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Dr Sef

Author: Dr Sef BMBS, BSc

GMC Registered Doctor

AIVA Wellness Clinical Team

Dr Raheem

Medically reviewed by: Dr Raheem MBChB, MRCGP

GMC Registered Doctor

AIVA Wellness Clinical Team

Last reviewed: July 2026


Clinical overview

The Aiva Male Performance Framework™ is a doctor-led model combining structural penis girth enhancement and improved flaccid length with clinically appropriate erectile-function treatment, hormonal assessment, pelvic-floor control and healthy lifestyle measures. Each pillar addresses a different aspect of male sexual performance: penis size, erection quality, libido, ejaculation control, body composition and vascular health.


What is the Aiva Male Performance Framework™?

The internet is increasingly fascinated with "stacks".

Peptides are combined with supplements. Hormones are combined with erectile-dysfunction medication. Experimental protocols are packaged under memorable names and promoted as shortcuts to recovery, muscle growth or sexual performance eg "Wolverine Stack".

The problem is that male sexual function cannot be reduced to one peptide combination, one medication or one procedure.

Penis size, erection rigidity, sexual desire, ejaculation control, cardiovascular health and body composition are related, but they are not the same physiological process.

The Aiva Male Performance Framework™ is therefore not one medicine, one fixed treatment package or one universal prescription. It is a doctor-led model for identifying which part of male sexual performance is limiting the individual patient and addressing that area appropriately.

The five pillars of the Aiva Male Performance Framework™

  1. Approximately 30 ml of Hybrid-Ultimate® penis filler delivered over two staged sessions, where clinically and anatomically appropriate.
  2. Clinically appropriate daily low-dose tadalafil, prescribed only following medical assessment.
  3. Optimisation of testosterone only where symptomatic testosterone deficiency has been properly diagnosed.
  4. Reverse Kegels, diaphragmatic breathing and pelvic-floor awareness for selected men seeking improved ejaculation control.
  5. Resistance training, cardiovascular exercise, nutrition, sleep and body-composition optimisation.

Each pillar addresses a different limitation.

  • Hybrid-Ultimate® penis filler directly addresses penis size, erect girth, shape and flaccid length.
  • Tadalafil addresses erectile blood flow and erection haemodynamics.
  • Testosterone treatment addresses genuine hormonal deficiency.
  • Pelvic-floor training addresses neuromuscular control and may indirectly support erection quality and ejaculation control.
  • Exercise, nutrition and sleep support the vascular and metabolic foundations beneath sexual performance.

The aim is to greatly enlarge the penis, improve sexual stamina and performance.


Pillar one — 30 ml of Hybrid-Ultimate® penis filler over two sessions

Hybrid-Ultimate® is the structural component of the Aiva Male Performance Framework™.

For many first-time patients, approximately 30 ml may be delivered over two separate treatment sessions. The final volume is always individualised according to:

  • existing penile anatomy;
  • tissue capacity;
  • circumcision status;
  • previous penile procedures;
  • flaccid and erect proportions;
  • aesthetic objectives;
  • skin mobility;
  • medical risk.

Thirty millilitres should not be interpreted as a mandatory dose for every patient. It represents a commonly used two-session pathway for suitable men rather than a fixed prescription. Sometime more is used.

What is Hybrid-Ultimate® penis filler?

Hybrid-Ultimate® is an Aiva Wellness penis-filler combining cross-linked, high-density hyaluronic acid volumisation with a collagen-stimulatory component using poly-L-lactic acid.

The hyaluronic acid component provides the majority of the immediate:

  • size;
  • circumference;
  • shape;
  • cylindrical contour;
  • visual projection;
  • flaccid presence.

The collagen-stimulatory component is intended to encourage gentle, gradual tissue integration through the production of new collagen fibres within the penile soft-tissue envelope.

This will increase erect girth and improved flaccid length or hang while developing a consistency that feels closer to natural tissue than an excessively hydrated, soft and padded layer of high-density hyaluronic acid alone.

How can penis filler improve flaccid length?

Penis filler is principally a girth-enhancement treatment.

However, by adding weight and volume around the shaft, it can improve the way the penis hangs in the flaccid state. Some men therefore experience an apparent increase in visible flaccid length or reduced retraction.

The effect is primarily mechanical and aesthetic:

  • increased shaft weight;
  • reduced tendency to retract;
  • improved flaccid projection;
  • greater visual presence.

The degree of change varies between patients and cannot be guaranteed and is also directly contributed by how well the blood flow is to the penis.

Why are two sessions preferable to forcing 30 ml into one treatment?

The penile shaft is not a static facial structure.

It repeatedly changes shape during:

  • erection;
  • sexual intercourse;
  • masturbation;
  • movement;
  • compression from clothing;
  • sleep-related erections.

A staged approach allows the first layer to settle before we reassess:

  • symmetry;
  • filler distribution;
  • base-to-shaft transition;
  • distal taper;
  • tissue integration;
  • areas requiring refinement.

Attempting to achieve the entire final result in one sitting may increase swelling, tissue pressure, irregularity and the risk of overcorrection.

Aiva Wellness published clinical evidence

Our PubMed-indexed case report described a single-entry blunt-cannula approach for non-surgical penile enlargement using the Cylindrical Dartos-Buck Smooth technique and Hybrid-Ultimate®.[1]

The patient received 15 ml during treatment. At six-month follow-up, the case demonstrated a 0.63-inch increase in penile girth, uniform product distribution, natural tactile characteristics and no reported complications.[1]

This remains a case report rather than a large controlled clinical trial. However, it provides peer-reviewed documentation of the treatment technique, anatomical approach and clinical outcome used within Aiva Wellness.

Does penis filler improve sexual performance?

Penis filler does not directly treat vascular erectile dysfunction, low testosterone or premature ejaculation.

Its direct role is structural, direct, instant penis girth enlargement.

However, patients may experience secondary benefits through:

  • improved body confidence;
  • reduced penile appearance anxiety;
  • increased partner contact during penetration;
  • greater flaccid presence;
  • improved perception of masculinity;
  • reduced performance-related self-consciousness.

These psychological and mechanical effects can contribute to the overall sexual experience, but they should not be confused with improved arterial blood flow or hormonal treatment.

A penis can be larger but still have poor rigidity.

A penis can also have excellent rigidity while remaining narrow.

That is why structural enhancement and erectile physiology should be considered separately.


Pillar two — medically appropriate low-dose tadalafil and erection quality

Tadalafil is a phosphodiesterase type 5 inhibitor.

During sexual stimulation, nitric oxide activates cyclic guanosine monophosphate signalling within penile smooth muscle. This promotes smooth-muscle relaxation, improves arterial blood inflow and allows the corpora cavernosa (erectile chambers) to expand.

PDE5 breaks down cyclic guanosine monophosphate. Tadalafil inhibits PDE5, helping the erectile response persist more effectively.

How can medically appropriate tadalafil support erection quality?

In a suitable patient, daily low-dose tadalafil may support:

  • improved erection rigidity;
  • easier initiation of an erection;
  • improved maintenance during intercourse;
  • greater sexual spontaneity;
  • fuller expansion of the erectile bodies;
  • reduced anxiety about losing the erection.

Trials of once-daily tadalafil have shown clinically meaningful improvements in men with erectile dysfunction across mild, moderate and severe categories.[2]

Does tadalafil increase penis size?

Tadalafil does not create permanent new penile tissue.

It does not increase the anatomical length or circumference of a healthy penis in the same way filler increases structural girth.

However, men who previously achieved only partial rigidity may notice that the penis looks:

  • fuller;
  • longer;
  • wider;
  • more vascular;
  • better expanded.

This reflects improved recruitment of the patient's existing erectile capacity rather than direct enlargement.

Within the Aiva Male Performance Framework™:

Hybrid-Ultimate® increases external structural girth and flaccid length.

Tadalafil may improve functional expansion and rigidity of the erectile tissue underneath it.

The two treatments therefore act through completely different mechanisms.

Is "micro-dose tadalafil" suitable for everybody?

No.

The term "micro-dose" is commonly used online, but tadalafil remains a prescription-only medicine.

The dose should be selected by a licensed prescriber based upon the patient's:

  • medical history;
  • symptoms;
  • cardiovascular status;
  • renal function;
  • liver function;
  • current medication;
  • treatment objectives.

Tadalafil may be contraindicated or unsuitable in patients taking:

  • nitrate medication;
  • recreational nitrates or "poppers";
  • riociguat;
  • certain interacting medicines;
  • selected patients with unstable cardiovascular disease;
  • patients with significant hypotension.

Possible adverse effects include:

  • headache;
  • flushing;
  • indigestion;
  • nasal congestion;
  • back or muscular discomfort;
  • dizziness.

Any patient developing chest pain, sudden visual disturbance, sudden hearing loss or an erection lasting longer than four hours requires urgent medical assessment.


Pillar three — optimising testosterone without prescribing unnecessary TRT

Testosterone influences:

  • libido;
  • sexual thoughts;
  • spontaneous erections;
  • mood;
  • muscle mass;
  • fat distribution;
  • energy;
  • recovery;
  • bone health.

However, testosterone replacement therapy is not a routine sexual-performance supplement.

TRT is only appropriate where testosterone deficiency is diagnosed

Clinical guidelines recommend diagnosing hypogonadism only where a man has compatible symptoms and consistently low serum testosterone concentrations.

The Endocrine Society recommends an initial fasting morning testosterone measurement followed by repeat confirmation. Additional investigation may be required to establish whether the cause is testicular, pituitary, hypothalamic, medication-related, metabolic or functional.[3]

A proper assessment may include:

  • morning total testosterone;
  • repeat confirmatory testing;
  • sex hormone-binding globulin;
  • calculated or measured free testosterone;
  • luteinising hormone;
  • follicle-stimulating hormone;
  • prolactin;
  • full blood count;
  • thyroid and metabolic investigation where indicated;
  • fertility intentions;
  • prostate assessment where appropriate.

TRT should only be considered when there is a genuine clinical diagnosis of testosterone deficiency.

What can testosterone optimisation improve?

In a genuinely hypogonadal man, appropriately monitored treatment may improve:

  • sexual desire;
  • morning erections;
  • erectile response in selected cases;
  • mood;
  • muscle mass;
  • body composition;
  • recovery;
  • general wellbeing.

However, the average effect on sexual function is usually more modest than online TRT marketing suggests.

Systematic evidence indicates that testosterone treatment can improve sexual functioning in men with low testosterone, but average effect sizes are relatively small.[4]

TRT also does not significantly enlarge the penis of a normally developed adult man. Its purpose is to correct hormonal deficiency, not create permanent penile growth.

What are the important risks of TRT?

Exogenous testosterone can suppress luteinising hormone and follicle-stimulating hormone, reducing intratesticular testosterone and sperm production.

Men who want children must discuss fertility before treatment.

Monitoring may include:

  • testosterone concentrations;
  • haematocrit;
  • blood pressure;
  • symptoms;
  • adverse effects;
  • prostate health where clinically appropriate;
  • sleep-apnoea risk;
  • cardiovascular history.

Testosterone treatment should not be started merely because a patient wants a higher laboratory number.


Pillar four — reverse Kegels for premature ejaculation and lasting longer

Many men are taught that stronger Kegels automatically improve sexual performance. This is incomplete advice.

Some men have weak pelvic-floor control. Others repeatedly and excessively tense the pelvic floor during arousal.

A man who:

  • holds his breath;
  • contracts his abdomen;
  • clenches his buttocks;
  • tightens the pelvic floor;
  • thrusts rapidly;
  • becomes anxious as arousal increases;

may unintentionally accelerate himself towards ejaculation.

What is a reverse Kegel?

A reverse Kegel is not an aggressive outward push.

It is the controlled relaxation and lengthening of the pelvic-floor muscles.

The aim is to reduce unnecessary tension while maintaining slow breathing and awareness of arousal.

A simple approach may involve:

  1. Breathing slowly into the lower abdomen.
  2. Relaxing the jaw, buttocks and abdominal wall.
  3. Gently allowing the pelvic floor to release, similar to the sensation of beginning urination.
  4. Avoiding forceful straining or bearing down.
  5. Practising the sensation away from sexual activity.
  6. Applying it during low-to-moderate arousal rather than waiting until ejaculation is inevitable.
  7. Slowing or pausing stimulation as arousal approaches the point of no return.

Can reverse Kegels cure premature ejaculation?

Not universally.

Premature ejaculation may involve:

  • lifelong neurobiological predisposition;
  • performance anxiety;
  • erectile insecurity;
  • relationship factors;
  • excessive pelvic-floor tension;
  • prostatitis-like symptoms;
  • medication or substance effects;
  • learned patterns of rapid stimulation;
  • heightened penile sensitivity.

Pelvic-floor rehabilitation may be useful, but reverse Kegels have not been established as a guaranteed stand-alone cure.

A 2019 systematic review concluded that pelvic-floor muscle training appeared helpful for erectile dysfunction and premature ejaculation, although study quality and training protocols varied.[5]

More recent evidence suggests that isolated pelvic-floor training may be less effective than medication or multimodal programmes combining training with diaphragmatic breathing and other interventions.[6]

The practical lesson is that pelvic-floor work may be helpful, but it should form part of a wider premature-ejaculation pathway rather than being promoted as a miracle technique.

Men with persistent symptoms may benefit from assessment by a doctor, sexual-medicine clinician or specialist male pelvic-health physiotherapist.


Pillar five — training, nutrition and cardiovascular health

Erectile function is closely connected to cardiovascular and metabolic health.

An erection requires:

  • healthy arterial inflow;
  • responsive endothelium;
  • intact nerve signalling;
  • effective smooth-muscle relaxation;
  • adequate trapping of blood within the corpora cavernosa.

Smoking, diabetes, obesity, uncontrolled hypertension, poor sleep and physical inactivity can undermine these mechanisms.

Resistance training and body composition

Resistance training can support:

  • muscle mass;
  • insulin sensitivity;
  • confidence;
  • metabolic health;
  • physical function.

For men carrying excess visceral or suprapubic fat, gradual fat loss may also reveal more of the existing penile shaft.

This is not true penis growth. However, reducing the suprapubic fat pad can make the visible penis appear longer and more proportionate.

Improved body composition may also improve sexual confidence and reduce functional limitations during intercourse.

Cardiovascular exercise and penile blood flow

Aerobic exercise supports:

  • endothelial function;
  • blood-pressure control;
  • cardiovascular fitness;
  • glucose regulation;
  • weight management.

The same vascular system that supplies the heart and brain also supports erection quality.

No medication or filler treatment can fully compensate for severe cardiovascular disease, uncontrolled diabetes, continued smoking or profound physical inactivity.

Diet and sleep

Medical treatment cannot replace healthy foundations.

A sustainable diet should support:

  • adequate protein intake;
  • fibre;
  • fruit and vegetables;
  • healthy fats;
  • stable energy intake;
  • body-composition goals.

Sleep supports hormonal physiology, libido, recovery, mood and insulin sensitivity.

A patient who uses filler, tadalafil or TRT but ignores sleep, obesity, smoking and metabolic disease is addressing the visible output while neglecting the underlying system.


Why male sexual performance requires an integrated approach

Each pillar addresses a separate layer of male sexual function.

Structural penile size

Hybrid-Ultimate® can increase penis circumference, improve shaft proportions and increase flaccid length.

Erection quality

Tadalafil may improve blood inflow, smooth-muscle relaxation and rigidity where clinically appropriate.

Hormonal function

Correcting confirmed testosterone deficiency may improve libido, spontaneous erections and body composition.

Ejaculation control

Breathing, pelvic-floor awareness and reverse Kegels may help selected men reduce excessive tension and regulate arousal more effectively.

Whole-body performance

Training, nutrition, sleep and cardiovascular fitness support the vascular and metabolic system beneath sexual health.

The framework works because these factors are complementary, not because every man should receive every intervention.


Aiva Wellness clinical insight

At Aiva Wellness, the aim is not to place every patient on multiple medicines or lifelong treatments.

The aim is to identify the limiting factor.

For one man, the primary concern may be a "thin dick" so they want penis filler to improve the penis girth.

For another, it may be weak rigidity.

For another, it may be clinically confirmed hypogonadism.

For another, the problem may be premature ejaculation combined with breath-holding, anxiety and pelvic-floor tension.

For another, it may be obesity, smoking, diabetes or poor cardiovascular health.

The safest treatment plan is not necessarily the plan with the most components.

It is the smallest, most appropriate combination capable of addressing the patient's actual concerns.

The Aiva Male Performance Framework™ is therefore a clinical model, not a universal treatment bundle.


Actionable FAQ

Does the Aiva Male Performance Framework™ permanently enlarge the penis?

The Hybrid-Ultimate® component is designed to create direct structural girth enlargement and improved flaccid length.

Tadalafil may improve erection fullness but does not permanently enlarge penile tissue.

TRT does not enlarge the adult penis where development and testosterone levels are normal.

Does every patient need 30 ml of Hybrid-Ultimate®?

No.

Approximately 30 ml over two sessions may be appropriate for many first-time patients, but treatment volume must be individualised according to anatomy, tissue capacity, existing filler, safety and treatment goals. Most of our patients end up having more than 30 ml after they have completed the two sessions. This is mainly driven by a desire to be even bigger, even after experiencing a dramatic penis size increase.

Can Hybrid-Ultimate® treat erectile dysfunction?

No.

Penis filler increases external shaft girth and may improve confidence, but erectile dysfunction requires appropriate vascular, hormonal, psychological and medical assessment.

Can daily tadalafil be used if I do not have erectile dysfunction?

This requires assessment by a licensed prescriber.

Tadalafil should only be prescribed where the expected benefits outweigh contraindications and risks.

Can I take TRT purely to improve sexual performance?

No.

TRT should only be provided after compatible symptoms, repeated biochemical evidence of testosterone deficiency and appropriate investigation.

Can reverse Kegels make me last longer?

They may help selected men reduce excessive pelvic-floor tension and improve arousal control.

They are not a guaranteed cure for premature ejaculation and may work best within a wider treatment programme.

Can all five pillars be combined?

Potentially, but each intervention requires its own clinical indication.

Combining treatments should never replace individual assessment, informed consent and appropriate monitoring.


Clinical conclusion

Male sexual performance cannot be reduced to one peptide, one medication or one procedure.

Penile girth, erection quality, testosterone status, ejaculation control and cardiovascular fitness are connected, but they are not interchangeable.

Hybrid-Ultimate® addresses structure.

Tadalafil may improve erectile haemodynamics where clinically appropriate.

TRT may help men with genuine testosterone deficiency.

Pelvic-floor relaxation may improve control in selected men.

Exercise, nutrition and sleep support the biological foundation beneath all of them.

That is the Aiva Male Performance Framework™:

  • Improve structure where appropriate.
  • Support erectile physiology where clinically indicated.
  • Correct genuine hormonal deficiency.
  • Develop better pelvic-floor control.
  • Protect long-term vascular and metabolic health.
  • And only use the components the individual patient genuinely needs.

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Editorial policy

Aiva Wellness publishes doctor-authored, evidence-informed educational content designed to improve patient understanding and support informed clinical discussions.

Articles are reviewed for medical accuracy but do not replace individual medical assessment, diagnosis or treatment.


Medical disclaimer

This article provides general educational information and does not constitute personal medical advice, diagnosis or a prescription.

Penile filler is an elective procedure performed using dermal-filler products off-label/off-licence for penile augmentation.

Tadalafil and testosterone are prescription-only medicines. They must only be supplied following assessment by an appropriately licensed prescriber.

Tadalafil may be contraindicated in patients taking nitrates, riociguat or certain other medicines, and in selected patients with significant cardiovascular or medical conditions.

Testosterone replacement therapy is only appropriate where a clinical diagnosis of testosterone deficiency has been established through symptoms, biochemical testing and relevant investigation. TRT may suppress fertility and requires continued monitoring.

Premature ejaculation, erectile dysfunction, low libido and changes in sexual performance may reflect underlying physical or psychological conditions. Consult an appropriately licensed doctor before starting medication, hormonal treatment, pelvic-floor therapy or penile augmentation.


Conflict-of-interest disclosure

Aiva Wellness provides doctor-led penile augmentation procedures, including Hybrid-Ultimate® penis filler.

Hybrid-Ultimate® is an Aiva Wellness treatment concept combining hyaluronic acid-based volumisation with a collagen-stimulatory component. Dermal fillers used for penile augmentation are used off-label/off-licence in the United Kingdom.

Dr Sef is an author of the PubMed-indexed case report describing the Aiva Wellness single-entry penile-filler technique and has a professional and commercial interest in the treatments discussed.

Clinical recommendations should remain based upon individual suitability, available evidence, informed consent and the patient's best interests.


References

  1. Chaudhry M, Chaudhry AUR. A novel application of a single-entry injection technique for non-surgical penile enlargement: a case report. Cureus. 2025;17(5):e83637. doi:10.7759/cureus.83637. PMID:40486481.
  2. Porst H, Gacci M, Büttner H, Henneges C, Boess F. Tadalafil once daily in men with erectile dysfunction: an integrated analysis of data obtained from 1,913 patients from six randomised, double-blind, placebo-controlled clinical studies. Eur Urol. 2014;65(2):455–464.
  3. Bhasin S, Brito JP, Cunningham GR, et al. Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2018;103(5):1715–1744.
  4. Diem SJ, Greer NL, MacDonald R, et al. Efficacy and safety of testosterone treatment in men: an evidence report for a clinical practice guideline by the American College of Physicians. Ann Intern Med. 2020;172(2):105–118.
  5. Myers C, Smith M. Pelvic floor muscle training improves erectile dysfunction and premature ejaculation: a systematic review. Physiotherapy. 2019;105(2):235–243.
  6. de Oliveira FA, Lima LB, da Costa MO, et al. Efficacy of pelvic floor muscle training in the management of premature ejaculation: a systematic review and meta-analysis of randomised controlled trials. J Sex Med. 2026;23(6):qdag131. doi:10.1093/jsxmed/qdag131.
  7. Pastore AL, Palleschi G, Fuschi A, et al. Pelvic floor muscle rehabilitation for patients with lifelong premature ejaculation: a novel therapeutic approach. Ther Adv Urol. 2014;6(3):83–88.
  8. Yang DY, Ko K, Lee SH, et al. A comparison of the efficacy and safety between hyaluronic acid and polylactic acid filler injection in penile augmentation: a multicentre, patient/evaluator-blinded, randomised trial. J Sex Med. 2019;16(4):577–585.
  9. Ahn ST, Shim JS, Bae WJ, et al. Efficacy and safety of penile girth enhancement using hyaluronic acid filler and clinical impact on ejaculation. Asian J Androl. 2022;24(3):299–303.
  10. Kusumaputra A, Setiawan MR, Soebadi MA, Wirjopranoto S. Efficacy and complications of hyaluronic acid and polylactic acid for penile augmentation: a systematic review and meta-analysis. Ann Med Surg. 2023;85(9):4546–4554.

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