What do systematic reviews say?

RhCG vs uhCG

RhCG showed no clear difference in clinical pregnancy rate per woman compared with uhCG (moderate certainty).

• Recombinant versus urinary human chorionic gonadotrophin for final oocyte maturation triggering in IVF and ICSI cycles 2016 · Cochrane Headline outcomes only
  OR 1.06 [0.87, 1.29]
  13 studies · 1806 participants
  Moderate