Regenerative Aesthetics Explained: PRP, Polynucleotides and Biostimulators
“Regenerative aesthetics” has become one of the most talked-about areas in the field, but the term covers a group of quite different treatments united by a single idea: rather than filling or freezing, they aim to stimulate the skin’s own repair processes to improve quality, firmness and texture over time. For practitioners, the appeal is obvious — and so is the need to separate genuine mechanism from marketing.
Platelet-rich plasma (PRP)
PRP is produced by drawing a patient’s blood and centrifuging it to concentrate platelets, which release growth factors thought to support tissue repair and collagen formation [1]. It is most commonly used for overall skin rejuvenation and is also studied in hair restoration.
Two points matter clinically. First, preparation is not standardised — spin protocols and final platelet concentrations vary widely between systems, which makes results harder to compare across studies. Second, because PRP is autologous, strict attention to blood-handling, labelling and sterility is essential. Practitioners should treat PRP as a medical procedure, not a cosmetic add-on.
Polynucleotides
Polynucleotide products, derived from purified DNA fragments, have gained popularity for improving skin hydration and elasticity. They are proposed to act as a scaffold that supports fibroblast activity and tissue repair. The evidence base is growing but still maturing, so honest communication about the strength of the data — and the need for a course of treatments — is important when counselling patients.
Collagen biostimulators
Biostimulators work differently from traditional fillers. Rather than adding immediate volume, they trigger a controlled response that stimulates the patient’s own collagen over weeks to months:
- Poly-L-lactic acid (PLLA) is used for gradual, global restoration of volume and skin quality, typically over several sessions.
- Calcium hydroxylapatite (CaHA) provides some immediate structure while also stimulating collagen.
Because the effect builds gradually, patient education is central: results are progressive, not instant, and correct reconstitution, injection depth and, for some products, post-treatment massage all influence outcomes and safety.
Setting realistic expectations
Regenerative treatments improve skin quality; they are not a substitute for structural volumising or for muscle-related lines. The best candidates are patients seeking gradual, natural-looking improvement in texture and firmness who understand that a course of sessions — and maintenance — is usually required. Over-promising is the fastest way to an unhappy patient, even after a technically flawless treatment.
Safety and training
The injectable nature of these treatments means the same core safety knowledge applies as for any facial injection: sound anatomy, sterile technique, appropriate product handling, and the ability to recognise and manage complications. Regenerative treatments are best learned in a structured, hands-on setting where a practitioner can see real cases, understand candidate selection, and practise technique under supervision before treating independently.
References
- Alves R, Grimalt R. A review of platelet-rich plasma: history, biology, mechanism of action, and classification. Skin Appendage Disorders. 2018.
- European and national aesthetic-medicine consensus guidance on biostimulatory injectables (general reference).
This article is educational and does not replace formal, supervised clinical training or local regulatory requirements.