• 🇬🇧 Leading Penis Filler Clinic in the UK


Over 10,000 safe and effective cosmetic injections performed.
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Frequently Asked Questions

Why thicken your penis?

Women and sexual partners prefer girth. This has been scientifically proven. The average vagina is only 4-5 inches in length and depth. Most men fall into this length category and therefore length isn’t much of an issue.

Increasing the girth of your penis allows you to really “fill” up your partner. The female g spot is 2-3 inches on the anterior/roof of the vaginal wall. Having a thicker penis pulls the clitoris closer to the penis and g-spot allowing for a heightened orgasm.

How long does it last?

There is a difference between how long the filler lasts in your penis and how long the girth lasts.

Filler manufacturers and pharmaceutical companies can claim that there filler can last up to 24 months. Technically there not lying.

If we were to inject your penis today, then analyse your penis in two years under a microscope, there may be trace elements left of the filler. Hence why companies can get away with saying that there product lasts 2 years.

Does that mean the thickness will be the same on the day of injection and two years later. The answer is no.

The reality is, not matter type of filler you use: the significant (useable/functional) girth will hold for 6-9 months before it starts to drop again.

Hence why after 30-40MLs of filler in your initial treatment plans. To maintain that thickness you will need approximately 10MLs once and or twice a year.

That’s the reality of hyaluronic gel fillers in all body areas including the penis.

Once clients have completed their initial treatment plan, they receive our top up prices which are cheaper than the initial cost. 

Can you increase the length of your penis using PenisFill®?

The short answer is YES.

After adding the filler your penis will increase in length in its flaccid state. Some of our clients have increased their length 50% or more.

Will it affect my erection?

You should achieve a harder and stronger erection for longer. The filler can act like a sex-toy “cock-ring”. Once the blood has rushed into the penis to produce an erection, a cock-ring restricts the base of penis preventing blood from leaving the penis. Therefore maintaining a stronger and firmer erection. Filler can act in the same way.

What other benefits are there of dermal filler?

Once the filler is injected into your penile skin, it also stimulates the production of collagen. Once the filler is broken down by the body there will be more collagen than there was before. This means the penis will still be thicker despite the filler being broken down.

The skin will appear more hydrated, plump and healthy. It can smooth out the wrinkled appearance some penises have.

What is a cannula?

To prospective clients like yourselves the cannula looks scary and painful, to the doctor, using a cannula puts the doctors mind at rest because it is the safest way to perform dermal filler injections. For several years and over 10,000 injections, Dr Sef has been using cannulas to deposit filler into the face.

The cannula is a thin plastic tube with a blunt end. It will not cause damage to structures like a typical sharp needle does. We always inject in safe zones within the penis. With our technique and depth of injection it is almost impossible for the filler to enter the functional parts of the penis (voiding and erection).

What to expect post treatment?

You will walk out of the clinic with an instantly thicker penis. There may be some bruising. This will subside, on average within 3-4 days. Filler will absorb water once it is injected into the skin. Therefore the penis will continue to thicken. The final result will be in 1-2 weeks from day of injection.

There may be some small lumps and bumps, these can be easily massaged to allow for a thicker and smoother penis. All clients receive a complimentary review if clinically needed.

What if I do not like my result?

The beautiful characteristic of the filler we use is that it is FULLY reverisble. If for whatever reason you do not like the result of your penis, with one injection of a filler dissolving enzyme (hylase), your penis will return back to how it was. The dissolving agent has been used for decades safely and effetely treating complication with facial injections. The dissolving agent is also sometimes used to medically treat foreskin conditions such as phimosis.

How much filler do I need?

From our experience most men will need anything between 10ml and 40ml depending on the results they wish to achieve and also their current penis size.
There is variation from patient to patient and we will give you an accurate estimation required on consultation. we offer competitively priced packages 10ml & 20ml. Click here to see pricing.

The main size will be the increase in girth and can certainly be noticeable during sex, for both you and your partner, and we strongly recommend testing your new girth with any long-term partner, before opting for any additional size gains. Further injections can be provided at a follow-up appointment as soon as four weeks later if additional girth is desired.

Ironically men with naturally larger penis will need more filler to achieve a thicker penis. For example a man who is 7 inches in length erect will need more filler to achieve a 6 inch girth than a man who is 5 inches erect. After we have built up the thickness and filler in your penis, you will only need maintenance filler (10-20ml) per year to maintain your results.

What filler do you use to increase the size of the penis?

We use Hyaluronic gel dermal filler which is a naturally occurring substance made by the body. Hyaluronic gel fillers (HA) are completely safe and have been used in the face for many years. The great thing with HA fillers is that they are not fully permanent and can be reversed straight away with an enzyme. We use a medium density dermal filler which is smooth and soft resembling the penis tissue post procedure and giving a long lasting result.

Why don’t I get permanent filler?

Permanent filler is an option for some individuals. However we adopt strict safety protocols for our clients. For us, permanent filler sees far too many complications. Permanent filler has been used in the face for several decades. However most doctors stopped using it because they are highly immunogenic ( your body with develop a reaction against it). Therefore the filler will need to be taken out. There is no reversing injection like there is for hyaluronic gel filler. Over 95% of doctors practising filler injections now use hyaluronic gel filler because of its natural and safe profile. For PenisFill® we ONLY use hyaluronic gel filler. It is a filler we know and trust, especially after 10,000 safe and effective injections.

How long after the treatment can I resume with sexual activities?

Usually sexual activities can be resumed after 2 weeks unless your doctor advises otherwise.

What are the potential complications?

The most common issues for dermal fillers in general is an initial discomfort or temporary swelling and bruising.

Not surprisingly, the most typical concerns regarding dermal fillers involve the results of the procedure. Problems such as poor or inaccurate placement, unevenness, and migration can happen. If these do happen (rare) they can be easily rectified and if not reabsorbed. Another side affect is infection (rare). If this does occur antibiotics are given and is cleared up within 1 week. The PenisFill® technique is performed using aseptic techniques and state of the art sterile clinic rooms. Dr Sef is highly experienced and injected over 10,000 dermal fillers.

I would like to increase the size of my penis. What should I do next?

If you are looking to increase the size of your penis, we advise that you book in a consultation with Dr Sef at PenisFill®.

During the consultation, he will examine you and explain all the possible treatment options in detail, discuss the size you wish to achieve and answer any questions you may have.

The procedure takes as little as 20 minutes and you can return back to normal activities straight away.

The results are instant. You will walk out of our clinic with an instantly larger penis.

Why Choose PenisFill®

We provide a revolutionary NON-SURGICAL penis enlargement procedure pioneered & developed by Dr Sef at Dermis Clinic using dermal filler.

All PenisFill® treatments are carried out at Dermis Clinic branches. Dermis Clinic is Dr Sef’s private medical practise.


Opening Hours
Mon – Fri: 10am – 9pm
Saturday: 10am – 6pm

Request a Call Back

Leave us your details and a member of staff will call you back within 48 hours.

Why Choose PenisFill®

We provide a revolutionary NON-SURGICAL penis enlargement procedure pioneered & developed by Dr Sef at Dermis Clinic using dermal filler.

All PenisFill® treatments are carried out at Dermis Clinic branches. Dermis Clinic is Dr Sef’s private medical practise.


WhatsApp Business

+44 7950 870 259


[email protected]

Opening Hours

Mon – Fri / 10am – 9pm ​​
Saturday / 10am – 6pm


Real Reviews

PenisFill® No1 in The UK

Life Changing Results

★ Review from a Real Client 03/08/21

Just would like to say a massive thankyou, all my concerns an worries were answered, such a friendly team made me feel really at ease! I honestly can’t believe the size of it now 😅 really boosted my confidence I am astonished what 15ml can do thankyou again so much, I look forward to seeing you guys again

★ Review from a Real Client 28/07/21

Hi, just wanted to say a big thank you, it might sounds silly but you have changed my life. I’m so confident now and have spring in my step. Thank you so so much. Will be in touch when I need a top up ❤️

★ Review from a Real Client 25/07/21

I would like to thank you and DR Sef and your staff again all done with further 15mls and looking like a weapon!!!! So glad I found you guys! Professional as ever.

NEW ★ Review from a Real Client

Hi mate, just wanted to give you a bit of feedback as it’s one week ago.

I’ve just finished the antibiotics and have followed, and will continue to follow, the advice given.

My confidence has shot up… even when going to the toilet, I feel so much more confident. I have started to walk and talk with more confidence… I wish I’d done this years ago.

Thank you and please pass on my thanks to Dr Sef

NEW ★ Review from a Real Client

Hey thankyou for all your help and information, reassuring me everything turned out perfect so happy with the result you and Dr sef are brilliant 👏

Real Review from a Real Client

Hey, just extending a massive thank you to you and Dr Sef, he's an awesome human-being.
Hope to speak again soon.

Real Review from a Real Client

I would like to thank Dr Sef and his team, I arrived for my first treatment, and was done in twenty minutes. Very professional and unbelievable results, ever thing was explained and the aftercare for 14 days. I can’t wait to next my next treatment. Thank you again!!!!

Real Review from a Real Client

Tell dr sef thanks you results great as always

Real Review from a Real Client

Hi. All seems well after Tuesday. Looks great aesthetically now. Please thank Dr Sef for all his help, he's a top man 👍

Real Review from a Real Client

Just wanna say a big thank you to all of you and dr sef. Always looked after 😊 appreciated