Aiva Wellness is a luxury medical aesthetics clinic in Mayfair, London, led by Dr. Sef—creator of the UK’s first regenerative penis filler for penis enlargement: aiva® Hybrid-Ultimate filler. Alongside Dr. Raheem, they were the first British doctors to publish their penis enlargement techniques in the medical journals. Aiva® RE-VERSE, their anti-ageing innovation, reflects their pioneering edge. With 10+ years of experience, Aiva offers injectable-based treatments grounded in science, artistry, and clinical precision. Known for natural results and a discreet care model, Aiva serves global clients who seek trust, safety, and long-term enhancement in a private, boutique setting. Every consultation is bespoke, honest, and results-driven.