Polynucleotide Aftercare: How to Support Skin Recovery and Boost Results
So, you’ve just invested in polynucleotide treatment (also known in the press as “salmon sperm injections” and you’re ready to see that radiant, plump, refreshed skin start to shine through. Great choice – regenerative injectables like these are quickly becoming one of the most talked-about ways to future-proof your skin.
But here’s the thing: even the most advanced injectable relies on how you look after your skin afterwards. Think of it like going to the gym – the trainer can guide you through the workout, but you’ll only see the results if you eat well, rest, and stick to the plan.
With the right aftercare, you can minimise downtime, keep your skin calm, and boost those long-term benefits. Let’s walk through exactly what to expect and how to give your skin the TLC it deserves post-treatment.
What Happens After Polynucleotide Injections?
Immediately after your polynucleotide injections, you might notice:
- A little redness or swelling around the injection sites
- Tiny raised bumps where the product was placed
- Mild tenderness, like a pinprick sensation
These are all perfectly normal and usually settle within 24–48 hours. In fact, many people feel comfortable returning to work or social plans the same day. Unlike more invasive treatments, polynucleotides are designed to integrate smoothly into the skin with minimal disruption.
Short-Term Aftercare: The First 48 Hours
The first couple of days are when you’ll want to be extra kind to your skin. A few golden rules:
- Hands off – Avoid touching or rubbing the injection sites. This reduces the risk of irritation or infection.
- Skip the sweat – Hold off on the gym, saunas, hot yoga or anything that raises your heart rate too much. Increased circulation can interfere with how the product settles.
- Stay upright – No lying face down or leaning on your hands/face for prolonged periods. Keep pressure off the treated areas.
- Ditch the makeup (for now) – Give your skin time to breathe and recover before applying foundation or concealer. If you absolutely must, stick to mineral-based makeup.
- Cool compress – If you feel puffy, a clean, cool compress can help calm the area.
Most patients find that by day two, skin looks and feels back to normal – just with a little extra glow.
Longer-Term Care: Building on Your Results
The real beauty of polynucleotides is that they work over time. They’re not about instant volume; they’re about regenerating skin from within – stimulating collagen, improving elasticity, and restoring hydration. That means the habits you build in the weeks after treatment can make a huge difference to results.
Here’s what we recommend:
1. Prioritise Hydration
Polynucleotides attract water into the skin – so back them up with good hydration habits.
- Drink 2–3 litres of water daily
- Add hydrating serums with hyaluronic acid or glycerin
- Use a nourishing moisturiser to lock it in
2. Sun Protection Is Non-Negotiable
UV damage is one of the fastest ways to undo your hard work. Daily SPF 50+ is a must, even in cloudy London. Look for formulas with added antioxidants for an extra shield.
3. Support with Skincare Actives
Once your clinician gives the green light (usually after a few days), you can reintroduce:
- Vitamin C (brightening, antioxidant protection)
- Peptides (collagen support)
- Retinol (cell turnover – though go slow if you’re new to it)
These will complement the regenerative effects of your injectable skin boosters.
4. Book Your Treatment Plan
Polynucleotides usually work best as a course – typically three sessions, spaced a few weeks apart. Sticking to your plan ensures the collagen stimulation compounds for optimal results.
Signs of a Compromised Skin Barrier
Supporting your skin barrier is key if you want to see lasting improvements. Watch for these common red flags that your barrier needs a little extra love:
- Persistent dryness or flakiness
- Sudden sensitivity to products you normally tolerate
- Redness or irritation that lingers
- Breakouts that feel different to your usual pattern
If you notice these, simplify your skincare (gentle cleanser, moisturiser, SPF) and speak to your practitioner for advice.
5 Habits That Maximise Polynucleotide Results
Think of these as the lifestyle “biohacks” that supercharge your treatment:
- Get consistent sleep – Skin repairs itself overnight; aim for 7–9 hours.
- Eat for your skin – Antioxidant-rich foods (berries, leafy greens, oily fish) help combat oxidative stress.
- Limit alcohol and smoking – Both deplete hydration and accelerate collagen breakdown.
- Manage stress – High cortisol slows repair; mindfulness or light exercise can help.
- Keep up with maintenance – Once your course is done, top-ups every 6–12 months will maintain your glow.
Polynucleotides vs. Other Skin Boosters: Aftercare Differences
Patients often ask: is aftercare for polynucleotides different from other injectables? The short answer is: not really. But here’s a quick comparison:
| Treatment Type | Immediate Downtime | Aftercare Focus | Longevity |
| Polynucleotides | Minimal swelling/bumps | Hydration + barrier support | 6–12 months |
| Hyaluronic acid skin boosters | Similar to polynucleotides | Maintain hydration | 6–9 months |
| Fillers | Slight swelling/bruising | Avoid pressure on area | 9–18 months |
The key difference? Polynucleotides are regenerative. They don’t just “sit” in the skin like filler – they stimulate repair, which means your aftercare habits make an even bigger difference to the outcome.
What to Expect Over Time
- Week 1–2: Skin looks calmer, more hydrated
- Weeks 3–6: Collagen stimulation kicks in; firmness improves
- 3 months: Visible rejuvenation – plumper, smoother, healthier skin
- 6–12 months: Results peak, with maintenance top-ups recommended
Remember: these results are subtle and natural. Nobody will ask if you’ve “had work done” – they’ll just say you look well-rested, refreshed, and glowing.
The Bottom Line
Polynucleotides aren’t a fad – they’re a smart investment in your skin’s long-term health. But like all treatments, your results depend not only on the skill of your injector but also on how you care for your skin afterwards.
Think of aftercare as the secret weapon that takes your results from “nice” to “wow.” Stay hydrated, wear your SPF, keep up with your treatment plan, and make those healthy lifestyle swaps – your skin will thank you for it.
At Look Lovely, we create tailored treatment plans that combine polynucleotide injections, skin boosters, and supportive skincare to deliver results that feel natural, subtle and beautifully you.
If you’re ready to explore polynucleotide treatments in London, our doctor-led team at Look Lovely Medical Aesthetics can guide you through whether they’re right for you. And if you’d like to compare them with other options, check out our blog on The Smart Edit: How to Choose the Right Anti-Ageing Treatments.’
