Scam. Some of the anti-aging clinics sell this, or similar Oxytocin products and all I have every seen are negative reviews. It's one of those "This works great for some people - your results may vary" marketing gimmicks.
ERO is right. There seem to be a number of Oxytocin products suddenly for sale (or I have just recently noticed them). In any case, there are always elastic, disclaimers attached.