About this procedure
What they are
Unlike fillers (which physically add volume) or skin boosters (which hydrate), collagen stimulators work by triggering your skin’s own cells to produce new collagen over time. This means results build gradually and tend to look very natural, since you’re regenerating your own tissue rather than adding a foreign substance for volume.
How the procedure works
Common types
Poly-L-lactic acid (PLLA) — e.g., Sculptra
Calcium hydroxylapatite (CaHA) — e.g., Radiesse
Polynucleotides (PN) / PDRN — e.g., Rejuran (also counted as a "booster" by some, since it does both hydration and stimulation)
Polycaprolactone (PCL) — e.g., Ellansé
Step-by-step procedure
- 1
Consultation — practitioner assesses areas of volume loss or skin laxity (commonly cheeks, temples, jawline, under-eyes)
- 2
Cleansing & numbing — area is cleaned; topical or local numbing applied since needles go a bit deeper than skin boosters
- 3
Injection — product is injected into the deeper dermis or subcutaneous layer using a needle or cannula, often in a fanning or grid pattern for even distribution
- 4
Massage — area is massaged to distribute product evenly and avoid lumps (especially important with Sculptra/Radiesse)
- 5
Aftercare — you may be told to massage the area yourself for several days post-treatment to help even distribution
What happens after treatment
Immediately: the area may look slightly more "full" right after — this is mostly from the injection fluid itself, which subsides within days
First few weeks: little visible change as the product is just sitting in the skin
Weeks to months: your body gradually builds new collagen around the product, slowly improving firmness and volume
Full results: often take 2–3 months, sometimes longer, since it relies on your body’s own collagen-building process
Why people choose this approach
Gradual, natural-looking results — no sudden change, just steady improvement
Improves skin quality, not just volume — firmer, thicker skin over time
Longer-lasting than traditional fillers — often 1–2+ years, since you’re rebuilding tissue, not just filling space
Good for overall facial rejuvenation — commonly used for sunken cheeks, temple hollowing, jawline support, or overall skin laxity
Typical treatment plan
Usually given as a series of 2–3 sessions, spaced 4–6 weeks apart
Results build cumulatively with each session
Maintenance treatments every 1–2 years are common
Benefits
Collagen Stimulators — Benefits
Gradual, natural-looking results — no sudden change, builds over time
Stimulates your own collagen — improves skin from within, not just adding filler
Improves skin firmness & thickness, not just volume
Longer-lasting than traditional fillers — often 1–2+ years
Restores volume in sunken areas (cheeks, temples, jawline)
Improves overall skin laxity for a more supported, youthful look