Review title is Good replacement for the extinct Bullfrog Surfer Formula [SEP] I was a long-time user of Bullfrog's Surfer Formula. Bullfrog discontinued it, and the replacement didn't come close in ease of use and effectiveness. I did a search, hoping to find a hidden BSF supply. None to be found, but I saw a reference to Doc Martin's Nextgen. Hmm.<br /><br />I decided to buy it. The product arrived. My first reaction was a little skeptical: 2 ounces isn't much!<br /><br />I gave it a try the next day on a hot, sunny day. A little bit goes a LONG way, so 2 ounces should last a while. It is very easy to apply, and even has a pleasant scent. I was out in the sun 5 hours with one application, and didn't have any burn. It didn't run until I got a surprise face bath, and then I had some run-off in my eyes. But I haven't had any eye run-off otherwise, even on long, hot, sweaty, muggy days.<br /><br />Doc Martin's Nextgen is a good substitute for the late Bullfrog Surfer Formula: it's easy to apply, it works for hours and hours, it stays put, but it's easy to remove when you want to remove it. I expect to be a repeat customer.<br /><br />A pleasant surprise was receiving a personal e-mail from the seller checking on my satisfaction. Old-school customer service, which I appreciated.