Girls, RLT does not induce labour, that is why it is recommended to be taken from 27 weeks. It is used to prepare the uterus for labour, strengthening the uterine muscles allowing for more effective contractions, 'when' your body is ready to begin the birthing process. Hopefully Alan will pop in and provide some more information.

People that are taking RLT in the hope of inducing labour are wasting their time.

I took it from 27 weeks with my DD, and didn't go into labour until 39w4d, my labour was quick and lasted 6 hours.