What Are Biostimulators?
Biostimulators are injectable or topically applied agents that stimulate the skin’s natural regenerative processes — primarily collagen synthesis, elastin production, and cellular renewal. Unlike hyaluronic acid fillers that provide immediate volume through gel, biostimulators work gradually by recruiting your body’s own building blocks to restore skin structure.
They are ideal for patients experiencing volume loss, skin laxity, crepey texture, or those who want results that look and feel completely natural because the skin is literally rebuilding itself. Panteha Partovi, PA-C specializes in creating customized treatment plans that layer biostimulators with injectables, polynucleotides, and skin-tightening technologies — addressing volume loss, laxity, texture, and overall skin quality in a single comprehensive approach.
Our Biostimulator Treatments
Each treatment can be used on its own or layered as part of a comprehensive plan tailored to your anatomy, goals, and timeline.
Sculptra (Poly-L-Lactic Acid)
History & FDA Approval: Sculptra (injectable PLLA) was FDA-approved in 2004 for HIV-related facial lipoatrophy and in 2009 for cosmetic correction of nasolabial folds and facial volume loss — one of the most extensively studied biostimulators available.
Mechanism of Action: PLLA microparticles (2–50 microns) act as a scaffold that triggers a controlled foreign-body response, activating fibroblasts to produce new Type I and Type III collagen over 3–6 months. Results build gradually and continue improving long after your final session.
Vials per Session: The general guideline is 1 vial per decade of life as a starting estimate — for example, a 50-year-old patient may need approximately 5 vials across 2–3 sessions. Your treatment plan will be personalized by Panteha at your consultation.
What to Expect: Swelling in the first 24–48 hours is from the saline carrier — not the result. You may look temporarily better, then return to baseline before results gradually appear over 6–8 weeks. Full results are seen at 3–6 months and typically last 2–3 years.
The Rule of 5 Massage: For 5 days after treatment, massage the treated area 5 times a day for 5 minutes each session. This prevents papule formation and ensures even distribution of the product.
Hyperdilute Radiesse (Calcium Hydroxylapatite)
History & FDA Approval: Radiesse (CaHa) was FDA-approved in 2006 for facial wrinkles and folds, and 2015 for hand rejuvenation. Calcium hydroxylapatite is the same mineral found in human bone — making it highly biocompatible and fully biodegradable.
Dual Use — Filler and Biostimulator: Undiluted, Radiesse provides immediate structural volume for nasolabial folds, jawline, and hands, lasting 12–15 months. When hyperdiluted (1:1 or 1:2 with saline/lidocaine), it spreads over a broader surface area and shifts from a volumizer to a pure biostimulator — improving skin quality, laxity, and texture across larger zones.
Mechanism of Action: CaHa microspheres act as a scaffold that stimulates fibroblast proliferation and collagen synthesis as they gradually dissolve over 12–18 months. The surrounding gel carrier resorbs first, leaving the CaHa to do its regenerative work.
Sessions & What to Expect: Typically 1–2 initial sessions. You may notice mild swelling or bruising for 24–48 hours. Skin quality improvements become visible within weeks and continue building over 3–6 months. Especially effective for crepey skin, early jowling, neck laxity, and the “tech neck” appearance.
PDO Serum
PDO (polydioxanone) serum contains the same biocompatible polymer used in dissolvable surgical sutures — but delivered in liquid form for injection or microneedling infusion. It stimulates collagen remodeling through a controlled degradation process, improving skin texture, firmness, and overall quality. PDO breaks down into CO₂ and water — fully absorbed with no residue.
PDO Serum vs. Salmon DNA — How They Compare:
Synthetic polymer
Mechanical scaffold
Structural remodeling
Stimulates collagen via degradation
Collagen stimulation
Fibroblast activation
Fully biocompatible
Enhanced via microneedling
Synergistic results
Biological origin
A2A receptor signaling
Anti-inflammatory
Hydration + regeneration
PDO provides the structural scaffold while Salmon DNA delivers the biological regenerative signal — together, they address collagen from two different pathways for amplified results.
Salmon DNA (Polynucleotides)
Polynucleotides (PN) are high molecular weight DNA fragments derived from salmon sperm — a naturally biocompatible source with a structure nearly identical to human DNA. At Santosha Aesthetics, we use pharmaceutical-grade PN that is sterile, injectable, and sourced from certified Korean laboratories. Unlike diluted PDRN, our PN delivers deeper, longer-lasting skin regeneration.
Mechanism of Action: PN molecules bind to adenosine A2A receptors on fibroblasts, activating a cascade that promotes tissue repair, reduces inflammation, stimulates collagen and elastin production, and deeply hydrates from within. This biological signaling pathway is distinct from other biostimulators — making PN a powerful complement to PDO, Sculptra, and RF treatments.
Best For: Under-eye rejuvenation, skin quality improvement, acne scarring, fine lines, crepey skin, dehydrated skin, and overall regeneration. Works beautifully as a standalone or layered with PDO serum during microneedling for synergistic collagen induction from two independent pathways.
Learn more on our dedicated Salmon DNA & PN page.
Radiofrequency (RF) Skin Tightening
Pelleve is a 4-MHz continuous monopolar radiofrequency device that delivers electromagnetic energy deep into the skin. The current heats at the dermal-subdermal junction — where the transition from low-resistance dermis to high-resistance subcutaneous fat converts kinetic energy into controlled thermal energy. The skin surface is brought to a target endpoint of 40–42°C, the threshold at which existing collagen fibers contract immediately for visible tightening, and fibroblasts shift into an activated, regenerative state. New collagen formation continues gradually for up to 6 months post-treatment.
Why RF Enhances Biostimulator Results: RF creates a pro-healing environment with elevated growth factor (VEGF, TGF-β, bFGF) release and increased local vascularity. This primes fibroblasts into an activated, receptive state — making your skin significantly more responsive to Sculptra, PN, PDO, and Radiesse. Multiple peer-reviewed studies in the Journal of Cosmetic Dermatology and Dermatologic Surgery demonstrate superior outcomes when RF is combined with injectable biostimulators compared to either treatment alone.
Best For: Jawline definition, neck laxity, “tech neck,” overall skin firmness, and as a catalyst treatment before or alongside injectable biostimulators.
The Power of Layering
What sets Santosha Aesthetics apart is Panteha’s expertise in combining treatments for results greater than the sum of their parts. Each modality targets a different layer of the aging process — together, they create a comprehensive transformation that no single treatment can achieve alone.
Pelleve monopolar RF heats the skin surface to 40–42°C, activating fibroblasts and triggering an inflammatory cascade (VEGF, TGF-β, bFGF) that primes the tissue to be more receptive to every biostimulator below. Panteha uses Pelleve in conjunction with all of her biostimulator treatments — not just one.
Sculptra + Hyperdilute Radiesse
Deep volume restoration and structural collagen rebuilding across the full face and neck. RF primes the tissue before injection for superior uptake.
Salmon DNA + PDO Serum
Cellular repair, hydration, and collagen induction through dual biological and mechanical pathways. RF-activated fibroblasts amplify the regenerative signal.
Exosomes
Nano-sized vesicles that carry growth factors between cells, accelerating healing and supercharging the collagen response from every treatment above.
The science behind layering: Pelleve RF brings the skin surface to 40–42°C, triggering an inflammatory cascade that releases VEGF, TGF-β, and bFGF — increasing blood flow and priming fibroblasts into a heightened, receptive state. Sculptra, Radiesse, Salmon DNA, and PDO Serum injected into this primed tissue integrate more effectively and produce superior collagen outcomes compared to injections without RF preconditioning. Exosomes then accelerate cellular communication and amplify the regenerative response across all modalities.
Supporting Research: RF + PLLA combination studies · RF + biostimulator synergy research · Exosomes in skin regeneration · Gemza & Surgiel-Gemza (2024) — Powdered polydioxanone: synthetic polymer that stimulates formation of collagen in aging skin. Aesthetic Cosmetology and Medicine.
Who Is a Good Candidate?
Biostimulator treatments are ideal for a wide range of patients:
- Anyone experiencing gradual volume loss or facial hollowing
- Patients with skin laxity on the face, neck, or décolletage
- Those wanting natural, progressive results rather than immediate volume
- Patients looking to extend or enhance existing filler treatments
- Anyone seeking a long-lasting alternative to repeated filler injections
Panteha will assess your unique anatomy and skin condition during your consultation and design a plan specifically for your goals — whether a single treatment or a comprehensive layered approach.
Why Choose Santosha Aesthetics?
Panteha Partovi, PA-C brings a multi-specialty background and a deep commitment to results-driven, individualized care. At Santosha, you will never receive a one-size-fits-all protocol.
Panteha takes the time to understand your unique anatomy, skin condition, and aesthetic goals — designing a layered biostimulator plan that works with your biology, not against it. Every treatment is backed by advanced training, pharmaceutical-grade products, and an unwavering focus on natural-looking results.
Located in Beverly Hills at 8500 Wilshire Blvd, Suite 615.
Frequently Asked Questions
What is the difference between biostimulators and dermal fillers?
How long do biostimulator results last?
Can biostimulators be combined with fillers?
How many sessions of Sculptra do I need?
What areas can be treated with biostimulators?
Is there downtime with biostimulator treatments?
How much do biostimulator treatments cost in Beverly Hills?
Rebuild Your Skin's Foundation
Book a consultation with Panteha at Santosha Aesthetics in Beverly Hills to discover which biostimulator treatments — or combination approach — is right for your skin goals.
