Dr Sef graduated from the prestigious Exeter Medical School and Imperial College London with distinction in 2016.
Dr Sef has performed over 10,000 successful medical aesthetic injections and Injectable procedures. He has over 10 years of experience in the aesthetic and cosmetic space having founded his first aesthetic company in 2014.
Beyond his clinical work, Dr. Sef has trained a generation of doctors in advanced facial and intimate aesthetic techniques, earning a reputation not only as a visionary but as a mentor to the next wave of elite cosmetic practitioners.
He pioneered and developed the innovative Penis Filler Hybrid-Ultimate® dermal filler used for Penis Enlargement procedures. Widely regarded as the global leader in non-surgical penis enlargement, Dr. Sef holds the distinction of being the first British doctor to publish his pioneering techniques in the scientific literature.
Chaudhry M, Chaudhry AR. A Novel Application of a Single-Entry Injection Technique for Nonsurgical Penile Enlargement: A Case Report. Cureus. 2025 May 7;17(5):e83637. doi: 10.7759/cureus.83637.
https://pubmed.ncbi.nlm.nih.gov/40486481/
He is British born, British educated and fully registered with the GMC.
Dr Raheem was brought into the Aiva team for his expertise and extensive specialist knowledge to co-develop our penis filler, penis enlargement treatments and aiva® facial treatments.
Dr Raheem holds the distinction of being one of the first British doctors to publish pioneering techniques with regard to Hybrid-Ultimate® Penis Filler in the scientific literature. He co-authored the novel study with Dr Sef to lead the way in penis enlargement techniques.
He has vast experience in training jobs, including anaesthetics, surgery, acute medicine, and cardiology in Birmingham. He also gained experience in A&E in North London hospitals before qualifying as a GP consultant from the London Deanery.
He is British born, British educated, and fully registered with the GMC.