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Dr Marc-Kevin Le Roux

Polynucleotides

Polynucleotides (PN) are biostimulatory gels made from highly purified DNA fragments that signal skin to repair, rehydrate and regain elasticity. They don’t add volume like fillers; instead, they improve texture, fine lines, and resilience, especially in delicate areas such as the under-eye and perioral skin.

What polynucleotides can (and can’t) do

Can help with:

  • Crepey or finely wrinkled skin (under-eye, cheeks, neck, décolleté)
  • Elasticity loss and dullness with poor light reflection
  • Post-inflammation texture and mild acne-scar quality (as part of a protocol)
  • Skin that need quality improvement

Cannot replace:

  • Structural volume (see Dermal Fillers)
  • Significant laxity (consider Collagen Stimulators or Facelift & Neck Lift)
  • Pigment conditions alone (pair with Chemical Peels / skincare)

Who is a good candidate?

  • Skin-quality concerns: thin, crepey or tired skin rather than a volume deficit
  • Fine lines of the under-eye, neck or décolleté seeking repair and elasticity
  • A desire for gradual, natural change without altering facial shape
  • Good general health; non-smoker preferred for optimal repair

If your main concern is volume loss or advanced laxity, other solutions (dermal fillers, collagen stimulators or a facelift) may suit you better; I'll guide you.

Technique (what to expect)

  • Micro-aliquots placed intradermally/subdermally using fine needles; a soft cannula may be used to blend delicate zones (e.g., tear-trough extension areas)
  • Conservative first session with measured volumes; symmetry checks and gentle molding
  • Optional topical anaesthesia for comfort

Time in clinic: ~20–30 minutes.

Back to routine: immediately; small blebs/redness typically settle within 12–24 h.

Aftercare & timeline

  • Avoid rubbing, sauna/steam, strenuous exercise for 24 hours
  • SPF 50+ daily; pause facials/laser until advised
  • Gentle barrier-support skincare for the first days

Onset: subtle improvement from 2–3 weeks

Peak: 6–12 weeks as collagen/ECM remodeling develops

Typical duration: 6–12 months (area/product/metabolism dependent)

Course & longevity

Most patients benefit from 2–4 initial sessions spaced 3–4 weeks apart, then maintenance every 6–9 months. Under-eye and neck often prefer slightly closer maintenance in the first year.

Candidacy & safety

Polynucleotides are one of the safest treatment with no serious side effects ever reported.

Ideal for patients seeking quality, elasticity and glow without changing facial shape.

We defer treatment in pregnancy/breastfeeding, with active infection, or in uncontrolled inflammatory skin disease. History of fish/seafood allergy is discussed (source-purification varies; not always a contraindication, but disclose it).

Possible effects: transient redness/blebs, pinpoint bruises, mild swelling/tenderness, temporary dryness/tightness. Nodules are uncommon and usually settle with massage/time; strict asepsis and correct plane placement minimise risks.

Smart combinations (case-by-case)

  • Skin Boosters for deep hydration and improved light bounce
  • Mesobotox to reduce pores/shiny T-zone while PN improves texture
  • Chemical Peels for tone/pigment; schedule around PN sessions for predictable downtime
  • Collagen Stimulators when true firmness (not just elasticity) is the main issue
  • Dermal Fillers

FAQs

Polynucleotides vs Skin Boosters—what’s the difference?

Boosters are non-volumising HA for hydration and glow; PN focus on repair and elasticity with collagen/ECM support. They pair beautifully.

No. They are biostimulatory; the benefit comes from your skin’s response, not from added volume.

Often, yes—when laxity and crepiness dominate. We first assess edema/festoons to avoid puffiness.

Typically 2–4 to build effect, then maintenance every 6–9 months.

Expect a gradual change—first improvements by 2–3 weeks, best at 6–12 weeks.

Results

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