I believeee the infini'silk's lamp is good for over 5,000 flashes. Uh oh! Sadly you can't replace the cartridges in the Infini'Silk, you can only replace cartridges in the Infini'Silk Pro, which is like $300 or so.
You can only use the Infini'Silk on an area every four weeks or so, using it more often than that will not give you any effects. Something about hair growing in different stages at different times.
Let's say you're treating only your face, arms, chest, and tummy (which is what I do), and it takes 53 flashes to treat your face, 160 flashes to treat your arms, and 88 flashes to treat your tummy and chest. Those are all estimated numbers by the way lol! Just guessing here.
That would be 301 flashes for one complete treatment every four weeks, which is roughly a month, so you would have about twelve treatments each year.
That's 3,612 flashes a year.
Meaning that the Infini'Silk will last you around 16-17 months, you'll just have to get a new one for $120 after that.
If you even need it, your facial/body hair will almost definitely be reduced to near nothing after you use the Infini'Silk until it finally dies.
I mean if you're living paycheck to paycheck like me and only make like $400 a month, this is a pretty good option if you can't afford to spend $300+ at once.
But if you're Ms. Moneybags and can afford to get one of those $500 home laser hair removal machines, go for it! Faster results, better results.