Since the only way to achieve permanent hair removal without electrolysis or LASER would be to build up scar tissue in the follicle or surrounding skin, ths type of product can’t work without scarring. I assume scarring would be unacceptable.
Scalding the skin would work, but there too, one would have scarring.
If you want to pay $20 for 50 cents worth of cream, go right ahead, but do come back to tell us how that worked out for you.