What are hyaluronic acid fillers?
If you’re considering having a hyaluronic acid filler, it’s important to be well-informed about the treatment, how it works, and the possible risks. Hyaluronic acid fillers are a popular choice for people looking to rejuvenate their face, reduce wrinkles, or enhance the volume of areas such as the lips, cheeks, or chin. In this article, we cover everything you need to know—from the basics of hyaluronic acid to choosing the right practitioner and aftercare following treatment.
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What Is a Hyaluronic Acid Filler?
A hyaluronic acid filler is a clear gel injected in small amounts into the skin. Its purpose is to improve the shape and structure of the face by adding volume or smoothing out wrinkles. The gel contains hyaluronic acid, a substance naturally found in the body that helps retain moisture. Popular brands of hyaluronic acid fillers include Restylane®, Juvederm®, Belotero®, and Emervel®.
What Are Hyaluronic Acid Fillers Used For?
Hyaluronic acid fillers can be used for various purposes, depending on your goals and the areas you want to treat. They are commonly used to:
Reduce wrinkles: Such as laugh lines, marionette lines, frown lines, forehead wrinkles, and crow’s feet.
Add volume: For example, fuller lips, enhanced cheeks, or a more defined jawline.
Improve skin texture: In some cases, filling certain areas can make the skin firmer and smoother.
What Is Hyaluronic Acid?
Hyaluronic acid is a substance naturally produced by the body. It has the unique ability to bind large amounts of water—up to 6 litres per gram. For example, the vitreous body in the eye consists of around 98% water and just 2% hyaluronic acid.
Because water is almost incompressible, tissues rich in hyaluronic acid are also resilient, particularly in connective tissue. This helps protect structures like intervertebral discs from damage. Normally, body weight—and activities like running or jumping—would place too much stress on these areas, potentially causing harm. Hyaluronic acid, as a component of synovial fluid in joints, acts as both a lubricant and a cushion.
Hyaluronic acid fillers are crosslinked. The degree of crosslinking varies by brand and type, determining how firm, durable, and water-binding the filler is. The purity of the hyaluronic acid and its level of crosslinking largely determine the quality of the filler.
Read more:What Is a Filler?
What Can You Do with Hyaluronic Acid Fillers?
Hyaluronic acid fillers are primarily used to smooth wrinkles, restore volume to sagging skin, and enhance facial contours. For example, they can define the lip line, create symmetrical cheekbones, or fill tear troughs.
As you age, the skin loses volume and firmness, making fine lines more visible and causing slight sagging. By injecting a small amount of hyaluronic acid with a fine needle into areas of volume loss, you can restore structure and firmness. Common areas include the cheekbones, under the eyes, nasolabial folds, and the lips.
Credits: Renew Clinic, Zandvoort and Amsterdam
When Should You Avoid Hyaluronic Acid Fillers?
There are certain situations in which it’s better not to undergo a hyaluronic acid filler treatment:
If you have ever had an allergic reaction to hyaluronic acid or a filler.
If you are pregnant or breastfeeding.
If there is already a permanent filler in the area to be treated.
If you have an active herpes simplex infection (such as a cold sore), as this could worsen the condition.
If you have a skin infection or other active skin issues in the area to be treated.
What Does a Hyaluronic Acid Treatment Involve?
A hyaluronic acid treatment is usually quick and effective. Here’s what to expect:
Numbing: Depending on the area being treated, you can choose a numbing cream, ice, or a local injection to temporarily numb the area.
The Treatment: The filler is injected into the skin using a fine needle, one injection at a time. This usually takes 15–30 minutes, depending on the size of the treatment area.
After the Treatment: The treated area is gently massaged to ensure the gel is evenly distributed.
Hyaluronic Acid Filler Prices
Treatment | Lowest Price (£) | Average Price (£) |
1 ml filler | £155 | £240 |
2 ml filler | £120 | £215 |
What Results Can You Expect from a Filler Treatment?
The results of a hyaluronic acid treatment are visible immediately, but the effects are not permanent. Hyaluronic acid is gradually broken down by the body. Results typically last between 6 and 12 months, but with a follow-up treatment, they can last up to 18 months. For areas like the lips, top-ups every 6 months are often recommended to maintain optimal results.
Results:
What Are the Possible Side Effects of Hyaluronic Acid Fillers?
Although hyaluronic acid treatments are generally considered safe, some side effects can occur. The most common include:
Redness, swelling or bruising: These usually settle within a few days to a week.
Unevenness or small lumps: Sometimes the filler doesn’t spread evenly, which can often be corrected with gentle massage.
Rare complications: In very rare cases, a blockage can occur if filler enters a blood vessel. This carries a small risk of vision problems, particularly with frown line treatments.
What Can and Can’t You Do After the Treatment?
After your treatment, there are a few important things to keep in mind:
You can:
Wash your face as normal and apply makeup.
Use a cold compress to ease swelling or tenderness.
You should avoid:
Intense physical activity such as exercise for 24–48 hours.
Saunas, sunbeds, or prolonged sun exposure for one week after treatment.
Laser treatments or chemical peels in the weeks following treatment, as these can trigger inflammation.
When Should You Contact Your Practitioner?
It’s important to get in touch with your practitioner if any side effects don’t settle within a few days, or if you experience severe swelling, pain, or unusual symptoms. Always seek advice if you’re concerned about your treatment.
Experiences
What makes her clinic special is not only Dr. Magdalena’s expertise but also the entire team, who create a warm, welcoming atmosphere that feels more like visiting close friends than going to a medical appointment. They are attentive, supportive, and genuinely care about every detail.
There is no other clinic quite like Dr. Magdalena Bejma’s. Her talent, professionalism, and the positive energy of her team make every visit a truly outstanding experience.❤️❤️❤️❤️👌👌👌 Show less »
Your one-to-one care, patience, professionalism and attention to detail really is second to none Joe. I would gladly recommend anyone even considering a first-time cosmetic treatment to pay you a visit! Thank you so much 😊 Show less »
I recently visited Kallisti Aesthetics in Egham, Surrey for a course of Sunekos skin booster treatments, and I couldn’t be happier with the experience or the results.
Kate is highly professional, gentle, and so knowledgeable about this treatment. I chose Sunekos because I’ve seen experts like Dr Ben Coyle and Dr Abs speaking about it on social media and truly trusted their medical and ethical expertise and I’m so glad I found somewhere local that offers it!
My skin is glowing, firmer, and naturally rejuvenated without looking “done”. The treatment is a blend of hyaluronic acid and amino acids that stimulates new collagen, and Kate explained the science and benefits so clearly. I’ve already had comments that I look fresher and more radiant.
If you’re looking for a subtle, natural skin booster for the face or neck, I’d highly recommend Kallisti Aesthetics it’s a discreet home clinic with a calm, personal touch, and the results speak for themselves. I’ll absolutely be returning for maintenance and other treatments.
Highly recommend for anyone in Surrey looking for Sunekos or advanced skin treatments. Show less »
I honestly can’t believe how much my skin has transformed since I started seeing Renata! I’ve had two sessions of hyaluronic acid boosters (Revspro 32) and three sessions of polynucleotides — and wow, the results have been incredible.
Before these treatments, my skin looked tired, dull, and thin — almost like paper. It had lost its glow and elasticity. But now, it’s radiant, hydrated, and full of life. The texture feels smoother, stronger, and so much healthier. Even after the first session, people started noticing and giving me compliments!
Renata also recommended starting microneedling, and I’m so excited because each session just keeps improving my skin even more. My face feels lifted, firm, and refreshed — like it’s gone back in time.
If your skin feels dry, lifeless, or has lost that youthful bounce, I can’t recommend these treatments and Renata enough. She truly brought my skin back to life — I feel confident, glowing, and absolutely amazing! ✨ Show less »
I’ve been seeing Renata and had two sessions of hyaluronic acid boosters (Revspro 32) and three sessions of polynucleotides. I honestly can’t believe the transformation in my skin.
Before, my skin felt like paper, dry, and dull — almost gray in tone. Now it’s glowing, hydrated, and healthy-looking. The texture has completely changed; it feels firmer, smoother, and more elastic. I’ve even started microneedling sessions as advised by Renata, and my results keep getting better.
I’ve received so many compliments since the very first session. If you’re struggling with dry, tired, or thinning skin and feel like you’ve lost collagen and elasticity, I can’t recommend this treatment and Renata enough. My skin feels rejuvenated, strong, and truly renewed. ❤️ Show less »
I am busy Mum who works full time and neglects my skincare routine and so I was thrilled to have won this.
Upon arriving at the clinic Cleo made me super welcome and comfortable.
Cleo started by assessing my skin and then talking me through the facial - a BB Glow is a semi-permanent skin treatment that gives the effect of wearing lightweight BB cream or tinted moisturiser, without daily makeup.
The BB Glow Process involved
1. Cleansing & Prep
• The skin is deeply cleansed to remove impurities, oils, and makeup.
• A mild peel or exfoliation is sometimes used to prep the skin and open pores.
2. Serum Infusion (via Microneedling / Nano-Needling)
• A microneedling or nano-needling device is used to create micro-channels in the skin.
• A pigmented BB serum (enriched with vitamins, peptides, hyaluronic acid, and tinted pigments) is infused into the epidermis.
• This helps even out skin tone, reduce redness, and minimise imperfections.
3. Layering for Coverage
• Depending on the desired effect, 1–3 layers of serum are applied for a gradual build-up of a natural tinted look.
4. Serum
• A serum is applied to calm the skin and lock in nutrients.
5. Medical-Grade Red LED Light Therapy (Final Step)
• Red light (around 630–660nm) is applied for 10–20 minutes.
• This enhances serum absorption, reduces redness, promotes collagen production, and speeds healing.
Benefits of BB Glow + Red LED
• Instant Glow & Even Skin Tone – reduces redness, pigmentation, freckles, and dullness.
• Semi-Permanent Tint – a natural “makeup look” that can last several weeks.
• Hydration Boost – hyaluronic acid and peptides improve moisture retention.
• Collagen Stimulation – microneedling + red light helps firm skin over time.
• Reduced Post-Treatment Irritation – LED calms inflammation and redness.
• Brighter, Fresher Complexion – gives skin a radiant, glass-like finish.
I cannot explain the difference after 1 session in my skin, my pores looked smaller and my skin looked brighter and healthier - I even went out the next day with no make up!
I cannot recommend this facial enough, I will definitely be booking again.
Thank you so much Cleo 🫶🏼 Show less »
I’ve now been to her three times, and each visit has been just as professional, caring, and friendly as the last. During treatments, she’s so gentle and attentive, always checking that I’m comfortable. And the support doesn’t stop when I leave , she’s always happy to answer any questions, give advice on products, and guide me on how to keep my results looking their best.
She also kept me well informed about which products are cruelty-free, which is something that’s very important to me, and I really appreciated that extra thought and understanding.
It’s rare to find someone who combines such skill, attention to detail, and genuine care for their patients. I feel completely confident in her hands and so grateful to have found her ahead of my big day. If you’re considering aesthetic treatments, I can’t recommend Dr C highly enough. Show less »
My skin was a little dry and needed a glow-up. The treatment was tailored to my skin’s needs. The combination of Juvelook, polynucleotides, micro-dose Botox, and high-strength hyaluronic acid left my skin smoother, more hydrated, and with a radiant, glow.
The treatment softened my pores and fine lines. It lives up to the promise of the Korean glass skin effect. Thanks Ashleigh. Show less »
I went in for a consultation to Navi , she is qualified in aesthetic who explained everything about dermal fillers. She used a hyaluronic acid-based product to restore volume in my cheeks and smooth out my nasolabial folds and marionette lines to take off the droopy smile and she put some filler in lips to make it looks noticeable as my own lips are very small. She also put filler in my chin and worked on my lower face. The process was quick and surprisingly comfortable.If you're like me and looking for a non-surgical facelift alternative, I highly recommend considering facial fillers. I was back to work the next day. There was minimal swelling and no real downtime.
It's been a few months since my treatment, and I still love the results. I feel more confident in photos and love how smooth and lifted my face looks. For anyone researching facial rejuvenation or non-invasive anti-aging treatments, fillers are 100% worth it and Navi is best aesthetician and she knows her job. She was really careful and helpful and she took her time to meet my satisfaction. Show less »
Kate is professional, easy to talk to, and takes her time with treatments. Nothing ever feels rushed, and the whole experience is relaxed, discreet, and professional. The clinic is spotless, and I wouldn’t hesitate to recommend her. Show less »
I had 3 sessions of micro needling which included blend of exosomes, growth factors, hyaluronic acid and peptides.
After having the 3rd session I can now really feel the improvement in moisture levels in my skin - I used to wake up and my skin would feel really dry & uncomfortable.
When I look in the mirror my skin definitely looks fresher and more alive !
Thank you Sandra Show less »
Dr Kate was warm, friendly and professional with a great 'bedside manner' she was a former GP after all! And I wanted someone that had medical knowledge. She made me feel very relaxed and reassured. She talked me through the procedure amd I was able to ask any questions. There wasn't a conveyer belt of clients and Dr Kate took her time, I didn't feel rushed.
The clinic is discreet, clean and the receptionist Elena is lovely, making you feel welcome.
For a first experience I can't rate Dr Kate Aesthetics enough to be honest. Being a 'first-timer' I was a bit anxious that evening about my lips so I messaged Dr Kate who messaged back and video called me the next morning. She was not concerned, offered me reassurance and put my mind at rest.
I am already looking at booking in for another procedure with Dr Kate! Show less »
I also had the CV Aesthetics lip treatment as my lips , especially the bottom one was dry and scabby from biting my lip . I had lip coconut lip scrub , AHA exfoliator , cherry Hyaluronic Acid lip mask then finished with Lip Conditioner . My lips were instantly hydrated , smoother and much plumper . I would definitely recommend Claud and these treatments . Thanks x Show less »
How Long Do Hyaluronic Acid Fillers Last?
Hyaluronic acid fillers provide long-lasting results, but they aren’t permanent. Most people find that the effects last between 6 and 12 months, depending on the area treated and the amount of filler used. If you’d like to maintain your results, you can consider a top-up after a few months.
How to Choose the Right Clinic and Practitioner
When choosing a clinic and practitioner for your hyaluronic acid treatment, it’s important to take your time and do your research:
Look for qualified practitioners: Experience and a strong reputation are essential for a safe and effective treatment.
Read reviews and patient experiences: Independent review platforms make it easy to compare clinics and practitioners based on feedback and pricing.
Discuss your expectations: During your consultation, make sure you clearly explain what you’re hoping to achieve from the treatment.
The Importance of Good Aftercare
Aftercare is key to achieving the best possible outcome. Be sure to follow your practitioner’s instructions and allow your skin time to recover. Avoid anything that may disrupt healing, such as strenuous exercise, heat, or pressure on the treated area. If you’re unsure or have any concerns, always reach out to your practitioner for advice.
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Book an Appointment at a Reputable Clinic
Finding the right clinic for your hyaluronic acid treatment doesn’t need to be complicated. With comparison platforms, you can quickly and easily search for qualified practitioners and clinics. You’re able to compare by price, experience, and patient reviews, making it much easier to choose a trusted professional for a safe treatment.
With this guide, you’re now well-prepared to make the best choice for your hyaluronic acid treatment. Don’t forget to have an open conversation with your practitioner, set clear expectations, and follow the recommended aftercare advice. This way, you’ll be able to enjoy a refreshed, youthful appearance with results that can continue to improve over the coming months.
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Frequently asked questions about hyaluronic acid fillers
What is a hyaluronic acid filler?
A hyaluronic acid filler restores volume where the skin needs it most. As we age, the skin naturally becomes thinner. A hyaluronic acid filler works by hydrating the skin from within while adding the desired volume for a fresher, more youthful look.
What does a hyaluronic acid filler do?
Hyaluronic acid is a substance that naturally occurs in the body and acts as a powerful water binder. Pure hyaluronic acid can hold up to 1,000 times its own weight in water, making it highly effective at keeping the skin hydrated from within. In addition to its moisturising properties, it also restores volume to the skin, helping to smooth out fine lines and wrinkles. The result is a fresher, fuller, and more youthful appearance.
How long does a hyaluronic acid filler last?
A hyaluronic acid filler typically lasts around 9 months. A firmer type of filler often provides longer-lasting results, while a softer filler (for example, used in the dynamic lip area) usually has a shorter effect. Compare different hyaluronic acid fillers on Injectablesbooking.
What is the difference between hyaluronic acid fillers and Radiesse?
Radiesse stimulates your body’s own production of collagen and elastin. This creates natural volume and improves skin firmness. In contrast, regular fillers contain hyaluronic acid, a substance that attracts moisture and provides additional volume.
What is the difference between Profhilo and hyaluronic acid fillers?
Fillers soften lines and folds while restoring lost volume in the face. However, they do little to improve overall skin quality. Profhilo, on the other hand, directly targets skin quality: it strengthens the skin from within, reduces skin laxity, and gives a healthy, natural glow.