Here’s what consumers have asked with answers from Dr. Lewinn's staff and previous consumers.
The nearest competitors seem to run on classy packaging and presentation, but then again they are not very much cheaper. Juvefoxo Immortal for example also reportedly has issues with its packaging and customers say they get half empty tubs!
Dr LeWinns products are well recommended on many forums but there do not seem to be any particular medical endorsements
Dr LeWinns Eternal Youth is a luxury line, which contains a "powerful hexapeptide" called Juveleven TM which has been scientifically developed in Spain! Supposedly this turns the clock back on aging by ten years. But, you can also get plain Juveleven in a more modest 5 oz bottle for USD 19.95 from www.naturalorganicskincare.com- without the fragrance and classy packaging. But I think quantity wise it works out the same.