takeaways:
- Skin boosters target hydration and tissue quality; fillers add volume and structural contour
- Results build gradually over a course rather than appearing immediately
- Skin boosters, Rejuran and Profhilo are related but not interchangeable
Boosters Versus Fillers
A dermal filler is placed to create shape — projection, contour, structural support. A skin booster is distributed to improve the quality of the tissue itself: hydration, elasticity, and overall skin condition. A filler changes the outline of a face; a booster changes the surface it sits under.
How They Differ From Rejuran and Profhilo
All three sit in the broad "skin quality" category, but the active mechanisms differ. Rejuran uses PDRN to signal tissue repair. Profhilo uses a high concentration of hyaluronic acid for bio-remodelling. Conventional skin boosters focus primarily on hydration and skin condition. See our PDRN explainer for the mechanism detail.
Why Results Take Time
These treatments work by stimulating the skin's own fibroblast activity rather than adding immediate volume. That process follows the body's collagen remodelling timeline — weeks to months — which is why a course, not a single session, is the standard approach.
Who They Suit
Patients whose primary concern is skin quality — dullness, dehydration, fine surface lines, loss of suppleness — rather than volume loss or structural descent. Where the concern is genuinely structural, a booster is the wrong tool regardless of how many sessions are given.
Frequently Asked Questions
Fillers add volume and structure. Skin boosters improve hydration and tissue quality without changing facial contour.
Typically a course spaced over weeks, with the number determined by skin condition and response rather than fixed in advance.
Often yes — they address a different problem from lifting or volume treatments, so they are frequently planned alongside rather than instead of them.
Injection points may be visible briefly. This is typically short-lived, though individual response varies.